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Stirrers

IKA RW 20 Digital Overhead Stirrer Package

RW 20 Digital Laboratory Stirrer Package

The RW 20 Digital Package is a bestselling overhead laboratory stirrer designed for reliable mixing, stirring, and agitation in research, industrial, and educational laboratories. Featuring a durable ergonomic design and precise digital control, it delivers consistent performance for a wide range of laboratory applications.

Key Features

  • Digital display for accurate speed monitoring and control
  • Robust, slimline ergonomic design for long-term laboratory use
  • Enhanced engineering based on the trusted RW 20 series platform
  • Constant power-drive technology maintains stable speed under changing loads
  • Two adjustable speed ranges for universal applications
    • 60 – 2,000 rpm operating range
  • Push-through agitator shafts (when stationary) for flexible setup
  • Suitable for stirring volumes of up to 20 litres (H2O)
  • Ideal for mixing liquids, suspensions, and viscous samples

Applications

Perfect for:

  • Chemical laboratories
  • Pharmaceutical research
  • Academic and university labs
  • Quality control environments
  • Industrial mixing applications

Scope of Delivery

The RW 20 Digital Package includes:

  • RW 20 Digital overhead stirrer
  • R 1826 Plate stand
  • R 182 Boss head clamp
  • R 1342 4-bladed propeller stirrer

 

Technical Data

Stirring quantity max. per stirring position (H2O) 20 l
Motor rating input 70 W
Motor rating output 35 W
Speed display LED
Speed range 60 - 2000 rpm
Viscosity max. 10000 mPas
Output max. at stirring shaft 26 W
Permissible ON time 100 %
Torque max. at stirring shaft 150 Ncm
Torque max. at stirring shaft at 60 1/min (overload) 300 Ncm
Torque max. at stirring shaft at 100 rpm 150 Ncm
Torque max. at stirring shaft at 1000 rpm 24 Ncm
Speed range I (50 Hz) 60 - 500 rpm
Speed range II (50 Hz) 240 - 2000 rpm
Speed range I (60 Hz) 72 - 600 rpm
Speed range II (60 Hz) 288 - 2400 rpm
Speed adjustment stepless
Setting accuracy speed ±1 rpm
Deviation of speed measurement ±30 rpm
Stirring element fastening chuck
Chuck range diameter 0.5 - 10 mm
Hollow shaft, inner diameter 10.5 mm
Hollow shaft (push-through - when stopped) yes
Fastening on stand extension arm
Extension arm diameter 13 mm
Extension arm length 160 mm
Speed control mechanical
Nominal torque 1.5 Nm
Dimensions (W x H x D) 88 x 294 x 212 mm
Weight 3.1 kg
Permissible ambient temperature 5 - 40 °C
Permissible relative humidity 80 %
Protection class according to DIN EN 60529 IP 20
Voltage 220 - 240 V
Frequency 50/60 Hz
Power input 72 W

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