Better safe than sorry—even if the power supply fails!

Whenever the application requires a defined position in the event of a power supply failure, an actuator with an integrated fail-safe spring comes into consideration.  Thanks to the patented combination of a smooth-running worm gearbox with a specially developed spring, we achieve very low current consumption in modulating duty coupled with a compact design. Thanks to the proven modularity of validated designs, we can also get your application ready for series production quickly.



  • -40°C to 140°C
  • 12 V or 24 V
  • LIN, PWN, or analogous
  • Built-in fail safe function
  • Low power consumption
  • Immediately available in Europe and North America

Variants and options

  • Customized interface of the output shaft
  • Smart or non-smart
  • Software flexibility
  • Completed validation
  • Membranes for pressure equalization

Automotive applications

  • EV thermal management
  • Euro 7 exhaust gas recirculation
  • Valves for CO2 Storage systems
  • Valve for applications with hydrogen
  • Acoustic valves

Do you have any questions about our fail-safe actuators?

Stefan Schäfer