Product Description


Silent move circumferential belt measuring unit for heights up to 70 metres (230 ft).

  • Measuring set for easy installing the belt on existing brackets in the elevator shaft.
  • Quiet and non-slip digital shaft copying for universal mounting on a lift cabin.
  • Use up to speeds of 4 m/s (800 ft/min).
  • Particularly quiet and smooth-running, thanks to special belts and low-noise suspension.
  • User-friendly, reliable alternative to switches and sensors.
  • Quick and easy mounting with our complete belt fixing and tensioning set.


Wachendorff is well known as an established producer of incremental and absolute WDG and WDGA encoders. Wachendorff has developed a series of shaft copying systems based on special belts. All necessary installation parts are included for quick and easy mounting in the shaft.

The systems can be delivered as a circumferential or guided belt system. One of the main benefits is the use of a special nubbed and tooth belt. In combination with the special wheels they work extremely smoothly and quietly in the shaft, including at high speed.

  • Speed up to 4 m/s and heights up to 120 m
  • Delivery includes all mechanical parts for mounting in the shaft
  • Improved lift motion profile and gentle stop
  • Longest operating life
  • Resistant to typical contamination in the shaft
  • Maintenance free, e.g. no talcum powder necessary for the belt
  • Only one reference drive necessary after installation in the shaft


For detailed specifications, refer to the WDGMEUN Data Sheet in Downloads or visit the manufacturer's website.


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