Hydraulic expansion chucks

Norm: No norm

Hydraulic expansion chucks
Modern machining processes place heavy demands on tool holding. Hydraulic
expansion chucks provide excellent clamping characteristics combined with precise
concentricity. Furthermore, they enable a simple and fast tool change.
Turning the pressure screw generates suffi cient pressure in the pressure chamber
resulting in an elastic deformation of the clamping bush, providing powerful tool
clamping and precise concentricity. A safe and powerful fi t is guaranteed.
If reduction sleeves are applied that are able to hold varying tool diameters, the
tool application may be extended without problem. If such sleeves are not applied,
it is essential to observe the minimum clamping length!

Advantages
- precise tool clamping with a maximum 3 µm deviation from concentricity
- transmission of high torque through (excellent clamping) optimised bush clamping system
- high speed compatibility (no centrifugal forces from clamping segments)
- precise concentricity, therefore excellent surface qualities and dimensional accuracy of the workpiece
- rapid tool change thanks to simple operation of the clamping screw
- optimal tool life
- hydraulic cushioning has vibration absorbing effect

DIN 69882-7:2005 - Tool holders with hollow taper shanks according to DIN 69893­1  - Part 7: Type F, expansion clamping chuck  - Dimensions
Ersatz für DIN 69882­7:2002­04