Voice coil motor with integrated encoder


This dynamic precision drive system combines actuator and sensor. With this voice-coil-drive a very high productivity in assembly lines can by achieved with a small damand of space.


Motor of welding heads in assembly lines - mainly in verhicle body construction of automobile manufacturers and their suppliers.


  • high dynamic: (12mm stroke under a load of 100N in <5ms)
  • Encoder integrated with a resolution of < 20µm to control the welding process
  • sealed system with a high level of protection
  • constant force-current ration over the full stroke
  • large temperature range up to 130°C


> 5,000 units per year