Hei-TORQUE Expert 400

Overhead Stirrers

Range of Performance

400 Ncm

Performance graph of:
Hei-TORQUE Expert 400

A 2-gear stage design guarantees highest power over the entire speed range






Hei-TORQUE Expert 400 - Technical Data

Number of speed gears2
Rotation speed range10 - 400 rpm / 20 - 2,000 rpm
Rotation speed indicatordigital
monochrom 2.4"
Speed controlelectronic
Max. torque400 Ncm
Torque indicatorsymbol
Overheat protectionautomatic cut-out
Viscosity max.250,000 mPa s
Stirring cap. (H2O), max.100 l
Throught-shaft designyes
Shaft diameter, max.10.5 mm
Counter/ Timer-
Analog / digital interface-
Power rating motor input150 W
Protection class (EN 60529) IP 54

Hei-TORQUE Expert 400 - AddOns

Stirring Tools

Large selection for the optimal configuration

Hei-TORQUE Expert 400 - Accessories

Universal stand S2

Stand S2 XXL

Telescope stand

Flex coupling

Flexible shaft

Shaft guard

Shaft guard adapter set

Stirrer guide (NS 29/32 PTFE)

RS 232 cable (9-pole)

Beaker holder cpl. belt (incl. boss head)



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
Operating instructions Hei-TORQUE Expert / Ultimate Download



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

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

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 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.