Overhead Stirrer 20L

R18,273.67 Incl VAT

20 Litre Overhead Stirrer, Speed 50-2200rpm, Overload Protection, Power: 70W, Max Viscosity: 10 000 mPas, LCD Display with RS232 interface, free software, Display shows both torque and rpm, Comes Standard with Universal Plate Stand and Crossed Stirrer 316 Stainless Steel (40cm shaft + 5cm stirrer diameter)

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SKU: E-OHS20-P Category:

Overhead Stirrer 20L is suitable for use with low, medium and high viscosity liquids including solid-liquids. overhead stirrers can be used in a wide variety of stirring and mixing applications such as chemical synthesis, pharmaceutical, physical and chemical analysis, cosmetics, food, healthcare, petrochemical, biotechnology, material science, cement, adhesives, polymers and more.
Universal laboratory overhead stirrer uses microprocessor controlled technology to accurately control rotational speed between 50 and 2200 rpm. Precise speed control even under viscosity variations, torque monitoring indicates the changes in viscosity. Available in two sizes for stirring of up to 20 liters or 40 liters. Free software is downloadable to allow PC integration via a RS232 port for documenting and controlling all operating parameters. Safety Circuits designed to ensure no damage to the stirrer motor under overloading conditions. Slow start up to prevent sample spillage or overflow.

Overhead Stirrer 20L Features:

  • 20 Litre Stirring Capacity
  • Includes E-OHS-US and E-CS5/40-SS
  • Advanced LCD display for accurate setting of speed and display of torque
  • Microprocessor controlled slow start up with gradual acceleration prevents splashing and spillage of liquids
  • Push-through stirring shaft design allows for easy
  • Reliable and ergonomic design
  • Continuous operation
  • Brushless DC motor
  • Explosion proofed
  • Keyless chuck design for easy shaft adjustment and removal
  • 10 mm chuck allow for a large range of shafts to be used
  • RS232 PC Interface for variable control
  • Overload protection
  • CE Certified
  • 2 year warranty


  • Universal Stand
  • Base: 20cm W x 31cm D x 78cm H
Specifications E-OHS20-P E-OHS40-P
Maximum Stirring Capacity (H2O)  [L] 20 40
Motor Rating Input [w] 60 120
Motor Rating Output [W] 50 100
Motor Drive Brushless DC Brushless DC
Speed Range [rpm] 50 – 2200 50 – 2200
Speed Display LCD LCD
Speed Display Resolution [rpm] ±1 ±1
Speed Display Accuracy [rpm] ±3 ±3
Viscosity Max [mPas] 10000 50000
Power [W] 70 130
Torque Max at Stirring Shaft [Ncm] 40 60
Torque Display LCD LCD
Stirring Element Fastening Keyless Chuck Keyless Chuck
Chuck Range Diameter [mm] 0.5 – 10 0.5 – 10
Temperature No No
Timer No No
Explosion Proofed Yes Yes
Protection Class Acc. to DIN EN 60529 IP42 IP42
Overload Protection LED Lights, Motor Automatically Stops
Motor Protect LED Lights, Motor Automatically Stops
RS232 Computer Interface Yes Yes
PC Software Included Yes Yes
Dimensions [W x H x D] (mm) 83 x 220 x 186 83 x 220 x 186
Weight [kg] 2.6 2.8
Housing Material
Permissible Ambient Temperature [°C] 5 – 40 5 – 40
Permissible Relative Humidity [%] 80 80
Voltage [VAC] 100 – 240 100 – 240
Frequency [Hz] 50/60 50/60

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