Hardinge began production of collets in the 1890s for use on bench lathes making parts for the watchmaking and lens industries. It is believed that the “C” designation for their first 5C collets came from the name of the Cataract waterfalls that could be viewed from the factory grounds of the Hardinge Brothers Company in Chicago, Illinois where they manufactured precision Cataract bench lathes.
Incredibly the Hardinge C-series design has not changed since the early use in the 1890s, even in light of the rapidly changing technology in machine tool design. A collet has the capability to accurately grip a workpiece or a tool, resisting both rotational forces and multi-directional cutting loads with the ability to rapidly release the workpiece or the tool. A collet has the capability to amplify the actuation force, converting it into workpiece gripping or tool gripping with the ability to operate at high repetition levels without loss of accuracy or material failure. It also has the ability to operate at a wide range of rotational speeds with minimal loss of gripping force.
For more information, visit www.hardinge.com.