FG40 EPM is an electro-permanent magnet designed for aerospace and robotic applications. It combines the advantages of electro- and permanent magnets by being able to switch between the on-state and off-state on demand (like an electromagnet); while consuming zero power in either state (like a permanent magnet). The device supports a variety of communication interfaces that enable easy integration into any end system.

FG40 EPM follows high safety and reliability standards that ensure dependable operation in hostile environments.


Three types of EPM are available:

  • FG40-1M - optimized for cost-sensitive applications.
  • FG40-1MA - nearly a drop-in replacement for OpenGrab EPM v3.
  • FG40-2M - optimized for mission-critical applications due to doubly-redundant CAN FD interface.
Variant Mass, g Dimensions, mm Cyphal/CAN iface Analog iface
FG40-1M 70 40✕40✕30 Single UCANPHY micro No
FG40-1MA 70 40✕40✕30 Single UCANPHY micro Yes
FG40-2M 70 40✕40✕30 Double UCANPHY micro No


  • Payload attachment in aerial vehicles.
  • Workholding in CNC machines, manipulators, and robots.
  • Magnetic locks, clamps, and holders.

For low-volume orders, please proceed to the online store. For large orders and long-term supply options, please get in touch.


  • Strong magnet in a very compact and lightweight form-factor.
  • Zero power consumption in either on or off state.
  • Fast on↔off state transition in approx. 1 second.
  • Low (de-)magnetization energy consumption.
  • Entirely solid-state construction, no moving parts inside.
  • IP68 rated — dust-tight, submersible.
  • AEC-Q grade 2 electronics.
  • Resistant to vibration, mechanical stress, high and low temperatures, electromagnetic interference, humidity, dust, and some aggressive chemicals.
  • Wide power supply voltage range ensures trivial integration into the end system.
  • Compatible with industry-standard interfaces:
    • Cyphal/CAN FD control with diagnostic telemetry;
    • RCPWM control input;
    • voltage level control input.


FG40 EPM is manufactured in the European Union.
Contact us for information about quality and standard compliance.