IKA LR-2.ST the High-Performer Laboratory Reactor, 500 to 2000 ml, up to 150,000 mPas, 20013291
€15,934.35
% Manufacturer's RRP: €16,773.00 5% below manufacturer's RRP
- Laboratory reactor for 500 to 2000 millilitres working volume
- Processes media with a viscosity of up to 150,000 mPas
- Most powerful stirrer in the entire LR-2.ST series
- Borosilicate glass reactor vessel for vacuum operation down to 25 mbar
- Working temperature range from room temperature to 230 °C
- Detachable wireless control unit (WiCo) for operation in the fume hood
Product information "IKA LR-2.ST the High-Performer Laboratory Reactor, 500 to 2000 ml, up to 150,000 mPas, 20013291"
Tough melts, concentrated polymer solutions or pasty adhesive formulations push many laboratory stirrers to their limits long before the actual recipe is finished. The IKA LR-2.ST the High-Performer laboratory reactor (MPN 20013291) is the most powerful version of the LR-2.ST reactor platform and processes media with a viscosity of up to 150,000 mPas at a working volume of 500 to 2000 millilitres. It is aimed at laboratories that regularly work with extremely high-viscosity media and need a noticeably higher torque reserve than the other three versions of the series offer. As the top configuration of the platform, it shares the reactor vessel, stand system and safety concept with the smaller variants, but differs significantly from them in the drive design.
Highest torque level in the LR-2.ST series
The High-Performer is fitted with the most powerful laboratory stirrer of the LR-2.ST platform and covers a maximum viscosity of 150,000 mPas, considerably more than the 100,000 mPas of the Allrounder and the 50,000 and 70,000 mPas of the two smaller versions. The speed range of 8 to 290 revolutions per minute remains consistent within the series, so process parameters can still be compared between the four LR-2.ST versions. The microprocessor-controlled regulation keeps the speed stable even when a medium thickens or hardens noticeably in the course of the reaction.
Reactor vessel and lid as in the rest of the series
The 2.0-litre borosilicate glass reactor vessel is designed for a working volume of 500 to 2000 millilitres and operates in a temperature range from room temperature to 230 degrees Celsius at an achievable vacuum of 25 mbar. The LR2.10 reactor lid offers three openings in standard ground joint NS 29/32 and two more in standard ground joint NS 14/23 for temperature probes, reflux condensers or further accessories. FFPM seals (perfluoroelastomer) ensure reliable sealing is maintained even under the high mechanical loads caused by viscous media and across the entire temperature range of the system.
Compact stand system for the strongest drive in the series
With dimensions of 460 x 1240 x 430 millimetres, a telescopic foot stroke of 390 millimetres and a weight of around 25 kilograms, the High-Performer takes up no more space than the other LR-2.ST versions despite the stronger drive. The detachable wireless control unit WiCo allows control from outside the fume hood, which provides additional distance from the reactor when stirring particularly viscous or chemically aggressive media. Permissible ambient temperatures are 5 to 40 degrees Celsius at a maximum of 80 per cent relative humidity, values that a normally air-conditioned laboratory room generally meets.
Five lid openings for additional sensors
The High-Performer also offers a total of five standard ground joint openings via the LR2.10 reactor lid. Particularly with very viscous or hardening media, close temperature monitoring at several points of the reactor is often useful, as is the connection of a gas inlet and outlet line if inert gas is to be introduced during the reaction or solvent vapour is to be removed. The free openings can be fitted flexibly with suitable accessories for this purpose.
For the most demanding viscosities in the series
Where the Compact Power, the Versatile and the Allrounder reach their limit at 50,000, 70,000 and 100,000 mPas respectively, the High-Performer is designed for media that must still be stirred in a controlled way beyond these values, for example highly concentrated polymer solutions, hot-melt adhesives or pasty formulations shortly before their final consistency. If a project is likely to involve viscosities regularly in the six-figure mPas range, this version saves the later switch from a smaller LR-2.ST variant.
Typical applications
The LR-2.ST the High-Performer is suitable for stirring and mixing tasks at the upper end of the viscosity spectrum, where other laboratory reactors reach their performance limit:
- Processing highly concentrated polymer solutions and polymer melts on a laboratory scale
- Homogenising adhesives, sealants and other pasty formulations
- Chemical syntheses with a strong rise in viscosity towards the end of the reaction, for example in polycondensations
- Materials research on high-viscosity formulations shortly before their final consistency
- Scale-up preliminary trials for production processes in which extremely viscous media already arise in the laboratory
- Special applications in which smaller LR-2.ST versions are no longer sufficient because of an insufficient torque reserve
- Research on hot-melt systems and other masses that are solid at room temperature and highly viscous when warm
- Quality assurance on high-viscosity batches shortly before release, when consistency is to be tested close to production conditions
Technical details
| Working volume | 500 to 2000 ml |
| Speed range | 8 to 290 rpm |
| Max. viscosity | 150,000 mPas |
| Working temperature range | Room temperature to 230 °C |
| Achievable vacuum | 25 mbar |
| Material (media-contacting parts) | Borosilicate glass, stainless steel 1.4571, PTFE, FFPM |
| Reactor lid connections | 3 x NS 29/32, 2 x NS 14/23 |
| Dimensions (W x H x D) | 460 x 1240 x 430 mm |
| Telescopic foot stroke | 390 mm |
| Weight | approx. 25 kg |
| Permissible ambient temperature | 5 to 40 °C |
| Permissible relative humidity | max. 80 % |
| Control | Microprocessor-controlled, with torque trend display |
| Remote control | Detachable wireless control unit (WiCo) |
Scope of delivery
- 1 x LR-2.SI stand system
- 1 x LR2.10 reactor lid
- 1 x Borosilicate glass reactor vessel, 2.0 litres
- 1 x Anchor stirrer
- 1 x Laboratory stirrer of the highest power level in the LR-2.ST series
- 1 x Wireless control unit (WiCo)
Individual requirements and procurement service
For the High-Performer we offer additional accessories through our procurement service, for example further reactor vessels, temperature probes or dispersing tools for the free lid openings. We are also happy to support you with spare parts for the high-performance drive or with questions about the right choice within the LR-2.ST series. Further information and contact options can be found at lt-laborhandel.com/service.
Matching accessories
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.