AUMA manufactures part-turn gearboxes which are used wherever a 90? swivel movement is required for the operation of a valve or damper. Being a part of that the valve position is transmitted via several stages to the limit switching in the multi-turn actuator, the accumulation of the backlashes can result in a hysterics. Design features:

Direct connection to the worm wheel [hardly any backlash]

Contact less end position sensors [Hall sensors]

Modular design - can easily be adapted to different gearbox sizes

Can be positioned at every 90?

Continuous mechanical position indication

Generation of a end position signal for swivel movements between 80? and 100?

for transmission to the control room

Continuous direct travel monitoring for transmission to the control room [option]