IKA RW 20 digital Package: Complete Stirrer Set with Stand and Propeller Stirrer, up to 20 l, 0009011600
€891.00
% Manufacturer's RRP: €1,188.00 25% below manufacturer's RRP
- Complete set comprising a plate stand, cross-joint and propeller stirrer
- Mixing capacity up to 20 l of water, torque up to 150 Ncm in range I
- Two speed ranges up to 2,000 rpm, infinitely variable
- Through-shaft, protection class IP 20
- 3-year IKA warranty upon registration within 90 days of purchase
Product information "IKA RW 20 digital Package: Complete Stirrer Set with Stand and Propeller Stirrer, up to 20 l, 0009011600"
The RW 20 digital Package is the compact entry-level model in IKA’s mechanical RW series and comes complete with a stand, cross-sleeve and propeller stirrer. The set can stir up to 20 l of water, with a torque of up to 150 Ncm. For those looking for a stirrer that is ready for immediate use without having to purchase a stand and stirring element separately, this package offers the ideal solution for smaller batches in the laboratory.
Two speed ranges for small batches
In range I, the speed is between 60 and 500 rpm (at 50 Hz); the torque at the stirring shaft reaches up to 150 Ncm, and up to 300 Ncm for short periods under overload at 60 1/min. In Range II, the speed increases to up to 2,000 rpm. The speed can be adjusted continuously, with an accuracy of ±1 rpm. According to the manufacturer, the basic unit can handle viscosities of up to 10,000 mPas; it is designed for thin to medium-viscosity media, which is significantly less than the 50,000 mPas of the larger RW 28 digital.
Set components and mechanics
In addition to the RW 20 digital base unit, the package includes the R 1826 plate stand, the R 182 cross-sleeve and the R 1342 four-bladed propeller stirrer. The chuck accommodates stirring shafts with a diameter between 0.5 and 10 millimetres; the hollow shaft, with an internal diameter of 10.5 mm, can be inserted even when the unit is at a standstill. The bracket for mounting the stand measures 13 mm in diameter and 160 mm in length; a temperature limiter protects the motor from overheating.
Dimensions and weight of the base unit
The weight of 3.1 kg and the dimensions of 88 x 294 x 212 mm stated in the data sheet refer to the RW 20 digital base unit alone. We can provide the total weight for the complete set, including the stand, cross-sleeve and propeller stirrer, on request; for dispatch planning purposes, the actual parcel weight is correspondingly higher than this figure. The basic unit has an IP 20 protection rating.
Additional stirring elements for the base unit
In addition to the supplied R 1342 propeller stirrer, IKA offers a wide range of stirring elements for the RW 20 digital: axially conveying propeller and centrifugal stirrers as well as helical stirrers, radially conveying dissolvers and disc stirrers, and the tangentially operating anchor stirrer R 1330. Also available as accessories are additional plate stands, a clamping holder, a stirrer shaft guard, a beaker lid and a flexible coupling. For environments requiring validation, IKA provides qualification and factory calibration certificates, as well as IQ/OQ documents for the unit.
Typical applications
- Stirring of small batches up to 20 l in the laboratory
- Ready-to-use set with no need to purchase a separate stand
- Powerful stirring in range I, fast stirring in range II up to 2,000 rpm
- Mixing processes with viscosities up to 10,000 mPas
Positioning within the RW series
Within the mechanical RW series, the RW 20 digital Package is the smallest model and the only one supplied as a complete set with a stand. For larger batches up to 80 l and 900 Ncm, the RW 28 digital is available; for batches up to 200 l and 3,000 Ncm, the RW 47 digital is available. Those looking for electronic speed control with an LCD display instead of mechanical control will find the EUROSTAR 20 digital to be a suitable alternative in a similar performance class.
Technical details
| Max. mixing volume (H2O) | 20 l |
| Motor power input / output | 70 W / 35 W |
| Speed range I / II | 60 to 500 rpm / 240 to 2,000 rpm |
| Max. torque at the stirring shaft | 150 Ncm |
| Max. viscosity | 10,000 mPas |
| Chuck clamping range | 0.5 to 10 mm |
| Hollow shaft, internal diameter | 10.5 mm, can be passed through when stationary |
| Arm diameter / length | 13 mm / 160 mm |
| Protection class | IP 20 (DIN EN 60529) |
| Permissible ambient temperature / humidity | 5 to 40 °C / 80 % |
| Dimensions of base unit (W x H x D) | 88 x 294 x 212 mm |
| Weight of base unit | 3.1 kg |
| Connected load | 220 to 240 V (additional voltage variant 100 to 115 V available) |
Scope of delivery
- RW 20 digital stirrer (base unit)
- R 1826 plate stand (ID no. 0003160100)
- R 182 cross-sleeve (ID No. 0002657700)
- R 1342 propeller stirrer, 4-bladed (ID No. 0000741000)
We can confirm on request whether a chuck key is included.
Warranty and procurement service
IKA provides a manufacturer’s warranty for the RW 20 digital Package: 2 years, extended to 3 years upon registration at ika.com/register within 90 days of purchase. For additional stirring elements or a larger model from the RW series, LT Laborhandel’s procurement service will handle the configuration; the full range of stirring and mixing equipment is available in the shop.
Fits
Promotional item of the IKA Specials Q4/2026, valid until 31 December 2026. The struck-through price is IKA's recommended retail price. Our promotional price is net.The IKA RW 20 digital stirrer (MPN 0003593000) is the digital further development of the proven RW 20 series and combines a mechanically controlled drive with an LED digital display for the speed. Anyone who regularly has to move stirring volumes of up to 20 litres of water in the laboratory and wants to switch between powerful, low-speed and fast, high-speed stirring will find a robust working tool for daily use here.Mechanical gearbox with two speed rangesThe RW 20 digital has a gearbox with two speed ranges that is switched manually by lever. Range I covers 60 to 500 rpm and delivers a high torque of up to 150 Ncm at the stirring shaft, suitable for highly viscous media of up to 10,000 mPas, pastes or larger volumes. Range II extends from 240 to 2,000 rpm and is suitable for low-viscosity media and fast dispersing. At a mains frequency of 50 hertz, the ranges are 60 to 500 rpm (range I) and 240 to 2,000 rpm (range II), and at 60 hertz correspondingly 72 to 600 rpm and 288 to 2,400 rpm. The maximum torque at the stirring shaft is 150 Ncm at 100 rpm and falls to 24 Ncm at 1,000 rpm; for a short time, an overload of up to 300 Ncm is even permissible at 60 1/min.Precision through LED digital displayWhile power transmission is mechanical, the integrated LED digital display on the front of the unit ensures a speed that can be read at any time and is reproducible. Setting is continuous, the setting accuracy is ±1 rpm, and the deviation of the speed measurement is ±30 rpm. The nominal torque of the drive is 1.5 Nm at a power consumption of 70 watts and an output power of 35 watts. The unit is designed for continuous operation at 100 percent duty cycle.Pass-through hollow shaft for flexible height adjustmentA practical detail in everyday laboratory work is the pass-through stirring shaft (hollow shaft) with an internal diameter of 10.5 millimetres. It makes it possible to adjust the height of the stirring tool in the chuck (clamping range 0.5 to 10 millimetres) without having to realign the entire stirrer on the stand. The shaft is adjusted at standstill only. The boss rod for mounting on the stand has a diameter of 13 millimetres and a length of 160 millimetres.Typical applicationsWith its high torque in the lower speed range and a stirring volume of up to 20 litres, the RW 20 digital is technically suited for:Universal stirring tasks in the laboratory with changing batch sizesHomogenising and dispersing medium-viscosity to higher-viscosity media of up to 10,000 mPasTeaching and industrial laboratories with frequently changing usersRoutine operation in which it is necessary to switch between powerful and fast stirringSelection guide: stirring mechanically or electronicallyWithin the IKA stirrer range, the RW 20 digital described here, with its mechanically controlled drive, is contrasted by the compact NANOSTAR 7.5 digital with electronic BLDC control. For stirring volumes of up to 20 litres, high torque in the lower speed range and robust continuous operation, the RW 20 digital is the right choice. If, on the other hand, no more than 5 litres are moved and a particularly compact, electronically controlled design is required, for example in tight space conditions in a fume hood, the NANOSTAR 7.5 digital is the more space-saving alternative.Differences from larger models of the RW seriesIf a stirring volume of 20 litres is not sufficient for the planned batch, IKA continues the mechanical RW series in larger sizes: the RW 28 digital for stirring volumes of up to 80 litres and the RW 47 digital for stirring volumes of up to 200 litres. For the majority of laboratory applications with batches of up to 20 litres, the RW 20 digital described here remains the more compact and more economical choice.Technical detailsMax. stirring volume (H2O)20 lMax. viscosity10,000 mPasSpeed controlmechanicalSpeed range I / II60 to 500 rpm / 240 to 2,000 rpm (at 50 Hz)Speed range I / II (60 Hz)72 to 600 rpm / 288 to 2,400 rpmSpeed setting methodcontinuousSetting accuracy / speed deviation±1 rpm / ±30 rpmSpeed displayLEDMotor power, input / output70 W / 35 WNominal torque1.5 NmMax. torque at the stirring shaft150 Ncm (at 100 rpm), 300 Ncm overload at 60 1/minTorque at the stirring shaft at 1,000 rpm24 NcmMax. power at the stirring shaft26 WPermissible duty cycle100 %Stirring tool mountingChuck, clamping range 0.5 to 10 mmHollow shaft, internal diameter10.5 mm, pass-through at standstillStand mountingBoss rod, Ø 13 mm, length 160 mmProtection classIP 20 according to DIN EN 60529Dimensions (W x H x D)88 x 294 x 212 mmWeight3.1 kgConnection values220 to 240 V, 50/60 Hz, 72 W (other voltage variants 100 to 115 V available)Scope of delivery1 x RW 20 digital1 x chuck keyA stand and a cross clamp for mounting as well as a suitable stirring tool are required for operation but are not included in the scope of delivery.Use, installation, maintenance and disposalAccording to protection class IP 20, the RW 20 digital is protected against solid foreign objects from 12.5 millimetres, and contact with splashing water must be avoided. The switching lever for the two speed ranges should only be operated with the motor stopped, as should the height adjustment of the pass-through hollow shaft in the chuck. For a secure stand, a sufficiently heavy stand with a stable cross clamp is recommended, especially when using the high torque in the lower speed range. At the end of its service life, the unit as electrical equipment does not belong in household waste but in the separate collection of waste electrical equipment.Individual requirements & procurement serviceOperating the RW 20 digital requires a stand (for example an IKA base plate stand), a suitable cross clamp and a stirring tool matched to the application, for example propeller, turbine, anchor or dissolver stirrers. A stirring shaft guard or a quick-release chuck can also be added if required. Through our procurement service , LT Laborhandel will gladly put together a suitable stirring set-up for you from our range of stirring and mixing technology .Frequently asked questionsIs a stand included in the scope of delivery?No, a stand, cross clamp and stirring tool are required for operation but are not included in the scope of delivery.What is the maximum stirring volume possible with the RW 20 digital?Up to 20 litres of water, at a maximum permissible viscosity of 10,000 mPas.How do you switch between the two speed ranges?Via a mechanical lever on the front of the unit, which should only be operated with the motor stopped.Can the stirring tool be adjusted in height without moving the stand?Yes, via the pass-through hollow shaft in the chuck, adjustable at standstill.Is there an electronically controlled model as an alternative?For more compact applications of up to 5 litres, the electronically controlled NANOSTAR 7.5 digital is suitable.What happens if the stirring shaft is overloaded?For a short time, an overload of up to 300 Ncm at the stirring shaft is permissible at 60 1/min; beyond that, the load should be reduced.
Matching accessories
The IKA R 1330 anchor stirrer (MPN 0002022300) is a stirring element made of stainless steel 1.4571 for overhead stirrers. It has a stirrer diameter of 45 mm and a shaft with a diameter of 8 mm and a length of 350 mm. It is intended for medium to highly viscous media that are stirred at low speeds, up to a maximum of 1,000 rpm.A polymer batch that sits thick in the vessel, or a mixture with a high mineral content that is to stay evenly distributed: the R 1330 is intended for tasks like these.Tangential flow of the anchor stirrer with a high shear rate at the edgeThe anchor stirrer moves the medium tangentially, that is, in the circumferential direction around the stirrer axis, and not axially like a propeller stirrer. The shear rate is high at the edge of the stirrer, and few deposits are left on the vessel wall. With viscous batches this matters, because material on the wall is withdrawn from the mixing process.It is used at low speeds. The stirrer diameter of 45 mm determines the minimum width of the opening of the stirring vessel.Typical applicationsHomogenising medium to highly viscous liquids in the laboratoryStirring in polymer reactionsEvenly distributing high mineral content in liquidsBatches where little material should be deposited on the vessel wallWorking at low speeds on an overhead stirrerSuitable for IKA overhead stirrers with an 8 mm chuckThe shaft with a diameter of 8 mm fits into chucks for an 8 mm shaft. These include the IKA overhead stirrers EUROSTAR 20, 40, 60, 100, 200 and 400 (digital and control), RW 20 digital as well as MINISTAR, MICROSTAR and NANOSTAR. At LT Laborhandel you will find EUROSTAR 20, 40, 60, 100, 200 and 400 digital, RW 20 digital, MINISTAR 20, 40 and 80 digital, MICROSTAR 7.5 digital and NANOSTAR 7.5 digital.Whether a stirrer drives the anchor stirrer safely in your medium depends on the viscosity and on the torque of the stirrer. The more viscous the batch, the more torque is required. Therefore check before purchase whether your device is sufficient for your batch and whether the chuck accepts a shaft of 8 mm.MaterialThe wetted parts of the R 1330 are made of stainless steel 1.4571. The weight of the stirrer is 0.151 kg.Technical detailsTypeAnchor stirrerStirrer diameter45 mmShaft diameter8 mmShaft length350 mmMaximum speed1,000 rpmFlowtangentialSuitable formedium to highly viscous mediaMaterial, wetted partsStainless steel 1.4571Weight0.151 kgMountChuck for 8 mm shaftScope of delivery1 x IKA R 1330 anchor stirrer (MPN 0002022300). The overhead stirrer is not included in the scope of delivery.Individual requirements and procurement serviceIf your medium requires a different flow pattern, we carry the IKA R 1342 propeller stirrer for the RW 20 digital, for low to medium viscosity liquids. A stirrer shaft protector, for example the IKA R 401, also fits the overhead stirrer setup. Our procurement service helps with the choice of the suitable stirring element and the overhead stirrer for your batch.
The IKA R 301 stirrer shaft guard (MPN 0002603000) is an essential mechanical safety component for the safe and accident-free operation of laboratory overhead stirrers. During intensive mixing, dispersing or homogenisation processes, considerable kinetic forces act on rotating stirrer shafts. This professional shaft guard forms a physical barrier that reliably protects laboratory staff from accidental contact with the rotating parts. It effectively prevents clothing, hair or laboratory gloves from being drawn in, making the safety device a key component in risk assessments and ensuring compliance with strict national and international health and safety guidelines. Stepless length adjustment for flexible experimental set-ups From a process engineering perspective, the R 301 model excels thanks to its high degree of telescopic flexibility. The guard can be adjusted axially steplessly within a length range of 190 to 310 mm and locked into place precisely. This variable geometry allows for precise adaptation to different shaft lengths, vessel heights and varying immersion depths of the stirring elements. Laboratories thus benefit from a highly adaptable protective system that can be flexibly integrated into changing experimental set-ups without compromising workplace ergonomics. Unrestricted process control thanks to a high-quality Plexiglas matrix The cylindrical protective screen is made entirely from a high-purity, mechanically stable Plexiglas matrix. This material combines minimal weight with outstanding optical clarity. Laboratory staff are able to monitor the mixture, transient flow patterns, phase transitions or any boiling delays in the sample vessel at all times, with absolutely no restrictions and without any risk of error. At the same time, the Plexiglas structure offers effective protection against transient media splashes and can be cleaned quickly and without leaving any residue. Technical details Design & Material Product designation: R 301 Operating principle: Physical shielding of rotating drive components Protective screen material: Highly transparent, impact-resistant Plexiglas Length adjustability: Infinitely adjustable axially from 190 to 310 mm Optical properties: Uncompromising visual process monitoring without distortion Compatibility & Installation Direct mounting on the stirrer: Suitable for IKA RW 20 digital, RW 28 digital and the entire EUROSTAR series Mounting with accessories (R 301.1 stand mount required): For compact models such as the IKA NANOSTAR 7.5 digital, MINISTAR series, MICROSTAR series and Eurostar 400 Exclusion criterion: Not compatible with the RW 47 D large-scale stirrer (the R 302 variant is required for this) Customs tariff number (HS Code): 84799070 Contents of delivery 1 x IKA R 301 stirrer shaft guard (MPN: 0002603000) 1 x Mounting and fixing element set 1 x Quick guide / Safety guide for accident prevention in the laboratory Customised requirements & accessories To set up a fully compliant, safe and digital stirring workstation, we offer a comprehensive range of complementary IKA system peripherals: R 301.1 stand mount: An essential accessory for the stable, mechanical fixing of the stirrer shaft guard to compact stirrer drives such as the MINISTAR or MICROSTAR series. Overhead stirrers: Perfectly matched to the reliable IKA RW 20 digital drive systems or the high-end models of the EUROSTAR series (basic and control). Laboratory stands & clamps: Extremely stable plate and telescopic stands (e.g. R 2722) as well as robust cross clamps (e.g. R 270) for vibration-free securing of the entire stirring assembly. Make use of our technical B2B procurement service to ensure the reliable design of your laboratory set-ups.