power chucks

Products » Power chuck

Hydraulic power chucks

After many years of development – in cooperation with the Machine Tools Department of the University of Miskolc – we have developed a hydraulic lathe chuck family that meets all requirements.

Our range of chuck types includes the hydraulic standard – TN type and the revolutionary TAF type automatic jaw chuck.

Manufactured power chuck types

Please contact our sales team for product ordering, servicing and spare parts.


For more detailed information, please download our power chuck catalogue
TN-175 hydraulic power chuck user manua
TN-210  hydraulic power chuck user manua
TN-254  hydraulic power chuck user manua
TN-315  hydraulic power chuck user manua

TAF  power chuck user manual

Operational guide

Following the parameters and sequence below:
  • nominal diameter: 40 mm
  • thread pitch: 20 mm, right
  • ball size: 7,144 mm
  • thread length: 1040 mm
  • total length: 1280 mm
  • nut: 4-4 threads, flanged and cylindrical double nut
  • wiper: both ends
  • accuracy class: class 3
Based on the above, the designation is: 40.20R. 7,144. 1040/1280 (AFV–AZV)/4–T3

The ball screw endings are designed according to drawings provided by customers. The ISO 3408 EU standard shall be used as a guide for the specification of tolerances on shape and positioning corresponding to the accuracy class.

Ball screws require precise and rigid installation. Both the parallelism deviation between the spindle and the guide rail and the deviation of the nut mounting inclination must be kept within minimum tolerances.

Ball screws can be lubricated with basically the same lubricants as rolling bearings, but the lubricant consumption is higher. The lubricant can be oil or grease. Oil lubrication allows higher speed because the it heats up less, than grease lubrication.

For grease lubrication, re-lubrication every 6 months or so after the running-in cycle is sufficient.