RÖHM DURO-A 254 power chuck, 90-degree pointed teeth, cylindrical shank ZA 220

The Duro-A is a three-jaw through-type chuck that can be operated automatically, i.e. hydraulically, by a CNC machine. It is primarily used for turning operations on cylindrical and disc-shaped workpieces. Stable clamping through axial tightening; the workpiece is pulled down against the rigid stop automatically by the actuation of the clamping mandrel. Vibration damping due to the high proportion of vulcanised material in the clamping sleeves; prepared for pneumatic system control; compatible with Type 269-90 intermediate flanges. Technical features: high flatness and concentricity accuracy; high repeatability; Clamping force remains constant over 500,000 cycles; wedge hook principle; fixed base jaw, top jaws via slotted nuts; threaded ring pre-fitted. Applications: automatically clamping machining centres. Machining of bars, tubes, flanges and discs by turning. Advantages: High clamping forces (up to 250 kN in the 400 series version); high rotational speeds (up to 8,000 rpm in the 165 series version); reduced interference contour; large through-bore. Further information: The Duro-A, diameter 254, is a three-jaw chuck with a through-bore diameter of 79, a cylindrical shank ZA 220 and 90-degree pointed teeth, which can be operated automatically, i.e. hydraulically by a CNC machine. It is primarily used for turning cylindrical and disc-shaped workpieces.