Analytical instruments - VELP Scientifica
VELP Scientifica - Via Stazione, 16 - 20865 Usmate (MB) ITALY - Tel. +39 039 62 88 11 - Fax. +39 039 62 88 120
Analytical instruments - VELP Scientifica
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OHS 20 Digital Overhead Stirrer
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VELP Inc. U.S.
8.30 AM – 5.30 PM (EST)

OHS 20 Digital Overhead Stirrer

Overhead stirrer with 20 Ncm constant torque, integrated timer SmartChuck and digital display. Ideal for basic lab applications.

VELP Scientifica

Safe Operations

  • Extremely resistant sealed case
  • IP 54 Protection class is a guarantee of durability also when working in aggressive environment
  • Full protection in case of overload, overtemperature and over current
  • Lock key to prevent unintentional modification of the settings
  • Easy Knob to navigate the menu and to activate the stirring
  • OHS 20 Digital is designed for the longest lifespan and guaranteed by 3 years warranty

High Performance

  • Digital display to precisely set the working conditions
  • Brushless motor ensures stable torque of 20 Ncm through the whole speed range
  • Electronic speed control from 30 to 2000 rpm
  • Maximum volume of 25 liters
  • Maximum viscosity of 10.000 mPa
  • SpeedServoTM torque compensation technology
  • Silent motor even at the maximum speed

Premium Features

  • The new SmartChuckTM makes easy and convenient the shaft changing without any tool
  • Integrated timer for unattended operation with automatic switch off
  • Torque Monitoring Display with 4 LED segments for real-time information on viscosity change
  • USB interface for installing Software updates



VELP OHS Series Overhead Stirrers
VELP OHS Overhead Stirrers guarantee state-of-the-art stirring power maintaining the maximum torque at any speed and are designed to offer you a solution fitting your application including continuous work in challenging environments. Discover all the premium features such as Brushless motor, Constant Torque, SmartChuck™, IP54 protection. Watch now the video!


  Description Power Supply Code
OHS 20 Digital 230V/50-60Hz F20100494
OHS 20 Digital 115V/60Hz F20110494


A00000366   A00000369   A00001301   A00001302   A00001304  
A00000366Universal H-Stand
A00000369Telescopic H-Stand
A00001301Double clamp
A00001302Ribbon clamp
A00001304Stirring shaft with floating blade
A00001305   A00001306   A00001307   A00001308   A00001309  
A00001305Stirring shaft with folding blade
A00001306Stirring shaft with fixed blade
A00001307Stirring shaft with propeller
A00001308Stirring shaft with paddle, 6 holes
A00001309Stirring shaft with turbine
A00001310   A00001311   A00000381          
A00001310Stirring shaft with turbo propeller
A00001311Stirring shaft with anchor
A00000381IQ/OQ OHS Manual