Product Description


Guided cable shaft copying for height typically 17 stops, approx. 53 m (175 ft).

  • Complete Encoder Measuring System for Length Measurement.
  • No slip when speed below 1 m/s (200 fpm).
  • Height typically 17 stops, approx. 53 m (175 ft).
  • Resolution until 0.03 mm/pulse (0.00118 inch/pulse) at 2,500 pulses.
  • Quick assembly.
  • Applications: digital shaft copy for lifts, exact measurement of distance and speed.


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 WDGMS Data Sheet in Downloads or visit the manufacturer's website.


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