Gearbox range for high torques

Paul Boughton

The largest gearbox of AUMA’s new GHT multi-turn gearbox range can transmit up to 120,000Nm to an industrial valve. While AUMA’s SA multi-turn actuators provide a maximum torque of 32,000Nm, the torque range is virtually quadrupled when combining SA actuators with the new GHT gearboxes. 

Designed to meet the requirements for automating large-scale gate valves, examples of how the new gearboxes enable AUMA to enhance support include applications in crude oil coking or steel constructions for water systems, for example. Equipped with the appropriate output drive, AUMA’s GHT gearboxes can withstand significant axial forces and bear the load of heavy gate valve plates. 

The gearboxes are available in four sizes: GHT 320.3 (32,000Nm), GHT 500.3 (50,000Nm), GHT 800.3 (80,000Nm) and GHT 1200.3 (120,000 Nm). IP68 enclosure protection is offered and the devices are ideally suited for ambient conditions between –40 °C and +120 °C.