ST Series

24/7 operation – our endurance runner for the toughest conditions

Pleiger swivel actuators are characterized by a very long service life and high efficiency. The actuators of the ST series were developed for extreme operating conditions, and impress users with their extremely robust design. Whether for road construction, cement factories or the petrochemical industry, this actuator is indestructible.

  • Standard torque range of up to 50,000 Nm
  • Higher torque as special design upon request
  • Rotary angle of 90° up to 360°
  • Different rotary angles upon request


Special Features

  • STD = with cushioning
  • STE = with mechanical adjustable stops
  • STED = with adjustable stops and cushioning
  • STF = with flange connection
  • Also available with second shaft and electronic position transmitter


  • High torques
  • Compact design
  • Same torque in both operating directions
  • Constant torque over the entire angle of rotation
  • Low frictional losses


 – not available –

Call us now at +49 2324/398-716 or send us an e-mail with your inquiry at