Hei-Torque Core

Category Overhead Stirrers
Manufacturer Heidolph
Country of manufacture Germany

The compact design allows for integration in closed systems, such as fume hoods, reactors, or production systems. Suitable for low- to medium-viscosity media up to 25 l.


  • Reduced to significant features and easiest operation for maximum ease of use.
  • One control knob for setting the rotational speed, pushing starts / stops the function
  • Timer
  • "Max“ button for short-term operation at maximum speed
  • Quick-Chuck with a large diameter of 10
  • can easily mix up to 25 l of low viscosity liquids
  • Torque up to 40 Ncm
  • Speed range up to 2,000 rpm
  • Viscosity up to 10,000 mPas

The large diameter of the chuck (10 mm) allows you to use even large impellers and VISCO JET® tools. This facilitates a wide variety of applications, such as homogenization, dispersing, the dissolving of agglomerates, and more.

    Key Attributes
    Maximum volume (L): 25
    Minimum Volume (L): N/A
    Speed max (rpm): 2000
    Speed min (rpm): 20
    Max temperature (◦C): N/A
    Plate:  N/A
    Plate material: N/A
    Torque max (Ncm): 40
    Controls: Digital
    Timer: Yes
    Programmable: No
    Reverse rotation: No
    Warranty (years): 3
    Weight (lbs): 5.07
    Dimensions Width (in): 2.75
    Dimensions Height (in): 11.1
    Dimensions Length (in): 7.67


    Manufacturer Specifications
    Number of speed gears 1
    Rotation speed range 20 - 2,000 rpm
    Rotation speed indicator digital
    monochrom 2"
    Speed control electronic
    Max. torque 40 Ncm
    Torque indicator symbol
    Overheat protection automatic cut-out
    Viscosity max. 10,000 mPa s
    Stirring cap. (H2O), max. 25 l
    Through-shaft design
    Shaft diameter, max. 10.5 mm
    Counter / Timer
    Analog / digital interface -
    Power rating motor input 105 W
    Protection class DIN EN 60529 IP 42



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    Hei-Torque Core Accessories