Hardinge’s HCAC collet adaptation chuck adapts most spindles to accept C-series pull-back collets, J-series pull-back collets, stationary B-series collets, style-S master collets, step chucks, and closers and dead-length collets. The collet chuck can be substituted for a jaw chuck for part diameters ranging to 6", depending on the spindle size.
No hoist is required to mount the collet chuck on the spindle because of its light weight. According to the company, the chuck enables faster job setup times, faster acceleration and deceleration, and higher spindle speeds for reduced cycle times. The chuck can be used with master collets and pads, and is said to provide improved part concentricity and greater precision capability.