The PLEIGER EHS Power Pack

With our low-maintenance PLEIGER EHS Power Pack you can easily and functionally expand our hydraulic rotary and quarter-turn actuators into electro-hydraulic actuators. Electro-hydraulic actuators are an excellent solution when it comes to maximum power in the smallest of spaces. No other technology offers such a force density and combines electrical and hydraulic advantages at the same time. Our EHS Power Pack combines both the complete hydraulic drive and all electrical functions.

With this solution, hydraulic lines are no longer required and the actuator can be controlled purely electrically.

Special Features

  • With mechanical, hydraulic or electronic position indicator
  • With mechanical or hydraulic emergency operation device
  • Integrated hydraulic emergency operation (hand pump) possible
  • With permanent bus control loop connection (PCL)
  • With GL, CCS, LRS, DNV, BV, ABS approval certificates
  • With explosion protection class ATEX
  • “Under Medium” on request
  • Can also be used as a detached Power Pack


  • Self-sufficient drive with integrated hydraulic unit
  • Only electrical cables are required
  • No external pipes or fittings
  • Enormous cost savings
  • Small size – high torque
  • Protection class IP 67 (IP 68 on request)
  • Lower service and maintenance costs
  • Low oil quantity
  • Low noise level
  • Bronze housing, optional

Available Actuators

  • EHS-D3 – double acting rotary actuator, opened/closed and continous operation
  • EHS-SG – single-acting rotary actuator, opened/closed operation with spring return
  • EHS-S/G – single acting linear actuator for opened/closed operation with spring return
  • EHS-Q – power pack unit used for seperately installed linear or rotary actuators
  • EHS-EX – double-acting and single acting rotary and linear actuators, in explosion proof design
  • EHS-UM – double acting rotary actuator for permanent submerged opened/closed and continous valve Operation


EHS-STKG with spring return and direct attached hand pump

elektro hydraulischer antrieb federschließend esd fail safe

EHS-PVK with direct attached handpump

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