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R20 Mini Overhead Stirrer

R20 Mini Overhead Stirrer

Volume: 35L | 20 NCM | RPM: 2000


Price: $1,160.00

Call 805-709-1056 to Order

Volume: 35L | 20 NCM | RPM: 2000
Price: $1,160.00
Call 805-709-1056 to Order

If you need a small overhead stirrer with a high IQ check out the CAT R20 mini-stirrer designed for samples to 35 liters (H<sub>2</sub>O equivalent). Stepless adjustable speeds from 50 to 2,000 rpm are shown on the easily read liquid crystal display panel that has a dial speed control knob and the on/off rocker switch for a controlled splash-avoiding soft start and stop.

The CAT R20 mini-stirrer’s quiet, maintenance free 60-watt brushless motor is equipped with overheat/overload protection, develops a maximum torque of 20Ncm and handles samples with viscosities to 10,000 mPas.  It comes equipped with a support rod, Allan key and clamp lever for correctly positioning the stirring tools in sample containers.

Its keyless chuck lets you quickly switch out blade, centrifugal and propeller configurations with shaft diameters from 2mm to 8mm in diameter.  The RS 232 interface can be used to operate the unit or record operating data to a PC.

Need an overhead stirrer for small research projects?  The CAT R20 may be just what you’re looking for.
Stirring Shaft Application


R20 Specifications
Power Supply 24V DC, 60W
Motor Specification
  • Maintenance-free, brushless motor
  • Microprocessor controlled for easy operation and accuracy
  • Soft-start and soft-stop prevents splashing of liquid
  • Precise adjustable motor speed from 50 to 2000 rpm
  • Max. torque 20Ncm
  • Silent belt drive transmission
Multistep Safety System Detects and protects against the following dangerous situations:

  • Rotor stuck/block detection
  • Motor overtemperature
Ambient Temperature Range 5- 40°C
Max. humidity 80% RH
Safety class acc. to DIN 40050 IP42
Dimensions 68 x 121,5 (315mm with rod) x 102mm lengths incl. keyless chuck 165mm
Weight 1,3kg



The following accessories are available for the R20:

  • Pedestal Stand:  Part #60491  $227.00
  • Crossover Clamp:  Part No: 60492   $35.00
  • Stirring Shaft Protector: Part #20618-60 $183.00
  • Boss-Heads: Part #60492-00 $25.00




R20 Instruction Manual



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