IKA T 25 digital ULTRA-TURRAX disperser, 1 to 2,000 ml, 3,000 to 25,000 rpm, 0003725000

The small 8 mm stator makes the S 25 N - 8 G (0001024200) the ideal tool for sample volumes of 1 to 50 ml on the T 25. The rotor measures 6.1 mm, the installation length is 108 mm, and the immersion depth is 27 to 85 mm. The tool weighs 0.1 kg.Rotor, gap and finenessThere is a 0.25 mm gap between the rotor and the stator. A maximum speed of 25,000 rpm is permitted, with a circumferential speed of up to 8.0 m/s. The final fineness ranges from 10 to 50 µm for suspensions and from 1 to 10 µm for emulsions.Bearings and durabilityThe shaft runs in a PTFE split-ring bearing. The parts in contact with the product are made of PTFE and AISI 316L. The tool is suitable for solvents and abrasive substances; the pH range is from 2 to 13. Temperatures of up to 180 °C are permissible for short periods, and sterilisation may be carried out using any method.Compatible drivesIn addition to the T 25 digital, IKA also offers the T 25 easy clean digital, the T 25 easy clean control and the T 25 mini control. Furthermore, the T 25 digital Solution, T 25 easy clean digital Solution and T 25 easy clean control Solution sets are available.Larger and smaller toolsThe S 25 N - 10 G, with a 10 mm stator and a capacity of 1 to 100 ml, operates at 9.8 m/s. For volumes of 10 ml to 1.5 l, there is the S 25 N - 18 G. Those using the smaller T 10 drive will also find an 8 mm stator in the S 10 N - 8 G ST, which operates at up to 30,000 rpm and 9.6 m/s.Typical applicationsDispersing small samples from 1 to 50 mlSuspensions with final particle sizes of 10 to 50 µmEmulsions with final particle sizes of 1 to 10 µmWork with solventsSamples containing abrasive particlesTechnical detailsWorking range (H2O)0.001 to 0.05 lStator diameter8 mmRotor diameter6.1 mmStator/rotor gap width0.25 mmMax. permissible speed25,000 rpmMaximum circumferential speed8.0 m/sPenetration depth27 to 85 mmInstallation length108 mmBearingShaft in PTFE split-ring bearingMaterials in contact with the productPTFE, AISI 316LpH range2 to 13Suitable for solventsYesSuitable for abrasive substancesYesMax. operating temperature180 °C (for short periods)Sterilisabilityall methodsFinal particle size of suspensions10 to 50 µmFinal particle size (emulsions)1 to 10 µmWeight0.1 kgScope of delivery1 x IKA S 25 N - 8 G dispersing tool (single tool)The drive is not included in the scope of delivery.Individual requirements and procurement serviceDrive unit, second tool or guidance on selecting the correct stator size: LT Laborhandel will put together the right combination for your sample volume via its procurement service.

With a stator diameter of 10 millimetres and a rotor diameter of 7.5 millimetres, the IKA S 25 N - 10 G is designed for small batches. It operates with volumes ranging from 1 to 100 millilitres, has a minimum immersion depth of 22 millimetres and has an installed length of 105 millimetres. It weighs 152 grams.Geometry and final finenessThere is a gap of 0.35 millimetres between the rotor and the stator. At the maximum permissible speed of 25,000 rpm, the rotor reaches a circumferential speed of 9.8 metres per second. IKA specifies the final fineness as 10 to 50 micrometres for suspensions and 1 to 10 micrometres for emulsions. The shaft runs in a PTFE split-ring bearing.Material and resistanceThe product comes into contact with PTFE and AISI 316L stainless steel. The unit is compatible with solvents and abrasive substances, and the pH range is from 2 to 13. Operating temperatures of up to 180 degrees Celsius are permissible for short periods, and sterilisation may be carried out using any method.Compatible drivesThe tool is compatible with the T 25 digital, T 25 easy clean digital, T 25 easy clean control and T 25 mini control drives. It is also compatible with the Solution Sets featuring the T 25 digital, T 25 easy clean digital and T 25 easy clean control.Typical applicationsDispersing and emulsifying very small volumes between 1 and 100 mlSuspensions with a final particle size of 10 to 50 µmEmulsions with a final particle size of 1 to 10 µmSamples containing solvents or within a pH range of 2 to 13Samples containing abrasive components, where the equipment is subsequently sterilisedTechnical detailsStator diameter10 mmRotor diameter7.5 mmStator/rotor air gap width0.35 mmProcessable volume (H2O)0.001 to 0.1 lMaximum permissible speed25,000 rpmMaximum peripheral speed9.8 m/sImmersion depth22 to 85 mmInstallation length105 mmMaterial in contact with the productPTFE, AISI 316LpH range2 to 13Suitable for solventsYesSuitable for abrasive substancesYesMax. operating temperature (short-term)180 °CSterilisabilityall methodsFinal particle size of suspensions10 to 50 µmFinal particle size (emulsions)1 to 10 µmWeight0.152 kgScope of delivery1 x IKA S 25 N - 10 G dispersing tool (single tool)The drive is not included in the scope of delivery.For larger batchesThe S 25 N - 18 G, with a stator diameter of 18 millimetres, is designed for volumes up to 1.5 l, whilst the S 25 N - 25 G - ST, with a stator diameter of 25 millimetres, is designed for volumes from 0.05 to 2 l. For those working with volumes below 50 millilitres, the S 10 N - 8 G ST is the ideal tool for T-10 drives.Selection guide: a comparisonToolStator / RotorOperating range (H2O)S 25 N - 10 G (this product)10 / 7.5 mm0.001 to 0.1 lS 25 N - 18 G18 / 12.7 mm0.010 to 1.5 lS 25 N - 25 G - ST25 / 20 mm0.05 to 2 lS 10 N, 8 G ST8 / 6.1 mm0.001 to 0.05 lIndividual requirements and procurement serviceLT Laborhandel can supply further tools from the S-25 series and the appropriate drives on request. If you are unsure which size is suitable for your vessel and sample volume, our procurement service will help you make the right choice.

The IKA S 25 N - 18 G is suitable for volumes ranging from 10 millilitres to 1.5 l. Stator diameter 18 millimetres, rotor diameter 12.7 millimetres, gap width 0.3 millimetres, shaft in a PTFE split-ring bearing. The tool belongs to the series for T-25 drives.Operating range and final finenessThe immersion depth ranges from 40 to 165 millimetres, and the installation length is 194 millimetres. At 25,000 rpm, the rotor reaches a circumferential speed of 16.6 metres per second. IKA specifies a final fineness of 10 to 50 micrometres for suspensions and 1 to 10 micrometres for emulsions. The tool weighs 0.4 kilograms.Bearing and durabilityThe shaft is guided in a PTFE split-ring bearing. The parts in contact with the product are made of PTFE and AISI 316L stainless steel. The tool is suitable for solvents and abrasive substances; the pH range is from 2 to 13. It can withstand temperatures of up to 180 degrees Celsius for short periods and may be sterilised using any method.Compatible drivesThe instrument is compatible with the T 25 digital, T 25 easy clean digital, T 25 easy clean control and T 25 mini control. It is also compatible with the T 25 digital, T 25 easy clean digital and T 25 easy clean control Solution Sets.Typical applicationsDispersing, emulsifying and suspending in volumes from 10 ml to 1.5 lEmulsions with a final particle size of 1 to 10 µmSuspensions with a final particle size of 10 to 50 µmMedia containing solvents or abrasive componentsApplications where the tool is sterilised after each runTechnical detailsStator diameter18 mmRotor diameter12.7 mmStator/rotor air gap width0.3 mmProcessable volume (H2O)0.010 to 1.5 lMaximum permissible speed25,000 rpmMaximum peripheral speed16.6 m/sImmersion depth40 to 165 mmInstallation length194 mmMaterial in contact with the productPTFE, AISI 316LpH range2 to 13Suitable for solventsYesSuitable for abrasive substancesYesMax. operating temperature (short-term)180 °CSterilisabilityall methodsFinal particle size of suspensions10 to 50 µmFinal particle size (emulsions)1 to 10 µmWeight0.4 kgScope of delivery1 x IKA S 25 N - 18 G dispersing tool (single tool)The drive is not included in the scope of delivery.Related sizes and variantsSmaller volumes of up to 100 millilitres can be processed using the S 25 N - 10 G. The S 25 KD - 18 G, which features ball bearings and a PTFE seal and allows for a vacuum down to 100 mbar. For a 25-millimetre stator diameter, the S 25 N - 25 G - ST is available.Selection guide: a comparisonToolStator / RotorOperating range (H2O)S 25 N - 18 G (this product)18 / 12.7 mm0.010 to 1.5 lS 25 N - 10 G10 / 7.5 mm0.001 to 0.1 lS 25 KD - 18 G18 / 12.7 mm0.01 to 1.5 lS 25 N - 25 G - ST25 / 20 mm0.05 to 2 lIndividual requirements and procurement serviceLT Laborhandel supplies T-25 series drives, as well as other tools and accessories, on request. Through our procurement service, we will work with you to determine which combination best suits your requirements.

The IKA S 25 N – 25 G dispersing tool represents a high-purity and extremely powerful fluid-mechanical system solution for the professional comminution, homogenisation and emulsification of sample media on a standard laboratory and analytical scale. This precision-manufactured rotor-stator system has been specifically validated for use with the globally recognised IKA dispersing drives of the ULTRA-TURRAX T 25 series. In demanding processes within pharmaceutical quality control, food analysis, cosmetics development or basic medical research, the rapid and reproducible disruption of sample structures is the primary criterion for generating homogeneous phases – in a way that is gentle on the material and time-efficient – for subsequent extractions or analytical steps. Fluid-mechanical comminution via proven rotor-stator geometry The process-engineering heart of the instrument is the universally applicable generator with a stator diameter of 25 mm. The perfectly matched geometry of the rotor and stator generates extremely high mechanical impact, cutting and shear forces within the transient shear gap, whilst simultaneously delivering excellent axial flow capacity. This mechanical kinetics is ideally designed to capture, disintegrate and homogenise lumpy media, agglomerates, powders or liquid-liquid phases in the medium to high viscosity range in a flash. The flow-optimised design of the generator head ensures continuous circulation of the medium, thereby reliably minimising thermal hotspots in the sample vessel. Material inertness and unrestricted sterilisability The materials science-based design of the dispersing rod is consistently optimised for maximum chemical resilience and absolute freedom from contamination. All functional elements in contact with the medium are made of high-purity, stainless steel grade 1.4404 (AISI 316L). An extremely low-friction and wear-resistant PTFE bearing system is used for the shaft. This combination of materials allows for continuous use in aggressive acids, alkalis and organic solvents. To ensure a sterile sampling environment and to completely rule out cross-contamination in multi-user operations, the entire device can be easily sterilised in an autoclave or cleaned gently with standard disinfectants. Process reliability and seamless laboratory integration The mechatronic system architecture guarantees safe and vibration-free power transmission even at maximum speeds of up to 25,000 revolutions per minute. The dispersing shaft can be quickly and tool-free secured in the T 25 digital or T 25 easy clean drive via the standardised connection. Thanks to the flexible immersion depth of up to 165 mm and the fluid-mechanical geometry, the tool is certified for a wide working volume ranging from 50 to 2,000 ml (based on water). This offers laboratory managers and users maximum flexibility when processing varying sample batches on a daily basis directly at the workstation. Technical details Metrology & Dispersion Specifications Tool type: Rotor-stator dispersing tool Model designation: S 25 N - 25 G Working range (volume range for H₂O): 50 to 2000 ml Generator type: G (universal / coarse) Maximum speed range: 25,000 rpm Maximum peripheral speed: approx. 11.8 m/s Design, materials & geometry Materials in contact with the medium: Stainless steel 1.4404 (AISI 316L), PTFE Stator diameter: 25 mm Rotor diameter: 17 mm Shear gap (distance): approx. 0.5 mm Minimum immersion depth: 40 mm Max. immersion depth: 165 mm Shaft diameter: 12 mm Overall length: 194 mm Operating conditions & cleaning Solvent compatibility: Yes (universal chemical resistance) Cleaning: Autoclavable (up to 121 degrees Celsius) and hot-air sterilisable (up to 180 degrees Celsius) Bearing type: PTFE plain bearing (shaft-guided, low-maintenance) Contents of delivery 1 x IKA S 25 N - 25 G dispersing tool (MPN: 0001713300) 1 x Operating instructions / Quality certificate Important note: The required dispersing drive (e.g. IKA ULTRA-TURRAX T 25 digital), stand fixtures, cross-sockets and sample vessels are not included in the standard scope of delivery and must be configured separately. Individual requirements & accessories To get the most out of the IKA S 25 N - 25 G tool, we recommend using it with the original ULTRA-TURRAX T 25 digital dispersing drive. To ensure a safe and vibration-free setup at your laboratory workstation, our range includes suitable bench stands (R 1826 or R 1827), robust cross-sockets (R 182) and practical vessel holders (RH 3). Should you wish to process samples requiring finer final homogenisation or in smaller volumes, we also offer alternative IKA generator heads (e.g. S 25 N – 18 G or special tools from the KS series). We stock original PTFE replacement bearings for the regular replacement of wear parts. Please use our technical procurement service to put together your complete homogenisation system.

The finest particles for the most demanding requirements: the IKA S 25 N – 25 F The IKA S 25 N – 25 F (MPN 0001713800) is a high-performance dispersing tool specially developed for applications where particularly fine particle sizes are required. Compatible with the drive units of the IKA T 25 series (e.g. T 25 digital, T 25 easy clean), this tool transforms your disperser into a precision instrument for demanding emulsification and suspension tasks. It covers a working range from 100 ml to 2,000 ml (H₂O), making it the ideal all-rounder for medium-sized laboratory batches. The ‘F’ makes all the difference: rotor-stator geometry for fine results At IKA, the designation “F” stands for “Fine”. In contrast to the standard version (“G”=“Coarse”), this tool features a specially designed rotor-stator geometry with narrower slots and smaller clearances. This results in higher shear rates and more intensive mechanical processing of the sample. The result is significantly smaller particle sizes and more stable emulsions. This makes the S 25 N - 25 F ideal for the production of creams and lotions in cosmetic development, the homogenisation of dairy products, or the fine grinding of fibrous samples that have already been pre-ground. PTFE bearings (“N”) for universal resistance The “N” in the model designation indicates the type of bearing used: high-quality PTFE (polytetrafluoroethylene) is employed here. PTFE bearings are characterised by their excellent chemical resistance to almost all acids, alkalis and solvents. They also minimise heat build-up in the bearing area. Note: Tools with PTFE bearings are ideal for liquid applications, but must never be run dry, as the bearing is lubricated and cooled by the medium. Running the bearing dry would destroy it immediately. Material Quality and Hygiene All parts in contact with the medium are made from high-quality stainless steel (AISI 316L). This material is not only extremely corrosion-resistant but also meets the high hygiene requirements of the pharmaceutical and food industries. The tool is designed for operating temperatures of up to 180 °C and can be easily dismantled for cleaning and sterilisation. It is compatible with all standard sterilisation methods – including autoclaving (wet sterilisation) – which guarantees sterile operation in microbiological applications. Easy handling and maintenance Thanks to its standardised shank design, the S 25 N - 25 F can be mounted quickly and securely onto T 25 drives. Cleaning is straightforward thanks to its well-thought-out design: the tool can be dismantled into its individual parts in just a few simple steps to remove all residues and reliably prevent cross-contamination. Technical data Compatible drives: IKA T 25 digital, T 25 easy clean (digital/control) Working range (H₂O): 100 – 2,000 ml Stator diameter: 25 mm Rotor diameter: 18 mm Version: F = Fine Bearing: N = PTFE bearing Material (in contact with the medium): Stainless steel (AISI 316L), PTFE Max. temperature: 180 °C Sterilisation methods: All (including autoclaving) Generator gap: 0.5 mm Immersion depth: 40 – 165 mm Screw-in shaft: Yes Contents 1 x IKA S 25 N - 25 F dispersing tool Operating instructions (often included in the drive manual or supplied separately) Individual requirements & accessories Do you require tools for larger volumes, cutting tools (S 25 N – 25 G) for coarse pre-shredding, or special ceramic seals (‘K’ series) for vacuum applications? We stock the entire IKA tool range. Please contact our procurement service for assistance in selecting the right tool.

The specialist for fibrous samples: IKA S 25 N - 8 G - ST dispersing tool The IKA S 25 N - 8 G - ST dispersing tool (MPN 0004446900) is a high-performance rotor-stator assembly for the IKA T 25 dispersing drives (e.g. T 25 digital, T 25 easy clean). Whilst standard tools often reach their limits and become blocked when grinding tissue or plant material, this model really comes into its own thanks to its special geometry. The secret: the sawtooth geometry (“ST”) The abbreviation “ST” stands for saw-tooth. The stator of this tool is fitted with sharp saw-tooth edges. Cutting & Tearing: Before the sample is drawn into the actual shearing gap between the rotor and stator, the saw teeth cut through tough, fibrous structures. No clogging: Muscle tissue, skin, plant fibres or tough food samples (e.g. meat) do not wrap round the shaft, but are efficiently shredded. High efficiency: You often save yourself the trouble of manually cutting up the sample with a scalpel beforehand. Perfect for small volumes (“8 G”) With a stator diameter of just 8 mm, this tool is designed for small sample volumes. Volume range: It homogenises volumes from 1 ml to 50 ml (based on water). Ideal for test tubes, Eppendorf tubes or small beakers. Coarse (“G”): The slot width is designed for primary, coarse fragmentation of solids in liquids, but produces fine emulsions and suspensions thanks to the extremely high speeds (up to 25,000 rpm). Durability and hygiene (“N”) The ‘N’ in the designation stands for the tried-and-tested PTFE bearing. Materials: All parts in contact with the medium are made of high-quality stainless steel (AISI 316L) and chemically highly resistant PTFE. Cleaning: The unit can be easily dismantled into its individual parts (rotor, stator, shaft, bearing) for cleaning without the need for special tools. Sterilisation: It is fully autoclavable (121 °C), which prevents cross-contamination in biological and medical applications. Areas of application Biology & Medicine: Homogenisation of fibrous muscle tissue, skin, liver or cartilage for DNA/RNA extraction. Food analysis: Grinding meat, vegetable or fruit samples. Agricultural research: Digestion of leaves, stems and roots. Pharmaceuticals: Grinding of coated tablets or tablets in solvents. Technical data Model: S 25 N - 8 G - ST Compatible with drives: IKA T 25 digital, T 25 easy clean digital/control Working range (H₂O volume): 1 – 50 ml Stator diameter: 8 mm Rotor diameter: 6.1 mm Gap between rotor and stator: 0.25 mm Maximum permissible speed: 25,000 rpm Immersion depth: 27 – 85 mm Materials in contact with the medium: stainless steel (AISI 316L), PTFE Maximum permissible operating temperature: 180 °C Sterilisation methods: Autoclavable (121 °C) Overall length: 108 mm Weight: approx. 0.1 kg Contents of delivery 1 x IKA dispersing tool S 25 N - 8 G - ST (Note: The T 25 drive motor is not included!) Custom requirements & accessories Is the PTFE bearing worn out after many hours of use? We offer the appropriate spare parts kit. Do you also need a tool for larger volumes (e.g. S 25 N - 18 G) or the matching T 25 drive motor? Please contact our procurement service.

Effective on tough samples: IKA S 25 N - 10 G - ST dispersing tool The IKA S 25 N - 10 G - ST dispersing tool (MPN 0004447100) is the solution for laboratories that regularly struggle with the homogenisation of viscous, fibrous or difficult-to-process materials. Designed as a high-performance attachment for the tried-and-tested IKA T 25 dispersing drives (e.g. T 25 digital), this tool has been specifically developed to prevent the dreaded clogging of the rotor. The innovation: sawtooth geometry (“ST”) What makes this tool special lies in the stator, which features an aggressive saw-tooth contour. Pre-cutting effect: Before the sample enters the actual shear gap, the sharp edges tear and cut through the tough structures. Continuous workflow: The wrapping of the shaft by tendons, plant fibres or polymer strands is effectively prevented. You can digest your samples in a fraction of the time, often without having to laboriously chop them up with a scalpel beforehand. The happy medium (“10 G”) With a stator diameter of 10 mm, this tool bridges the gap between micro-attachments and large standard tools. Volume range: It homogenises volumes from 1 ml to 100 ml (H₂O). This makes it the perfect all-rounder for centrifuge tubes (e.g. 15 ml or 50 ml Falcon tubes) and small beakers. Coarse (“G”): The slot width ensures high throughput and rapid primary comminution. With speeds of up to 25,000 rpm, you can still achieve very fine particle sizes. High-quality materials (“N”) The tool features a chemically highly resistant PTFE bearing (“N”). Easy to clean: After use, the dispersing tool can be dismantled into its individual parts in just a few simple steps for manual cleaning or sterilisation. Hygienic: All components in contact with the medium are made of high-quality stainless steel (AISI 316L) and PTFE. It is fully autoclavable at 121 °C. Areas of application Life sciences: Digestion of muscle tissue, skin or plant material for nucleic acid extraction. Food inspection: Homogenisation of fibrous meat or tough vegetables. Materials testing: Grinding of soft plastics, textile fibres or paper. Pharmaceuticals: Dissolving capsules or tablets in liquid media. Technical data Model: S 25 N - 10 G - ST Suitable for drives: IKA T 25 (digital, easy clean) Operating range (H₂O volume): 1 – 100 ml Stator diameter: 10 mm Rotor diameter: 7.5 mm Maximum permissible speed: 25,000 rpm Immersion depth: 22 – 85 mm Materials in contact with the medium: stainless steel (AISI 316L), PTFE Maximum permissible operating temperature: 180 °C Sterilisation methods: Autoclavable (121 °C) Overall length: 105 mm Weight: approx. 0.1 kg Contents of delivery 1 x IKA S 25 N - 10 G - ST dispersing tool (Note: The T 25 drive motor is not included and must be purchased separately!) Custom requirements & accessories Are you looking for the right stand and a cross-coupling to securely mount your IKA T 25 drive? Or do you need replacement PTFE bearings for this tool to prevent downtime in the laboratory? Please contact our procurement service.

The cutting specialist for fibrous media: IKA S 25 N - 18 G - ST With the S 25 N - 18 G - ST dispersing tool (MPN 0004447300), you can expand the range of applications for your IKA T 25 disperser (e.g. T 25 digital or T 25 easy clean) to include a crucial capability: the effective comminution of fibrous and viscous structures. Whilst conventional rotor-stator systems often become blocked with long-fibre samples or merely wrap the fibres around the rotor, this specialised tool reliably cuts them into small pieces. It covers a working volume range of 10 ml to 1,500 ml (H₂O) and is therefore ideal for sample preparation in biology, food chemistry or environmental analysis. Sawtooth technology (“ST”) for maximum cutting efficiency The abbreviation “ST” stands for “Saw Tooth”. If you look closely at the generator head, you can see its unique geometry: the stator ring is not only slotted but also features a serrated cutting edge. In combination with the high-speed rotating blade rotor, the system acts like a pair of extremely efficient scissors. This design makes the tool ideal for demanding tasks such as: Tissue disruption: shredding of muscle tissue, tendons or skin in medical diagnostics. Plant samples: homogenisation of leaves, roots or fibrous vegetables (e.g. asparagus, leeks). Material analysis: Processing of paper, pulp or textile samples. Durable and chemically resistant thanks to PTFE bearing (“N”) Like all “N” tools in the S 25 series, this model is also fitted with a high-quality PTFE bearing. PTFE (Teflon) is chemically almost inert and easily withstands aggressive acids, bases and solvents. This makes the tool universally applicable, regardless of the dispersing medium. Important note: As PTFE bearings require the medium for lubrication and cooling, the tool must not be allowed to run dry. Running dry would lead to immediate overheating and destruction of the bearings. Pharmaceutical-grade stainless steel The shaft and the generator elements are made of high-quality stainless steel (AISI 316L). This material is not only robust and rust-resistant, but also meets all hygiene requirements for use in the laboratory. The tool is designed for temperatures up to 180 °C and can be completely dismantled for cleaning. For sterile applications, the entire tool can be autoclaved (wet sterilisation) or sterilised with hot air, which effectively prevents cross-contamination. Easy replacement and cleaning Thanks to the standardised coupling, the S 25 N - 18 G - ST can be fitted to all drives in the T 25 range in a matter of seconds. It can be dismantled for cleaning without the need for special tools, ensuring that fibre residues can be safely removed from the cutting head. Technical data Compatible drives: IKA T 25 digital, T 25 easy clean (digital/control) Working range (H₂O): 10 – 1,500 ml Stator diameter: 18 mm Rotor diameter: 12.7 mm Design: G - ST (coarse with sawtooth) Bearing: N=PTFE bearing Material (in contact with the medium): Stainless steel (AISI 316L), PTFE Max. temperature: 180 °C Generator gap: 0.5 mm Immersion depth: 40 – 165 mm Sterilisation: All methods (fully autoclavable) Special feature: Cutting head for fibrous samples Contents of delivery 1 x IKA dispersing tool S 25 N - 18 G - ST Operating instructions (included with the drive or supplied separately) Individual requirements & accessories If you need to process extremely hard samples (e.g. tablets, bones), we may recommend using a pre-processing mill (e.g. IKA Tube Mill) instead of the cutting tools. For standard emulsions without fibres, it is better to use the classic “G” or “F” version without a serrated edge. Please contact our procurement service for application advice.

The S 25 N - 25 G - ST (0004447500) is an ST model. According to IKA, ST tools are used for the comminution of fibrous samples. The tool, with a 25 mm stator diameter, processes sample volumes from 50 to 2,000 ml and is compatible with the T 25 digital and T 25 easy clean digital or control drives.Geometry and speedThe rotor and stator have diameters of 20 and 25 mm, respectively, with a gap of 0.5 mm between them. At the maximum permissible speed of 25,000 rpm, this results in a maximum circumferential speed of 26.2 m/s. The final fineness ranges from 15 to 50 µm for suspensions and from 1 to 10 µm for emulsions. The installation length is 194 mm, and the immersion depth ranges from 40 to 165 mm.Bearing and MaterialThe shaft is mounted in a PTFE split-ring bearing. PTFE and AISI 316L come into contact with the medium. The tool is suitable for solvents and abrasive substances and operates within a pH range of 2 to 13. Operating temperatures of up to 180 °C are permissible for short periods; it can be sterilised using all methods.Choice within the S-25 rangeThe same stator size is also available with a ball bearing, PTFE seal and FFKM O-ring as the S 25 KD - 25 G ST, which additionally permits a vacuum down to 100 mbar and is designed for temperatures up to 150 °C. For vacuum down to 1 mbar and pressure up to 6 bar, the S 25 KV, 25 G is suitable. Smaller volumes of up to 50 ml are handled by the S 10 N, 8 G ST on the T 10.Typical applicationsGrinding of fibrous samples in volumes ranging from 50 to 2,000 mlDispersing and emulsifying on a laboratory scale up to 2 lWorking with solvents and abrasive solidsProcessing of the instrument by sterilisation using all methodsTechnical detailsWorking range (H2O)0.05 to 2 lStator diameter25 mmRotor diameter20 mmStator/rotor air gap0.5 mmMaximum permissible speed25,000 rpmMaximum circumferential speed26.2 m/sPenetration depth40 to 165 mmInstallation length194 mmBearing and sealShaft in PTFE split-ring bearingMaterials in contact with the productPTFE, AISI 316LpH range2 to 13Suitable for solventsYesSuitable for abrasive substancesYesMax. operating temperature180 °CSterilisabilityall methodsFinal particle size of suspensions15 to 50 µmFinal particle size (emulsions)1 to 10 µmWeight0.4138 kgScope of delivery1 x IKA S 25 N - 25 G - ST dispersing tool (single tool)The drive is not included in the Scope of delivery. For complete set-ups, IKA offers the T 25 digital Solution.Individual requirements and procurement serviceIf you require the tool to be supplied together with the appropriate drive unit, do you need a second tool for changing, or guidance on selecting the correct geometry? LT Laborhandel will put together the right combination for your application via its procurement service.

The S 25 KV - 18 G (0002348000) operates within a range of 10 to 1,500 ml and features an 18 mm stator and a 12.7 mm rotor. It has a mechanical seal, is rated for short-term operation up to 220 °C and runs on T-25 drives.Seal and vacuumThe shaft runs in a ball bearing with a mechanical seal; the counter ring and sliding ring are made of SiC, whilst the O-rings are made of Kalrez. The unit is designed for operation under vacuum down to 1 mbar and can withstand pressures of up to 6 bar. Materials in contact with the product are FFPM, SiC, AISI 316L and AISI 302. It is FDA-compliant, suitable for use with solvents and can be sterilised using all methods.Clearance, speed and finenessThe gap is 0.25 mm. At 25,000 rpm, a speed of 16.6 m/s is achieved at the rotor circumference. The final particle size ranges from 10 to 50 µm for suspensions and from 1 to 10 µm for emulsions. The tool can be immersed to a depth of 40 to 225 mm; the installation length is 270 mm and the weight is 0.5514 kg.Typical applicationsDispersing and emulsifying small batches of 10 to 1,500 mlOperations under vacuum down to 1 mbarProcesses at pressures up to 6 barBatches containing solvents in the pH range 2 to 13Processes involving short-term temperatures of up to 220 °CEmulsions with final particle sizes of 1 to 10 µmTechnical detailsProcessable volume (H2O)0.01 to 1.5 lStator diameter18 mmRotor diameter12.7 mmStator/rotor gap width0.25 mmMax. permissible speed25,000 rpmMaximum circumferential speed16.6 m/sPenetration depth40 to 225 mmInstallation length270 mmBearings and sealsBall bearing, mechanical seal (SiC, Kalrez O-rings)Materials in contact with the productFFPM, SiC, AISI 316L, AISI 302pH range2 to 13Suitable for solventsYesMax. operating temperature220 °C (for short periods)SterilisabilityAll methodsVacuum1 mbarMax. pressure6 barFinal fineness of suspensions10 to 50 µmFinal fineness of emulsions1 to 10 µmFDA complianceYesWeight0.5514 kgScope of delivery1 x IKA S 25 KV - 18 G dispersing tool (single tool)The drive unit (T 25 easy clean digital, T 25 easy clean control, T 25 digital or T 25 mini control) is not included in the Scope of delivery.Larger rotor or shorter designWith a 25 mm stator, 17 mm rotor and a capacity of 0.05 to 2 l, the S 25 KV - 25 G operates with the same installation length of 270 mm. The S 25 KD - 18 G has the same stator and rotor dimensions as this tool (18 and 12.7 mm), but is shorter, with an installation length of 194 mm and an immersion depth of 40 to 165 mm. It is specified for temperatures up to 150 °C and vacuum down to 100 mbar.Individual requirements and procurement serviceLT Laborhandel can source the appropriate T-25 drives and other tools on request. The procurement service assists with selecting the correct geometry.

The S 25 KV - 25 G (0002466900) is designed for operation under vacuum and can be used at temperatures of up to 220 °C for short periods. It features ball bearings and a mechanical seal; the specifications are a vacuum of 1 mbar and a maximum pressure of 6 bar. The working range is 50 to 2,000 ml.Sealing and Bearing ArrangementThe unit is supported by ball bearings and a mechanical seal. The counter ring and sliding ring are made of SiC, whilst Kalrez seals are used as O-rings. Materials in contact with the product are FFPM, SiC, AISI 316L and AISI 302. The unit is suitable for use with solvents and can be sterilised using all methods.Dimensions and process parametersThe stator has a diameter of 25 mm, the rotor 17 mm; the gap width is 0.5 mm. Speeds of up to 25,000 rpm are permitted, resulting in a maximum circumferential speed of 22.2 m/s. The immersion depth ranges from 40 to 225 mm with an installation length of 270 mm, allowing access to deeper vessels or reactors. The final fineness ranges from 15 to 50 µm for suspensions and 1 to 10 µm for emulsions. The tool weighs 0.6 kg.Drives and related modelsSuitable drives include the T 25 digital, T 25 easy clean digital and control, and the T 25 digital LR. It is also designed for use with the LR 1000 basic and control systems and for several LR-2.ST laboratory reactors. The finer version (suspensions 5 to 25 µm, emulsions 1 to 5 µm, 100 to 2,000 ml) is called the S 25 KV - 25 F. The S 25 KV - 25 G - IL is available for in-line operation on the UTL 25. For vacuum down to 100 mbar and operating temperatures up to 150 °C, the S 25 KD - 25 G ST is also available.Typical applicationsDispersing under vacuum down to 1 mbarOperating at pressures up to 6 barProcessing at temperatures up to 220 °C for short periodsUse in LR-series laboratory reactor systemsSolvent-based media in the pH range 2 to 13Technical detailsOperating range (H2O)0.05 to 2 lStator diameter25 mmRotor diameter17 mmStator/rotor gap width0.5 mmMax. permissible speed25,000 rpmMaximum circumferential speed22.2 m/sPenetration depth40 to 225 mmInstallation length270 mmBearing and sealBall bearing with mechanical seal (SiC), Kalrez O-ringsMaterials in contact with the productFFPM, SiC, AISI 316L, AISI 302pH range2 to 13Suitable for solventsYesMax. operating temperature220 °CSterilisabilityall methodsVacuum1 mbarMax. pressure6 barFinal fineness of suspensions15 to 50 µmFinal fineness of emulsions1 to 10 µmWeight0.6 kgScope of delivery1 x IKA S 25 KV - 25 G dispersing tool (single tool)The drive or reactor system is not included in the Scope of delivery.Individual requirements and procurement serviceIf you require the tool to be supplied together with the appropriate drive unit, do you need a second tool for changing, or guidance on selecting the correct geometry? Through its procurement service, LT Laborhandel will put together the right combination for your application.

The IKA S 25 KV - 25 F is a vacuum pump for T-25 drives and operates in volumes ranging from 100 millilitres to 2 l. It is mounted on a ball bearing with a mechanical seal; the stator and rotor are made of silicon carbide, whilst Kalrez rings are used as O-rings. This allows for a vacuum of up to 1 mbar and a pressure of up to 6 bar.Geometry and lengthThe stator diameter is 25 millimetres, the rotor measures 18 millimetres, and the gap is 0.5 millimetres. The installation length is 270 millimetres, and the immersion depth ranges from 40 to 225 millimetres. At 25,000 rpm, the peripheral speed is 23.6 metres per second. The final particle size is 5 to 25 micrometres for suspensions and 1 to 5 micrometres for emulsions.Temperature and mediaMaterials in contact with the product are FFPM, SiC, AISI 316L and AISI 302. Operating temperatures of up to 220 degrees Celsius are permissible for short periods; the pH range is from 2 to 13. Solvents are permitted, and sterilisation may be carried out using any method. The tool weighs 0.622 kilograms.Drives and reactorsIt is compatible with the T 25 digital, T 25 easy clean digital and T 25 easy clean control drives, as well as the LR 1000 basic and control systems and several versions of the LR-2.ST laboratory reactor.Typical applicationsDispersing under vacuum down to 1 mbarProcesses under positive pressure up to 6 barEmulsions with a final particle size of 1 to 5 µmUse in laboratory reactors of the LR 1000 and LR-2.ST seriesBatches using solvents up to 220 °C for short periodsTechnical detailsStator diameter25 mmRotor diameter18 mmStator/rotor air gap width0.5 mmProcessable volume (H2O)0.1 to 2 lMaximum permissible speed25,000 rpmMaximum peripheral speed23.6 m/sImmersion depth40 to 225 mmInstallation length270 mmBearingBall bearing with mechanical seal (SiC, Kalrez)Material in contact with the productFFPM, SiC, AISI 316L, AISI 302pH range2 to 13Suitable for solventsYesMax. operating temperature (short-term)220 °CVacuum1 mbarMax. pressure6 barSterilisabilityall methodsFinal fineness of suspensions5 to 25 µmFinal particle size (emulsions)1 to 5 µmWeight0.622 kgScope of delivery1 x IKA S 25 KV - 25 F dispersing tool (single tool)The drive is not included in the scope of delivery.Related toolsThe S 25 KV - 25 G is available with a rotor diameter of 17 millimetres and a working range of 50 millilitres to 2 l. For in-line operation on the UTL 25 digital, the S 25 KV - 25 G - IL is available.Selection guide: a comparisonToolStator / RotorWorking range (H2O)S 25 KV - 25 F (this product)25 / 18 mm0.1 to 2 lS 25 KV, 25 G25 / 17 mm0.05 to 2 lS 25 KV - 25 G - IL25 / 17 mmIn-line operationIndividual requirements and procurement serviceLT Laborhandel can source suitable drives, reactors and other vacuum equipment on request. The procurement service will assist with the selection.

The S 25 KV - 2802 (0020008825) dissolver agitator shaft has a rotor with a diameter of 30 mm and achieves a peripheral speed of 39.3 m/s at 25,000 rpm. IKA describes it as a high-speed agitator for intensive mixing and the breaking up of agglomerates. It is suitable for volumes of 0.1 to 2 l and is compatible with T-25 drives.Mechanical seal and materialsThe shaft is mounted in a ball bearing with a mechanical seal. The counter ring and seal ring are made of SiC, whilst the O-rings are made of Kalrez. Materials in contact with the product include FFPM, SiC, AISI 316L and AISI 302; the unit is FDA-compliant. It may be used under vacuum down to 1 mbar and at pressures up to 6 bar.Operating limitsThe pH range is from 2 to 13; solvents are permitted. Temperatures of up to 220 °C are permitted for short periods; sterilisation may be carried out using any method. The immersion depth is 40 to 225 mm, the installation length is 270 mm, and the weight is 0.56 kg.Typical applicationsIntensive mixing in high-speed agitator operation for batches of 0.1 to 2 lBreaking up agglomeratesOperations under vacuum down to 1 mbar or pressure up to 6 barBatches containing solvents in the pH range 2 to 13Processes involving short-term temperatures of up to 220 °CBatches where the tool is sterilised between runsTechnical detailsProcessable volume (H2O)0.1 to 2 lStator diameter39 mmRotor diameter30 mmMax. permissible speed25,000 rpmMax. peripheral speed39.3 m/sPenetration depth40 to 225 mmInstallation length270 mmBearings and sealsBall bearing, mechanical seal (SiC, Kalrez O-rings)Materials in contact with the productFFPM, SiC, AISI 316L, AISI 302pH range2 to 13Suitable for solventsYesMax. operating temperature220 °C (for short periods)Sterilisabilityall methodsVacuum1 mbarMax. pressure6 barFDA complianceYesWeight0.56 kgScope of delivery1 x IKA S 25 KV - 2802 dissolver stirrer shaft (single tool)The drive unit (T 25 easy clean digital, T 25 easy clean control, T 25 digital or T 25 mini control) is not included in the Scope of delivery.Position within the KV-25 seriesThe S 25 KV - 25 F has the same installation length of 270 mm and the same immersion depth of 40 to 225 mm, but only an 18 mm rotor diameter and a circumferential speed of 23.6 m/s. It specifies a final fineness of 5 to 25 µm for suspensions. With a 17 mm rotor and 22.2 m/s, the S 25 KV - 25 G operates (0.05 to 2 l, 15 to 50 µm for suspensions). All three tools feature a SiC mechanical seal, can operate under vacuum down to 1 mbar and under pressure up to 6 bar, and are constructed from FFPM, SiC, AISI 316L and AISI 302. Differences lie in the design (dissolver agitator shaft versus dispersing tool) and in the diameters of the stator and rotor.Individual requirements and procurement serviceLT Laborhandel can source the appropriate T-25 drives and other tools on request. Through the procurement service, the selection can be tailored to your specific application.

The IKA S 25 KD - 18 G has ball bearings, whilst the S 25 N - 18 G, which is the same size, has a PTFE split-ring bearing. The shaft runs in the ball bearing with a PTFE seal and an FFKM O-ring, which allows the tool to operate under a vacuum of up to 100 mbar. The stator, rotor and gap (18 mm, 12.7 mm, 0.3 mm) correspond to those of the plain bearing model.Vacuum, temperature and mediaThe working range is 10 millilitres to 1.5 l, with an immersion depth of 40 to 165 millimetres and an installation length of 194 millimetres. Speeds of up to 25,000 rpm are permitted, corresponding to a circumferential speed of 16.6 metres per second. The maximum operating temperature is 150 degrees Celsius, the pH range is 2 to 13, and solvents are permitted. IKA specifies the final fineness as 10 to 50 micrometres for suspensions and 1 to 10 micrometres for emulsions.Materials and SterilisationMaterials in contact with the product are AISI 316L, PTFE and FFKM. The unit is FDA-compliant. It may be sterilised using all methods except hot air. It weighs 336 grams.DrivesSuitable drives are the T 25 digital, T 25 easy clean digital, T 25 easy clean control and T 25 mini control.Typical applicationsDispersing and emulsifying in volumes from 10 ml to 1.5 lWorking under vacuum down to 100 mbarSolutions containing solvents in the pH range 2 to 13Applications where the equipment must comply with FDA requirementsProcesses with operating temperatures up to 150 °CTechnical detailsStator diameter18 mmRotor diameter12.7 mmStator/rotor air gap width0.3 mmProcessable volume (H2O)0.01 to 1.5 lRecommended working range10 to 1,500 mlMaximum permissible speed25,000 rpmMaximum peripheral speed16.6 m/sImmersion depth40 to 165 mmInstallation length194 mmBearing type and sealBall bearing with PTFE seal and FFKM O-ringMaterial in contact with the productAISI 316L, PTFE, FFKMpH range2 to 13Suitable for solventsYesMax. operating temperature150 °CVacuum100 mbarSterilisabilityall methods except hot airFinal particle size of suspensions10 to 50 µmFinal particle size of emulsions1 to 10 µmFDA complianceYesWeight0.336 kgScope of delivery1 x IKA S 25 KD - 18 G dispersing tool (single tool)The drive unit is not included in the scope of delivery.Same size, different versionWith a PTFE split ring bearing instead of a ball bearing, the same size is available as the S 25 N - 18 G. As an ST version with a rotor diameter of 13.4 millimetres and a narrower gap of 0.25 millimetres, the S 25 KD - 18 G ST is available. The 25-millimetre version with ball bearings is the S 25 KD - 25 G.Selection guide: a comparisonToolStator / RotorOperating range (H2O)S 25 KD - 18 G (this product)18 / 12.7 mm0.01 to 1.5 lS 25 N - 18 G18 / 12.7 mm0.010 to 1.5 lS 25 KD - 18 G ST18 / 13.4 mm0.01 to 1.5 lS 25 KD - 25 G25 / 17 mm0.05 to 2 lIndividual requirements and procurement serviceLT Laborhandel can source suitable drives and other tools from the S-25 range on request. The procurement service is available to assist with any queries regarding selection.

The IKA S 25 KD - 25 G has a working range of up to two litres. It has a stator diameter of 25 millimetres, a rotor diameter of 17 millimetres and a gap of 0.5 millimetres, and can operate with volumes as low as 50 millilitres.Ball bearings and vacuumThe shaft runs in a ball bearing with a PTFE seal and an FFKM O-ring. This makes the unit suitable for vacuum conditions down to 100 mbar. The operating temperature may reach up to 150 degrees Celsius; the pH range is from 2 to 13, and solvents are permitted.Dimensions and performance dataThe tool has an immersion depth of 40 to 165 millimetres and is 194 millimetres long. At 25,000 rpm, the rotor reaches a circumferential speed of 22.2 metres per second. IKA specifies a final particle size of 15 to 50 micrometres for suspensions and 1 to 10 micrometres for emulsions. Materials in contact with the product include AISI 316L, PTFE and FFKM; the tool is FDA-compliant and weighs 351 grams.DrivesThe S 25 KD - 25 G is designed for use with the T 25 digital, T 25 easy clean digital and T 25 easy clean control. It may be sterilised using any method except hot air.Typical applicationsDispersing and emulsifying in volumes from 50 ml to 2 lVacuum work up to 100 mbarEmulsions with a final particle size of 1 to 10 µmMedia containing solvents in the pH range 2 to 13Applications requiring FDA-compliant tooling materialsTechnical detailsStator diameter25 mmRotor diameter17 mmStator/rotor air gap width0.5 mmProcessable volume (H2O)0.05 to 2 lRecommended working range50 to 2,000 mlMaximum permissible speed25,000 rpmMaximum peripheral speed22.2 m/sImmersion depth40 to 165 mmInstallation length194 mmBearing type and sealBall bearing with PTFE seal and FFKM O-ringMaterial in contact with the productAISI 316L, PTFE, FFKMpH range2 to 13Suitable for solventsYesMax. operating temperature150 °CVacuum100 mbarSterilisabilityall methods except hot airFinal particle size of suspensions15 to 50 µmFinal particle size of emulsions1 to 10 µmFDA complianceYesWeight0.3509 kgScope of delivery1 x IKA S 25 KD - 25 G dispersing tool (single tool)The drive is not included in the scope of delivery.Related toolsThe smaller version with ball bearings is the S 25 KD - 18 G, suitable for 10 to 1,500 millilitres. The S 25 KD - 25 G ST is available as an ST version with a 20-millimetre rotor diameter. If you require a vacuum down to 1 mbar and a mechanical seal, take a look at the S 25 KV - 25 G.Selection guide: a comparisonToolStator / RotorOperating range (H2O)S 25 KD - 25 G (this product)25 / 17 mm0.05 to 2 lS 25 KD - 18 G18 / 12.7 mm0.01 to 1.5 lS 25 KD - 25 G ST25 / 20 mm0.05 to 2 lS 25 KV - 25 G25 / 17 mm0.05 to 2 lIndividual requirements and procurement serviceLT Laborhandel can source drives, stands and other tools from the S-25 series on request. The procurement service can assist with selection.

The S 25 KD - 18 G ST (0020002973) is the KD tool with a stator diameter of 18 mm. It operates in increments from 10 to 1,500 ml, has a gap width of just 0.25 mm and is FDA-compliant. The shaft is mounted in a ball bearing with a PTFE seal and an FFKM O-ring; the tool can be operated under vacuum.Narrow gap, small rotor surface areaThe rotor has a diameter of 13.4 mm. At 25,000 rpm, the maximum permitted speed, the peripheral speed reaches 17.5 m/s. The final fineness ranges from 10 to 50 µm for suspensions and from 1 to 10 µm for emulsions. The immersion depth is 40 to 165 mm, and the installation length is 194 mm.Material, vacuum and temperatureAISI 316L, PTFE and FFPM come into contact with the medium. The tool is suitable for solvents and operates within a pH range of 2 to 13. A vacuum of 100 mbar is permitted; the maximum operating temperature is 150 °C. It can be sterilised using all methods except hot air; the ball bearing is excluded from this.With and without STThe tool is compatible with all four drives in the T-25 series specified by IKA: T 25 digital, T 25 easy clean digital and control, and T 25 mini control. The version without the ST designation is called the S 25 KD - 18 G; the S 25 N - 18 G has the same stator diameter but is made from PTFE and AISI 316L and is rated up to 180 °C. If you require a 25 mm stator, you will find it in the S 25 KD - 25 G ST.Typical applicationsDispersing and emulsifying from 10 to 1,500 mlWorking under vacuumSolutions containing solvents in the pH range 2 to 13Applications where FDA compliance of the equipment is requiredTechnical detailsWorking range (H2O)0.01 to 1.5 lStator diameter18 mmRotor diameter13.4 mmStator/rotor air gap0.25 mmMax. permissible speed25,000 rpmMaximum circumferential speed17.5 m/sPenetration depth40 to 165 mmInstallation length194 mmBearing and sealBall bearing with PTFE seal and FFKM O-ringMaterials in contact with the productAISI 316L, PTFE, FFPMpH range2 to 13Suitable for solventsYesMax. operating temperature150 °CSterilisabilityAll methods except hot airVacuum100 mbarFinal particle size of suspensions10 to 50 µmFinal particle size of emulsions1 to 10 µmFDA complianceYesWeight0.3785 kgScope of delivery1 x IKA S 25 KD - 18 G ST dispersing tool (single tool)The drive unit is not included in the scope of delivery.Individual requirements and procurement serviceIf you require the tool to be supplied together with the appropriate drive unit, do you need a second tool for changing, or assistance in choosing the correct geometry? LT Laborhandel will put together the right combination for your application via its procurement service.

The S 25 KD - 25 G ST (0020002974) has an installation length of 194 mm and weighs 0.4 kg. The stator measures 25 mm, the rotor 20 mm and the air gap 0.5 mm. This enables the tool to achieve a circumferential speed of up to 26.2 m/s at 25,000 rpm and process volumes of 50 to 2,000 ml.Shredding specificationsThe final particle size is between 15 and 50 µm for suspensions and between 1 and 10 µm for emulsions. The immersion depth ranges from 40 to 165 mm. The stator, rotor and gap (25 mm, 20 mm, 0.5 mm) correspond to the S 25 N, 25 G, ST; the bearings, materials and temperature limits differ.Ball bearing instead of PTFE split ringHere, the shaft runs in a ball bearing with a PTFE seal and an FFKM O-ring. This enables operation under vacuum (specified at 100 mbar); the maximum operating temperature is 150 °C. Materials in contact with the product are AISI 316L, PTFE and FFPM; the pH range is 2 to 13, and solvents are permitted. The tool can be sterilised using all methods except hot air, with the exception of the ball bearing. IKA also states FDA compliance.Drives and variantsSuitable models include the T 25 digital, as well as the T 25 easy clean digital and control. Without the ‘ST’ designation, the S 25 KD - 25 G is available with a 17 mm rotor and a circumferential speed of up to 22.2 m/s. Those working with an 18 mm stator should opt for the S 25 KD - 18 G ST.Typical applicationsDispersing and emulsifying volumes from 50 to 2,000 mlWork under vacuumSolvent-based processesApplications requiring the instrument to comply with FDA regulationsTechnical detailsWorking range (H2O)0.05 to 2 lStator diameter25 mmRotor diameter20 mmStator/rotor air gap0.5 mmMaximum permissible speed25,000 rpmMaximum circumferential speed26.2 m/sPenetration depth40 to 165 mmInstallation length194 mmBearing and sealBall bearing with PTFE seal and FFKM O-ringMaterials in contact with the productAISI 316L, PTFE, FFPMpH range2 to 13Suitable for solventsYesMax. operating temperature150 °CSterilisabilityAll methods except hot airVacuum100 mbarFinal particle size of suspensions15 to 50 µmFinal particle size of emulsions1 to 10 µmFDA complianceYesWeight0.4 kgScope of delivery1 x IKA S 25 KD - 25 G ST dispersing tool (single tool)The drive unit is not included in the scope of delivery.Individual requirements and procurement serviceIf you require the tool to be supplied together with the appropriate drive unit, do you need a second tool for changing, or assistance in choosing the correct geometry? Through its procurement service, LT Laborhandel will put together the right combination for your application.

With an installation length of 194 mm and a penetration depth of 40 to 165 mm, the S 25 KD - 25 F (0020002975) is shorter than the S-25 tools in the KV (270 mm) and KD-LR (267 mm) series. It has a 25 mm stator, an 18 mm rotor and a 0.5 mm gap; it processes 0.1 to 2 l and specifies a final fineness of 5 to 25 µm for suspensions.Ball bearing, PTFE seal and materialsThe shaft runs in a ball bearing with a PTFE seal and an FFKM O-ring. Materials in contact with the product are AISI 316L, PTFE and FFPM; the tool is FDA-compliant. The pH range is from 2 to 13; solvents are permitted. Operation under vacuum is permitted down to 100 mbar. The maximum operating temperature is 150 °C; sterilisation is permitted using all methods except hot air.Speed and dimensionsAt 25,000 rpm, the rotor reaches a peripheral speed of 23.6 m/s. The final particle size for emulsions is between 1 and 5 µm. Batch sizes of 100 to 2,000 ml are recommended. The tool weighs 0.404 kg.Typical applicationsDispersing and emulsifying volumes of 0.1 to 2 lSuspensions with final particle sizes of 5 to 25 µmEmulsions with final particle sizes of 1 to 5 µmOperations under vacuum down to 100 mbarProcesses using solvents in the pH range 2 to 13Technical detailsProcessable volume (H2O)0.1 to 2 lStator diameter25 mmRotor diameter18 mmStator/rotor gap width0.5 mmMax. permissible speed25,000 rpmMaximum circumferential speed23.6 m/sPenetration depth40 to 165 mmInstallation length194 mmBearing and sealBall bearing, PTFE seal, FFKM O-ringMaterials in contact with the productAISI 316L, PTFE, FFPMpH range2 to 13Suitable for solventsYesMax. operating temperature150 °CSterilisabilityAll methods except hot airVacuum100 mbarFinal particle size of suspensions5 to 25 µmFinal particle size of emulsions1 to 5 µmFDA complianceYesWeight0.404 kgScope of delivery1 x IKA S 25 KD - 25 F dispersing tool (single tool)The drive unit (T 25 easy clean digital, T 25 easy clean control or T 25 digital) is not included in the Scope of delivery.Longer versions with the same rotorThe same geometry (25 mm stator, 18 mm rotor, 0.5 mm gap) and the same final fineness values are found in the S 25 KD - LR - 25 F with an installation length of 267 mm for IKA laboratory reactors and in the S 25 KV - 25 F with a mechanical seal, an installation length of 270 mm, vacuum down to 1 mbar and up to 220 °C. The S 25 KD - 25 G operates with a 17 mm rotor and a capacity of 0.05 to 2 l.Individual requirements and procurement serviceLT Laborhandel can supply the appropriate T-25 drives and a second tool for changing them on request. The procurement service will clarify the geometry with you.

According to IKA, the S 25 KD - LR - 25 F (0025007322) has been specially developed for use in IKA laboratory reactors. It is slightly longer than the standard tools and therefore extends deeper into the reactor, enabling even small sample volumes to be processed.Length and immersion depthThe installation length is 267 mm, and the immersion depth ranges from 40 to 220 mm. The shorter S 25 KD - 25 F has an installation length of 194 mm and an immersion depth of 40 to 165 mm. According to IKA, the new design of the KD tools makes disassembly and cleaning easier. The tool may be operated under vacuum down to 100 mbar.F-rotor and finenessAccording to IKA, the F tool achieves an even finer particle size compared with the G tools. The final fineness ranges from 5 to 25 µm for suspensions and from 1 to 5 µm for emulsions. Stator 25 mm, rotor 18 mm, gap 0.5 mm; at 25,000 rpm, peripheral speeds of up to 23.6 m/s are achieved.Materials and limit valuesMaterials in contact with the product are FFPM, PTFE and AISI 316L; the tool is FDA-compliant. The pH range is from 2 to 13; solvents are permitted. The maximum operating temperature is 150 °C; sterilisation is permitted using all methods except hot air. The weight is 0.404 kg.Typical applicationsDispersion in IKA laboratory reactorsSmall sample volumes in the reactor thanks to an immersion depth of up to 220 mmSuspensions with final particle sizes of 5 to 25 µmEmulsions with final particle sizes of 1 to 5 µmOperations under vacuum down to 100 mbarProcesses involving solventsTechnical detailsProcessable volume (H2O)0.1 to 2 lStator diameter25 mmRotor diameter18 mmStator/rotor gap width0.5 mmMax. permissible speed25,000 rpmMaximum circumferential speed23.6 m/sPenetration depth40 to 220 mmInstallation length267 mmMaterials in contact with the productFFPM, PTFE, AISI 316LpH range2 to 13Suitable for solventsYesMax. operating temperature150 °CSterilisabilityAll methods except hot airVacuum100 mbarFinal particle size of suspensions5 to 25 µmFinal particle size of emulsions1 to 5 µmFDA complianceYesWeight0.404 kgScope of delivery1 x IKA S 25 KD - LR - 25 F dispersing tool (single tool)The reactor and drive are not included in the Scope of delivery.Compatible reactors and drivesIKA supplies this tool for the LR 1000 basic and LR 1000 control laboratory reactors, several models in the LR-2.ST series and the T 25 digital LR.For larger vessels or larger rotorsThe S 25 KD - 25 F has the same geometry in a short design for the T 25 drives. With a 30 mm stator, 22 mm rotor and a capacity of 0.05 to 5 l, the S 25 KD - LR - 30 G operates with the same installation length of 267 mm, and the S 25 KD - LR - 30 F with a 23 mm rotor, 30.1 m/s and 5 to 25 µm.Individual requirements and procurement serviceLT Laborhandel can source reactors, drives and suitable tools on request. The procurement service helps you put together the right combination for your application.

A stator with a diameter of 30 mm and an installation length of 267 mm: The S 25 KD - LR - 30 G (0020127971) is a general-purpose G-series tool for batches ranging from 0.05 to 5 l. It is designed for the IKA LR-5.ST laboratory reactor and has an immersion depth of 40 to 220 mm.Fine suspensions and emulsionsIKA describes the tool as suitable for relatively fine suspensions and emulsions, including larger volumes containing solids in liquid. The final particle size ranges from 15 to 50 µm for suspensions and from 1 to 10 µm for emulsions. The rotor has a diameter of 22 mm; the gap to the stator is 0.5 mm wide. At 25,000 rpm, the rotor’s circumferential speed reaches 28.8 m/s.Immersion in the reactorThe extended design allows for deeper immersion in reactors. Furthermore, disassembly for cleaning is simplified. The tool operates under vacuum down to 100 mbar and is FDA-compliant.Materials and resistanceMaterials in contact with the product are AISI 316L, PTFE and FFPM. The pH range is from 2 to 13; the tool is suitable for use with solvents. The maximum temperature is 150 °C; sterilisation is permitted using all methods except hot air.Drives and reactorsIn addition to the LR-5.ST laboratory reactors (High-Performer and Versatile), IKA also mentions the T 25 digital and T 25 easy clean digital dispersers.AlternativesWith the same stator but a 23 mm rotor diameter and a final fineness of 1 to 5 µm for emulsions, the S 25 KD - LR - 30 F is available. For the T 25 without a reactor, the S 25 KD - 25 G is available, featuring a 25 mm stator and an installation length of 194 mm.Typical applicationsDispersion in the LR-5.ST laboratory reactorSuspensions and emulsions in batches of 0.05 to 5 lLarger volumes containing solids in liquidOperations under vacuum down to 100 mbarProcesses requiring frequent dismantling for cleaningTechnical detailsWorking range (H2O)0.05 to 5 lStator diameter30 mmRotor diameter22 mmStator/rotor air gap0.5 mmMax. permissible speed25,000 rpmMaximum circumferential speed28.8 m/sPenetration depth40 to 220 mmInstallation length267 mmMaterials in contact with the productAISI 316L, PTFE, FFPMpH range2 to 13Suitable for solventsYesMax. temperature150 °CSterilisabilityAll methods except hot airVacuum100 mbarFinal particle size of suspensions15 to 50 µmFinal particle size of emulsions1 to 10 µmFDA complianceYesScope of delivery1 x IKA S 25 KD - LR - 30 G dispersing tool (single tool)The drive unit or reactor is not included in the Scope of delivery.Individual requirements and procurement serviceLT Laborhandel can source reactors, drives and other tools on request. The procurement service will clarify how the parts fit in with your application.

The reactor determines the length: The IKA S 25 KD - LR - 30 F was developed for the 5-litre LR-5.ST laboratory reactor and, at 267 millimetres, is longer than the standard tools. This allows it to penetrate deeper into the reactor and process even smaller minimum volumes. The stator diameter is 30 millimetres, whilst the rotor measures 23 millimetres.Emulsions with the F toolAccording to IKA, the F tool produces very fine emulsions down to 1 micron, but requires relatively low viscosities to do so. The final particle size ranges from 1 to 5 micrometres for emulsions and from 5 to 25 micrometres for suspensions. The gap between the rotor and stator is 0.5 millimetres; at 25,000 rpm, the peripheral speed is 30.1 metres per second.Vacuum and maintenanceThe unit may be operated under vacuum down to 100 mbar. Dismantling for cleaning and maintenance is simplified by the new design. Materials in contact with the product are AISI 316L, PTFE and FFPM; the operating temperature ranges up to 150 degrees Celsius, and the pH range is from 2 to 13. Sterilisation is permitted using all methods except hot air.Compatible equipmentIn addition to the LR-5.ST laboratory reactors (High-Performer and Versatile), the tool is compatible with the T 25 digital, T 25 easy clean digital and T 25 easy clean control.Typical applicationsDispersing and emulsifying in the LR-5.ST laboratory reactorEmulsions with a particle size down to 1 µm at low viscositiesBatches from 0.1 to 5 lOperations under vacuum down to 100 mbarProcesses requiring frequent dismantling for cleaningTechnical detailsStator diameter30 mmRotor diameter23 mmStator/rotor air gap width0.5 mmProcessable volume (H2O)0.1 to 5 lMaximum permissible speed25,000 rpmMaximum peripheral speed30.1 m/sImmersion depth40 to 220 mmInstallation length267 mmMaterial in contact with the productAISI 316L, PTFE, FFPMpH range2 to 13Suitable for solventsYesMax. operating temperature150 °CVacuum100 mbarSterilisabilityall methods except hot airFinal particle size of suspensions5 to 25 µmFinal particle size of emulsions1 to 5 µmFDA complianceYesScope of delivery1 x IKA S 25 KD - LR - 30 F dispersing tool (single tool)The drive is not included in the scope of delivery.Alternatives with a 25-millimetre diameterFor the T 25 easy clean, the S 25 EC - C - 25 F is available with an 18-millimetre rotor diameter and a working range of 0.1 to 2 l. The S 25 KV - 25 F operates with a mechanical seal under vacuum down to 1 mbar.Selection guide: a comparisonToolStator / RotorOperating range (H2O)S 25 KD - LR - 30 F (this product)30 / 23 mm0.1 to 5 lS 25 EC - C - 25 F25 / 18 mm0.1 to 2 lS 25 KV - 25 F25 / 18 mm0.1 to 2 lIndividual requirements and procurement serviceLT Laborhandel will be happy to advise you on the LR-5.ST reactor and other accessories on request. Please contact our procurement service for this.

Safe dispersion in a closed system: IKA S 18/25-ET50 disposable tube The IKA S 18/25-ET50 (MPN 0003452500) is a practical single-use tube with a volume of 50 ml. It is the ideal solution for laboratories working with infectious, toxic or extremely odourous samples and which have the highest standards of safety and hygiene. Function: Splash protection and contamination control This tube has been specially developed for use with the disposable plastic dispersing tools from the IKA S 18 D and S 25 D series (compatible with the T 18 and T 25 drives). Easy to attach: The tube simply clips onto the shaft of the plastic tool. Sealed system: The precise fit creates a sealed chamber. The sample cannot splash out during homogenisation. Safety: It protects the user from hazardous aerosols and prevents contamination of the fume cupboard or the drive motor. No cross-contamination: As both the dispersing tool (S 18 D / S 25 D) and the tube are disposed of as a whole after use, sample carry-over (cross-contamination) is 100 per cent ruled out. Time-consuming cleaning and sterilisation are no longer necessary. Material and application The tube is made of robust polypropylene (PP). It is largely chemical-resistant and is ideally suited for applications in medical diagnostics, pharmaceutical research, forensic science or food analysis, where sterile or single-substance conditions are required. Technical data Model: S 18/25-ET50 Product type: Disposable sample vessel / splash guard Volume: 50 ml Material: Polypropylene (PP) Compatibility with tools: IKA S 18 D and S 25 D (disposable plastic tools) Drive compatibility: IKA T 18 (digital, brushless, mini) and T 25 (digital, easy clean, mini) Function: Enables dispersion in a sealed system Weight: approx. 0.014 kg Contents 1 x IKA S 18/25-ET50 disposable tube (50 ml) (Please note: The drive unit and disposable dispersing tools are not included and must be ordered separately!) Individual requirements & accessories To use this system, you must have the appropriate IKA disposable plastic tools (e.g. S 18 D - 10 G - KS or S 25 D - 14 G - KS). We would be happy to put together the appropriate consumables sets for your T 18 or T 25 drive. Please contact our procurement service.

Maximum efficiency in dissolution and deagglomeration: the IKA S 25 KV - 26 LR dissolver The IKA S 25 KV - 26 LR dissolver (MPN 0020015397) represents the very pinnacle of modern mixing and dispersion technology for demanding laboratory reactor systems. In many industrial and research sectors – be it in chemical synthesis, cosmetics development, paint production or food technology – users face the significant daily challenge of homogeneously incorporating fine powders, highly cohesive solids or sticky pigments into liquid media. Very often, stubborn agglomerates form when these solids are stirred in. These disruptive clumps of particles are simply moved in circles by conventional agitators such as propeller, paddle or anchor agitators, but are not effectively broken up mechanically. The result is incomplete reactions, poor textures or significantly prolonged process times. This high-speed dissolver was designed precisely for these critical and energy-intensive process steps. It delivers uncompromising performance in intensive mixing, dissolution and deagglomeration to ensure homogeneous, completely lump-free dispersions in the shortest possible time. The aerodynamic dissolver principle In direct comparison to a conventional rotor-stator dispersing tool, in which the medium is forced through a very narrow, defined gap between two components, the S 25 KV - 26 LR model utilises a specially serrated dissolver disc with a diameter of 26 millimetres. This solid metal disc rotates freely at extremely high speeds (high speed) within the liquid medium. The sharp teeth on the edge of the disc, which are alternately curved upwards and downwards, generate immense local shear forces and strong turbulence. The rotation accelerates the liquid radially outwards with great force, which simultaneously creates an enormous axial suction effect (vortex formation) at the centre. This intelligent flow pattern draws the floating or agglomerated powder particles from the liquid surface directly downwards towards the rotating toothed disc. There, they are literally shattered by the high kinetic energy of the teeth and broken down into their fine primary particles. In process engineering, this principle is the absolute gold standard method for the rapid incorporation of poorly wettable thickeners, colour pigments or high-molecular-weight polymers into aqueous or highly solvent-based systems. Vacuum and pressure tightness (the ‘KV’ seal) Another outstanding feature of this stirring tool, which is indispensable for many applications, is indicated by the specific abbreviation ‘KV’. In IKA products, this stands for a high-quality ball bearing system combined with a special sealing technology that makes the tool absolutely vacuum- and pressure-tight (up to the respective system-specific limits of the laboratory reactors). When working professionally with state-of-the-art laboratory reactors such as the IKA LR 1000 control System or the versatile LR-2.ST series, this leak-tightness is of fundamental importance. Sensitive chemical reactions or the production of high-purity cosmetics and emulsions often require the strict exclusion of oxygen. Users must work under a protective inert gas atmosphere or specifically degas the sample under vacuum to avoid disruptive air pockets in pasty, viscous media. A conventional, open dispersing tool would cause the reactor chamber to leak under these extreme conditions and ruin the process. The S 25 KV - 26 LR dissolver agitator, on the other hand, seals the reactor opening absolutely securely via the flange. This allows you to deagglomerate your samples at full high-speed rotation whilst a strong vacuum is maintained inside the vessel – an enormous technological advantage for process quality. Material quality, hygiene and compatibility As this dissolver stirrer is designed for direct, continuous contact with aggressive chemicals, highly abrasive pigments and reactive media, all parts in contact with the media (including the dissolver disc and the shaft) are made from high-quality, chemically extremely resistant AISI 316L stainless steel. This industrially proven material not only guarantees outstanding resistance to most organic solvents, acids and alkalis, but can also be cleaned safely and thoroughly after use, leaving no residue. Thanks to its robust construction, the unit is ideally suited to the rigours of everyday laboratory use. As an original accessory, the S 25 KV - 26 LR is precisely matched to IKA’s reactor platforms. It is fully compatible with the T 25 digital LR disperser, the LR 1000 systems (basic and control) and the entire LR-2.ST series (including Allrounder, High Performer and Starvisc). Investing in this highly specialised tool massively increases the efficiency of your laboratory processes, significantly reduces mixing times and decisively optimises the quality of your end products. Technical data Model: S 25 KV - 26 LR Product type: High-speed dissolver stirring shaft Operating principle: Dissolver disc (toothed disc) for high shear forces Dissolver disc diameter: 26 mm Max. immersion depth: 180 mm Bearing/seal: Ball bearing, vacuum- and pressure-tight (KV) Material in contact with the medium: Stainless steel (AISI 316L) Main application: Intensive mixing, dissolution, breaking up of agglomerates (e.g. pigments) Compatible drives/reactors: IKA T 25 digital LR, LR 1000 basic system, LR 1000 control system, LR-2.ST (Allrounder, High Performer, Versatile, Compact Power, Starvisc 200) Scope of supply 1 x IKA S 25 KV - 26 LR dissolver agitator (Please note: The reactor, drive motor and reactor lid are not included in the scope of delivery!) Customised requirements & accessories Get the most out of this high-speed stirrer by integrating it into the IKA LR 1000 laboratory reactors. Should you require a conventional rotor-stator tool for your reactor instead of a dissolver (e.g. for ultra-fine emulsions), we naturally also offer the corresponding vacuum-tight KD tools. Please feel free to contact our procurement service at any time for expert system advice on all aspects of your reactor technology.

Maximum analytical reliability through impeccable hygiene: the IKA TS 25-3 Cleaning Tool In modern laboratory practice – be it in strictly regulated pharmaceutical quality control, highly sensitive food analysis or microbiological research – sample preparation is by far the most critical step. High-performance dispersing tools break down tissue, emulsify oils or suspend powders using immense shear forces. In the process, microscopically small sample particles are inevitably forced deep into the narrow gap between the rotor and stator, as well as into the tool’s internal plain bearings. If these residues are not removed one hundred per cent after every single sample, there is a risk of the dreaded cross-contamination (carry-over). Even invisible traces of DNA, allergens or active pharmaceutical ingredients from the previous sample can completely skew the subsequent analysis, leading to fatal misinterpretations or costly product recalls. Manually scrubbing the sharp-edged tools under running water is not only extremely time-consuming, but also poses a high risk of injury to laboratory staff. To standardise this essential cleaning process, make it safer and significantly speed it up, IKA has developed the TS 25-3 Cleaning Tool (MPN 0020003013). This intelligent cleaning system is the ultimate solution for all users of the T 25 disperser series who cannot afford to compromise on the cleanliness of their instruments. The systematic 3-stage cleaning procedure At the heart of the IKA TS 25-3 system lies not only the hardware itself, but also the establishment of a validatable Standard Operating Procedure (SOP) for your laboratory. With this tool, IKA recommends a precisely defined and highly effective cleaning process comprising three consecutive steps: Pre-cleaning (solvent): In the first step, coarse contamination is removed. The contaminated dispersing tool is inserted into the first tube, which is filled with a solvent suitable for your sample. Switching on the dispersing drive creates a powerful suction that forces the solvent through the shear gap with high kinetic energy, mechanically and chemically dislodging even stubborn, greasy or sticky residues. Main cleaning (cleaning agent): In the second step, you move on to the next tube, which is filled with a specific laboratory cleaning agent (surfactant mixture). Here, proteins are denatured, fats are emulsified and any remaining organic or inorganic deposits are separated from the tool’s high-quality stainless steel at a molecular level. Final cleaning (rinsing): The third and final step takes place in the last tube, which contains pure, demineralised water. This rinsing cycle thoroughly washes all remaining traces of the previously used solvents and cleaning agents out of the tool. The result is a chemically pure, residue-free dispersion tool that is immediately ready for the next highly sensitive sample. Occupational health and safety at the highest level In addition to analytical purity, the TS 25-3 Cleaning Tool offers an invaluable advantage in terms of occupational health and safety. When solvents or aggressive surfactants are dispersed openly in a beaker to clean a tool, dangerous aerosols are inevitably produced, which can be inhaled by laboratory staff. The TS 25-3 system eliminates this hazard. The ingenious tube holder secures the three supplied tubes firmly and stably. Thanks to the matching caps, the cleaning process takes place in a largely enclosed system. This effectively prevents toxic solvents or hot cleaning solutions from being sprayed out. It also eliminates the need for dangerous manual handling with brushes near the razor-sharp, rotating blades of the dispersing tool. Comprehensive compatibility with the T 25 ecosystem IKA has seamlessly integrated this cleaning tool into its existing product portfolio. The TS 25-3 Cleaning Tool is designed exclusively for use in combination with the globally proven high-performance dispersers of the T 25 class, namely the T 25 digital and the modern high-tech drives T 25 easy clean digital and T 25 easy clean control. In terms of tools, the system covers an enormous range. It has been specifically developed for cleaning a wide variety of stainless steel dispersing tools, including models from the S 25 N series (e.g. S25N-18G/18G-ST, S25N-25G/F/25G-ST), the S 25 KR series (e.g. S25KR-18G/18G-ST, S25KR-25G/25F/25G-ST) and the vacuum-sealed S 25 KV series (S25KV-18G/25G/25F). Cost-effectiveness and Total Cost of Ownership (TCO) At first glance, a specialised cleaning tool may seem like nothing more than a luxury item. However, if a detailed full-cost analysis is carried out, the TS 25-3 pays for itself extremely quickly in laboratories with high sample throughput. The working time saved by highly qualified laboratory staff, who no longer have to stand at the sink for minutes on end, is considerable. Far more crucial, however, is the extension of the service life of your expensive dispersing tools. Improper manual cleaning often leads to microscopic scratches on the stator or damage to the sensitive plain bearings caused by dried-on sample residues. Hydrodynamic cleaning in the TS 25-3 is gentle on the material, prevents shafts from seizing up and thus massively reduces your ongoing spare parts costs. Investing in the IKA TS 25-3 Cleaning Tool means investing in certifiable process reliability, the protection of your staff and the uncompromising reliability of your analytical results. Technical data System type: 3-stage cleaning system for dispersing tools Cleaning phases: 1. Solvent, 2. Detergent, 3. Demineralised water Compatible drive motors: IKA T 25 digital, T 25 easy clean digital, T 25 easy clean control Compatible tools (selection): S 25 N series (18G, 25G, 25F), S 25 KR series, S 25 KV series Health and safety benefit: Reduces aerosol formation and contact with sharp rotor blades Analytical benefit: Prevents cross-contamination (carry-over) Contents 1 x tube holder (sturdy base) 3 x cleaning tubes 3 x caps (for splash and aerosol protection) (Please note: The dispersion drive and the dispersion tools are not included in the scope of delivery!) Individual requirements & accessories Have you switched to the newer generation of ‘easy clean’ (EC) tools in your laboratory, which can be cleaned without any dismantling? For machine cleaning in the laboratory dishwasher, we recommend the IKA HS 25 EC - DW Holder as a supplementary item. Do you work with highly infectious samples and wish to avoid cleaning altogether? In that case, we would be happy to advise you on IKA’s sterile, single-use plastic tools. Please feel free to contact our expert procurement service at any time for a bespoke optimisation of your laboratory processes.

The gold standard for contamination-free sample preparation: the IKA S 25 D - 10 G - KS disposable dispersing tool In highly specialised analytical laboratories, medical diagnostics, forensic evidence collection and modern biotechnological research, the quality of sample preparation is the crucial foundation for valid results. When grinding and homogenising tissue samples, cell cultures or infectious materials using a high-performance disperser from the IKA T 25 series, enormous mechanical shear forces are at work. These forces inevitably force microscopically small components of the sample deep into the mechanical gaps and plain bearings of the tool being used. Unless a conventional stainless-steel tool is laboriously dismantled, chemically cleaned and sterilised in an autoclave after every single sample, there is a risk of the dreaded cross-contamination (carry-over). It is precisely to address this critical, time-consuming and error-prone issue that IKA has developed the revolutionary S 25 D - 10 G - KS disposable dispersing tool (MPN 0003452200). Supplied in a cost-effective pack of 12, this tool, made from high-quality medical-grade plastic, offers uncompromising homogenisation performance whilst providing 100 per cent protection against sample carry-over. The end of cross-contamination in highly sensitive processes The fundamental concept behind the “KS” (plastic) series is the single-use principle. In fields such as PCR (polymerase chain reaction) analysis, next-generation sequencing (NGS) or toxicological testing, even a single carried-over DNA molecule or a tiny trace of an active substance from a previous sample can lead to false-positive results. At best, such misinterpretations merely ruin an expensive series of experiments; at worst, however, they can lead to incorrect medical diagnoses or forensic evidence that is inadmissible in court. With the IKA S 25 D - 10 G - KS, you can completely eliminate this risk. For each new patient or environmental sample, you remove a brand-new, unused tool from its packaging. After the dispersion process, the plastic tool is simply disposed of properly, together with the potentially contaminated residual sample. The error-prone and time-consuming cleaning and sterilisation cycle required for conventional stainless steel tools is completely eliminated, raising your process reliability (GLP/GMP) to an unprecedented level. Technological precision: 10 mm stator and coarse (G) geometry Despite being designed as a single-use item, this tool is in no way inferior to its steel counterparts in terms of homogenisation efficiency. It operates on the highly effective rotor-stator principle. The stator has a precisely dimensioned diameter of 10 millimetres (hence the ‘10’ in the product name). This compact size defines the optimal working range: the tool is precisely designed for the rapid homogenisation of small to medium sample volumes in the range of 10 to 100 millilitres (based on the viscosity of water). The abbreviation ‘G’ stands for a coarse slot geometry on the stator. This open, high-throughput design is of fundamental importance when you need to process coarse-grained, tough or highly fibrous raw materials. Plant roots, muscle tissue, cartilage or compact pharmaceutical tablets are drawn deep into the shear gap by the rotor’s powerful axial suction forces and shattered there into their finest components at speeds of up to 24,000 revolutions per minute. Cost-effectiveness and Total Cost of Ownership (TCO) in the laboratory At first glance, the ongoing purchase of disposable tools is often regarded as an additional cost factor. However, a detailed total cost of ownership (TCO) analysis in day-to-day laboratory practice consistently proves the exact opposite. The purchase cost of an IKA S 25 D single-use tool is significantly lower than the cumulative cost of the working time a highly qualified laboratory technician spends each day at the sink dismantling and brushing stainless steel tools. Added to this are the substantial savings on expensive, aggressive cleaning chemicals, the energy consumption of the autoclave, and the inevitable wear and tear on PTFE slide bearings and seals in conventional instruments. By using single-use technology, laboratories drastically increase their sample throughput. Staff are freed from tedious cleaning tasks and can once again concentrate on the actual, value-adding scientific analysis. System integration for maximum occupational safety (splash protection) The S 25 D - 10 G - KS is designed as a precisely fitting original accessory exclusively for the IKA T 25 dispersion drives (compatible with T 25 digital, T 25 easy clean digital and T 25 easy clean control). Another advantage of this system, which is absolutely crucial for occupational health and safety, is its compatibility with IKA disposable tubes (e.g. the ET50 tube). Fitting this protective tube onto the tool shaft creates a completely sealed system. When dispersing infectious bacterial cultures, toxic chemicals or extremely foul-smelling environmental samples, no dangerous splashes or invisible aerosols can escape into the laboratory environment or the fume cupboard. You therefore not only protect yourself and your staff from dangerous pathogens, but also prevent external contamination of your valuable laboratory instruments. The S 25 D - 10 G - KS is therefore the ultimate choice for laboratories that place the highest priority on uncompromising safety, maximum efficiency and absolute sample purity. Technical data Product type: Disposable dispersing tool (rotor-stator) Packaging unit (PU): 12 pieces per box Material: High-quality, dimensionally stable and chemical-resistant plastic (PC/polymer blend) Stator diameter: 10 mm Rotor diameter: approx. 6.8 mm Working range (H₂O volume): 10–100 ml Slot geometry: Coarse (G) for high throughput with viscous samples Gap between rotor and stator: 0.2 mm Maximum permissible speed: up to 24,000 rpm (depending on the drive used) Immersion depth: 15 – 85 mm Compatible drives: IKA T 25 digital, T 25 easy clean digital, T 25 easy clean control Sterilisable: No (purely a single-use item to prevent contamination) Contents 1 x box containing 12 IKA S 25 D - 10 G - KS single-use plastic dispersing tools (Important note: The required T 25 drive motor, as well as any sample vessels or protective tubes that may be needed, are available separately and are not included in this delivery.) Individual requirements & accessories To realise the full potential of this tool in terms of health and safety, we strongly recommend using it in combination with the IKA S 18/25-ET50 disposable tube, which fits seamlessly onto the shaft and acts as a hermetic aerosol barrier. Do you need to process significantly larger sample volumes (up to 500 ml)? Then simply switch to the larger version, the S 25 D - 14 G - KS (with a 14 mm stator). Our procurement service will be happy to advise you on selecting the ideal tool sizes and establishing SOPs for your sample preparation.

Maximum analytical reliability for medium and large volumes: the IKA S 25 D - 14 G - KS disposable dispersing tool In modern, highly specialised laboratory analysis, medical and clinical diagnostics, and forensic evidence collection, sample preparation forms the absolute, critical foundation for all subsequent investigations. When pulverising animal and plant tissue samples, homogenising viscous cell cultures or processing infectious environmental materials using a high-performance disperser from the renowned IKA T 25 series, enormous mechanical shear forces are at work. These physical forces inevitably force microscopically small, often invisible components of the sample deep into the mechanical gaps and internal plain bearings of the tool being used. Unless a conventional reusable stainless-steel tool is painstakingly dismantled, chemically cleaned, brushed and then sterilised in an autoclave after every single sample, there is a risk of cross-contamination (known as ‘carry-over’), which is dreaded by laboratory technicians. To finally eliminate this highly critical, extremely time-consuming and error-prone problem from your day-to-day laboratory routine, IKA has developed the revolutionary S 25 D - 14 G - KS single-use dispersing tool (MPN 0003452100). Supplied in a cost-effective and practical pack of 12, this tool, made from high-quality medical-grade plastic, offers uncompromising homogenisation performance whilst ensuring absolute protection against any sample carry-over. The end of cross-contamination in highly sensitive processes The fundamental and truly groundbreaking concept behind the ‘KS’ (plastic) series is based on the strict single-use principle. In highly sensitive fields such as PCR (polymerase chain reaction) analysis, preparation for next-generation sequencing (NGS) or toxicological investigations in forensic medicine, even a single, invisibly carried-over DNA molecule or a minuscule trace of an active substance from a previous sample can lead to so-called false-positive results. At best, such catastrophic misinterpretations ‘merely’ ruin an extremely expensive and time-consuming series of experiments; at worst, however, they can lead to fundamentally incorrect medical diagnoses or chains of evidence that are inadmissible in court. By using the IKA S 25 D - 14 G - KS, you eliminate this enormous analytical risk one hundred per cent. For every new patient or environmental sample, you remove a completely fresh, unused and hygienically impeccable tool directly from its packaging. After the dispersion process, the plastic tool is simply disposed of properly as clinical waste, together with any potentially infectious or contaminated residual sample. The error-prone, extremely time-consuming and expensive cleaning and sterilisation cycle required for conventional stainless steel tools is completely eliminated, raising your process reliability and compliance with standards (GLP/GMP) to an unprecedented level. The 14-millimetre advantage: powerful for medium to large volumes In direct comparison with the smaller 10 mm instruments, this S 25 D - 14 G - KS model stands out due to its significantly larger stator diameter of 14 millimetres (indicated by the ‘14’ in the product designation). This larger size greatly expands the tool’s efficient working range: you can homogenise sample volumes from 10 millilitres up to a substantial 500 millilitres (based on the viscosity of water) effortlessly, quickly and with absolute reproducibility. The additional suffix ‘G’ denotes a coarse slot geometry on the stator. This open, high-throughput geometry is of fundamental importance when dealing with coarse-grained, extremely tough or highly fibrous feedstocks. Sturdy plant roots, tough muscle tissue, tough cartilage, coated pharmaceutical tablets or compact food samples are drawn deep into the shear gap by the powerful axial suction forces of the 14-mm rotor. There, at speeds of up to 24,000 revolutions per minute, they are cut and pulverised into their finest components by the sharp plastic edges. Cost-effectiveness and Total Cost of Ownership (TCO) in the modern laboratory At first, cursory glance, the ongoing purchase of single-use tools is very often regarded as an additional and unnecessary cost factor. However, a detailed full-cost analysis (Total Cost of Ownership) in real-world laboratory practice proves the exact opposite in almost every case. The purchase cost of a single IKA S 25 D disposable tool is significantly lower than the cumulative cost of the expensive working time a highly qualified laboratory technician spends daily at the sink dismantling, laboriously brushing and reassembling conventional stainless steel tools. Added to this are the substantial, often hidden savings on expensive, aggressive cleaning chemicals, the high energy and water consumption of the autoclave, and the inevitable and costly wear and tear on PTFE slide bearings and seals in stainless steel models. Through the consistent use of single-use technology, analytical laboratories drastically increase their sample throughput. Highly qualified staff are freed from repetitive, tedious cleaning tasks and can finally concentrate fully once again on the actual, value-adding scientific analysis of the data. System integration for maximum occupational safety (aerosol protection) The IKA S 25 D - 14 G - KS is designed as a precisely fitting original accessory exclusively for the globally proven IKA T 25 dispersing drives. It can be coupled seamlessly and without play to the T 25 digital, the T 25 easy clean digital and the T 25 easy clean control. Another advantage of this system, which is absolutely crucial and indispensable for modern occupational health and safety, is its 100% compatibility with IKA disposable tubes (such as the S 18/25-ET50 tube). Simply attaching this protective tube to the tool shank creates a fully self-contained system. When dispersing infectious bacterial cultures, highly toxic chemicals or extremely foul-smelling environmental samples at maximum speed, this ensures that no dangerous splashes or invisible, respirable aerosols can escape into the laboratory environment or the fume cupboard. In this way, you not only effectively protect yourself and your staff from dangerous pathogens, but also prevent the unnoticed external contamination of your valuable laboratory instruments, balances and pipettes in the immediate vicinity. Technical data Product type: Disposable dispersing tool (rotor-stator principle) Packaging unit (PU): 12 pieces per box Material: High-quality, dimensionally stable and chemical-resistant plastic (PC/polymer blend) Stator diameter: 14 mm Rotor diameter: approx. 10.3 mm Working range (H₂O volume): 10 – 500 ml Slot geometry: Coarse (G) for extremely high material throughput with solid/tough samples Maximum permissible speed: up to 24,000 rpm (depending on the T 25 drive used) Immersion depth: 15 – 85 mm Maximum permissible operating temperature: 100 °C Compatible drives: IKA T 25 digital, T 25 easy clean digital, T 25 easy clean control Sterilisable: No (Purely a single-use item to strictly prevent contamination) Contents 1 x box containing 12 IKA S 25 D - 14 G - KS disposable plastic dispersing tools (Important note: The essential IKA T 25 drive motor, as well as any sample vessels or ET50 protective tubes that may be required, are available separately and are expressly not included in this scope of delivery.) Individual requirements & accessories To fully exploit the potential of this tool in terms of occupational safety and aerosol protection, we strongly recommend combining it with the IKA S 18/25-ET50 disposable tube, which fits seamlessly onto the shaft of this 14 mm tool and acts as a hermetic splash guard. Do you need to process very small sample volumes (under 100 ml) with high precision? In that case, simply switch to the smaller version, the S 25 D - 10 G - KS (with a 10 mm stator), for these applications. Our experienced procurement service will be happy to advise you on selecting the ideal tool sizes and establishing optimal Standard Operating Procedures (SOPs) for your contamination-free sample preparation.

The IKA R 182 cross clamp (MPN 0002657700) connects the drive head of the IKA RW 20 digital at a right angle to the stand rod and fixes the stirrer at the desired height above the stirring vessel, without the position shifting during stirring.CompatibilityOfficial accessory for the IKA RW 20 digital stirrer (MPN 0003593000), listed under fixing elements on the corresponding accessory page.Technical detailsDesignCross clamp for mounting the stirrer to the stand rod at a right angleContents of the package1 x IKA R 182 cross clamp (MPN 0002657700).Individual requirements & procurement serviceFor the matching stand rod we also carry the IKA R 1825 plate stand. Our procurement service helps put together the complete stirrer stand assembly.

An overhead stirrer such as the IKA RW 20 digital needs its own stand to hold the drive securely above the stirring vessel. The IKA R 1825 plate stand (MPN 0003160000) is the entry-level model in the IKA stand series for this purpose, with a stable base plate on which the stirring vessel itself can also stand.With a rod height of 560 mm and a rod diameter of 16 mm, the stand has enough room to position the stirrer head above vessels of different heights, and takes up to 5 kg of load according to the manufacturer.CompatibilityOfficial accessory for the IKA RW 20 digital stirrer (MPN 0003593000), listed under stands on the corresponding accessory page. For higher demands, the same series also includes the larger models R 1826 and R 1827.Technical detailsHeight560 mmBase plate (W x D)200 x 316 mmRod diameter16 mmMax. load5 kgContents of the package1 x IKA R 1825 plate stand (MPN 0003160000).Individual requirements & procurement serviceFor mounting the stirrer to the stand rod we also carry the matching IKA R 182 cross clamp. Our procurement service also advises on the larger stand models R 1826 and R 1827 if more height or stability is required.

Perfect emulsions without unwanted air entrapment: the IKA Silentstream flow breaker In demanding product development, cosmetic formulation, food technology and chemical synthesis, high-performance dispersion is one of the most important, yet physically demanding, methods of sample preparation. When a dispersing tool based on the rotor-stator principle operates in an open beaker or reactor at speeds of 10,000 to 25,000 revolutions per minute, it not only generates enormous shear forces to break down the particles. At the same time, a massive rotational flow is generated within the liquid. This flow inevitably leads to the formation of a deep, crater-shaped vortex – known as a ‘trombe’. This vortex often extends right down to the stator’s suction ports. The fatal consequence: the disperser continuously draws in massive quantities of ambient air into the liquid medium. It is precisely to address this serious process-related problem that IKA has developed the innovative Silentstream accessory (MPN 0003754000). This intelligent flow baffle is the ultimate solution for reducing air ingress to an absolute minimum and significantly improving the quality of your dispersions. The negative consequences of air entrapment in everyday laboratory work Why is air in a dispersed sample so extremely harmful? The unwanted introduction of air through vortex formation causes three major problems in everyday laboratory work: Firstly, the entrained air leads to excessive foaming. Highly foaming samples (such as protein-containing solutions or surfactant-containing shampoos) overflow from the beaker, contaminate the workstation and result in the loss of valuable sample material. Secondly, microscopic air bubbles ruin the physical stability and texture of fine emulsions. A high-quality cosmetic cream or pharmaceutical ointment produced with air entrapments looks unattractive, feels dull on the skin and is prone to rapid phase separation (coalescence). Thirdly – and this is the most critical point for analytical purposes – constant contact with atmospheric oxygen at extreme shear rates leads to severe oxidation. Ingredients susceptible to oxidation, such as valuable vitamins, highly sensitive active pharmaceutical ingredients (APIs) or unsaturated fatty acids in food samples, are inevitably destroyed by this process, which completely skews the subsequent analysis. The physical solution: the flow breaker principle The IKA Silentstream tackles the physical cause of this problem head-on. The ring-shaped component is simply slid from below over the shaft of the dispersing tool (for example, the T 25 series) and positioned within the liquid medium. Thanks to its specially calculated, asymmetrical geometry, the Silentstream acts as a highly effective flow disruptor (flow disruptor). It disrupts the uniform rotational movement of the liquid generated by the rapidly rotating rotor. The liquid is slowed down by the Silentstream and redirected into a chaotic, predominantly axial flow. The result is absolutely astonishing: The rotation of the entire fluid mass comes to a near standstill, the surface of the medium instantly stabilises and the deep, air-sucking vortex disappears completely. The disperser can continue to operate at maximum speed and full grinding capacity, but now draws in only pure liquid instead of a destructive air-liquid mixture. Time savings and cost-effectiveness (TCO) in production In addition to the dramatic improvement in the quality of your end products, using the IKA Silentstream offers an invaluable economic advantage. If you have previously had to disperse highly foaming samples, you will be familiar with the problem of extremely long waiting times: you had to switch off the disperser after just a few seconds and wait for the voluminous foam to subside before you could continue the process. Alternatively, you had to add expensive chemical defoamers (antifoam agents), which distorted the chemical composition of your pure sample. With the Silentstream, these forced pauses are completely eliminated. You can complete the dispersion process in a single, continuous and rapid pass. This drastically reduces process times in your laboratory, increases daily sample throughput and significantly lowers the laboratory’s total cost of ownership for sample preparation. Occupational health and safety and seamless system integration A further positive side effect of the stabilised liquid surface is the substantial improvement in occupational health and safety. As the strong vortex and chaotic wave formation against the vessel wall are suppressed, the splashing of potentially hazardous, hot or toxic sample liquids out of the open beaker is extremely effectively prevented. The fume cupboard remains clean, and staff are protected. The Silentstream is manufactured from high-quality, chemical-resistant materials that easily withstand the common solvents, acids and alkalis encountered in everyday laboratory work. Thanks to its flow-optimised design, it can be cleaned very easily and thoroughly after use, leaving no residue, which prevents dangerous cross-contamination between different sample batches and ensures compliance with strict GLP guidelines. Invest in this unassuming yet technologically outstanding accessory to realise the full potential of your IKA disperser and produce flawless, air-free and highly stable dispersions. Technical data Function: Flow breaker / flow stabiliser (baffle) Mode of action: Prevents vortex formation and the ingestion of air Analytical benefit: Prevents oxidation of sensitive active ingredients and foam formation Quality benefit: Produces homogeneous, air-bubble-free emulsions and suspensions Health and safety benefit: Prevents the medium from being ejected at high speeds Compatibility: Designed for mounting on the shaft of IKA dispersion tools (ideally for standard tool diameters of the T 25 series) Handling: Can be slid onto the tool shaft without the need for tools Cleaning: Easy-to-clean, chemical-resistant surfaces Contents of delivery 1 x IKA Silentstream flow breaker (Important note: The essential IKA drive motor, as well as the dispersing tool and the stand system, are available separately and are expressly not included in this scope of delivery.) Individual requirements & accessories To make the best use of this accessory, you will need a high-performance drive such as the IKA T 25 digital or T 25 easy clean control, as well as the appropriate dispersion tool (e.g. from the S 25 N series). If, despite the Silentstream, you are working with extremely volatile solvents that must not be allowed to escape into the ambient air, we recommend switching to fully vacuum-sealed reactor systems with the corresponding KD dispersing tools. Our experienced procurement service will be happy to advise you on selecting the ideal tool sizes and establishing optimal Standard Operating Procedures (SOPs) for your foam-free sample preparation.