IKA S 25 D - 10 G - KS disposable dispersing tool (12 pieces), plastic, Ø 10 mm, 0003452200

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, immense 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 completely eliminate this risk. For each new patient or environmental sample, you remove a completely fresh, 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 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 of day-to-day laboratory operations regularly proves exactly the 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 plain 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 disposable plastic dispersing tools

(Important note: The required T 25 drive motor, as well as any sample vessels or protective tubes that may be required, 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 hermetic aerosol protection. Do you need to process significantly larger sample volumes (up to 500 ml)? If so, 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.