High pressures call for multi-turn actuators providing high torques. By combining a multi-turn actuator with a GHT multi-turn gearbox, the torque range can be expanded to 120,000 Nm.


Design features

  • Worm gearboxes for torques up to 120,000 Nm
  • Worm wheel made of bronze
  • Without end stops
  • Lifetime according to EN 15714-2
  • Valve attachments according to EN ISO 5210 and EN ISO 5211
  • Suitable for electrical open-close duty and modulating duty


  • With stem nut for use as screw jack
  • Stem protection tube
  • Second shaft end
  • ATEX approval
  • High and low temperature version

Ambient conditions

  • Suitable for ambient temperatures –40°C to +80°C
  • Top quality corrosion protection with AUMA powder coating
  • IP68


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