Gearboxes GS

AUMA worm gearboxes are used for the operation of part-turn valves and special valves (dampers, flue gas dampers, etc.).


  • Type of duty: Short-time duty S2 - 15 min (Open-close duty) and inching/positioning
  • Intermittent duty S4 - 25 % (Modulating duty only bronze)
  • They can either be operated in:
    - manual operation directly via handwheel
    - motor operation (electric multi-turn actuator)
  • Swing angle 0° to 190° or multi-turn without endstop