Electro-Hydraulic AVAMO ASEH

The Actuator

The AVAMO ASEH heavy duty self-contained electro-hydraulic Scotch Yoke actuators have been developed for both on/off or modulating operations and are available as a single- or double-acting version. ASEH actuator solutions are used when there is only electrical power available. The actuators operate ball, butterfly or plug valves with torque up to 600.000 Nm. Our standard version consists of a compact and maintenance-free design with a SMART Control Unit. The SMART Control Unit is ready for hardwired communication as well as for MODBUS or Profibus communication.

The actuator is designed for longevity, ensured by bronze slide blocks and nickel or Ionit Ox plated cylinders. Chromium plated rods and custom paint jobs provide an excellent protection against corrosion.

Customer Benefits

  • State of the art actuators for critical infrastructure
  • Best quality made in Germany
  • Exceptional reliability because of high-end processing
  • Constant performance even in the harshest environments
  • Our adaptable designs adjust to your specific applications


Symmetric or canted Scotch Yoke lever

Control pressure
Hydraulic up 350 bar

up to 600.000 Nm

Temperature range
-30° - +110°C (standard)
-40° - +60°C (low temp)
-60° - +60°C (extreme temp)
0° - +160°C (high temp)

Center Body
Maintenance free, corrosion protected, welded construction

Cylinder with nickel, chromium or Ionit Ox plated running surfaces against corrosion providing a long lifetime for gaskets

Single- or double acting

End Stops
Adjustable leak free end stops +/- 5°

Available options
Manual emergency override

Stroking times
< 0,3 seconds


  • ATEX 2014/34/EU
  • PED 2014/68/EU
  • Applicable up to SIL 3 as per 61508
  • Machine directives 2006/42/EG
  • TR-TS approval

Meet our ASEH Actuator

On Duty

The mounted AVAMO ASEH Actuator with its control unit.