Schunk Pronto retrofit quick jaw change system
1 min read
The five second per jaw changeover time quoted for the Schunk retrofit Pronto quick jaw change system will speed set-up for all standard lathe chucks that have fine serrations of 1/16-inch by 90° and 1.5 mm by 60°.
The new Schunk Pronto quick-change set consists of supporting and changing jaws. Using a selection of interchangeable inserts, the clamping range can be extended up to 16 mm without having to re-set the supporting jaw.
The lock is released with an Allen key and the jaw is removed and replaced by another. This eliminates incorrect positioning. In its locked position, six-sided form-fit clamping provides process stability and high force and torque transmission.
Three supporting jaw variants are available for small, medium and large clamping ranges.
Top jaws see four hard claw inserts for various diameters and clamping ranges available, with soft interchangeable inserts for finished part processing also supplied. Once parts have been turned, the inserts can be used again and again with the system. The clamping depth can be varied using a workpiece stop.
Initially, Schunk will be offering the Pronto quick jaw change system for lathe chucks up to 250 mm. Further sizes are planned.
