Overhead Stirrers

Range of Performance

40 Ncm

Performance graph of







Hei-TORQUE Core - Technical Data

Number of speed gears1
Rotation speed range20 - 2,000 rpm
Rotation speed indicatordigital
monochrom 2"
Speed controlelectronic
Max. torque40 Ncm
Torque indicatorsymbol
Overheat protectionautomatic cut-out
Viscosity max.10,000 mPa s
Stirring cap. (H2O), max.25 l
Throught-shaft design1
Shaft diameter, max.10.5 mm
Counter/ Timer1
Analog / digital interface-
Power rating motor input105 W
Protection class IEC 60529IP 42

Hei-TORQUE Core - AddOns

Stirring Tools

Large selection for the optimal configuration

Hei-TORQUE Core - Accessories

Flex coupling

Flexible shaft

Shaft guard

Shaft guard adapter set

Stand S2 XXL

Telescope stand

Universal stand S2

Stirrer guide (NS 29/32 PTFE)

Downloads & Video


Hei-TORQUE at a glance Download
Configuration tool Heidolph stirring system Download
Hei-TORQUE-Certificate-for-continuous-operation.pdf Download
CE-Ruhrwerke-Overhead-stirrer.pdf Download
GENTLE POWERHOUSES – Laboratory and Magnetic Stirrers Download
Operation Manual Hei-TORQUE Core Download



The technical data do not match exactly due to the various developments in the meantime. Nevertheless, comparable devices are staggered as follows ...

The Hei-TORQUE Expert models shows bars on the display, indicating changes in the torque or viscosity of the fluid.

The Hei-TORQUE Ultimate models show the actual torque in Ncm with one decimal place.

The tightening torque of the quick release chuck is individually adjustable ...

The numbering on the Hei-TORQUE models describes the respective torque of the overhead stirrer. For example ...

The Quick-Chuck is made of polyamide (PA) and thermally stable up to 115 ° C.