Differential Rewind Shafts

Universal Converting Equipment Ltd has developed a Full Differential Shaft system to overcome the problems of existing systems. The rewind shaft is filled with a complete set of differential chucks so there is no need to position individual chucks each time the slit pattern changes on the winder.

The Universal chucks grip the inside of the core locking the chuck and core together. Control of rewind torque is obtained by controlling the friction between the inside of the chuck and the shaft it is running on. Not only does this provide precise control of tension regardless of slit width, it also ensures core dust is not generated as there is no slip between the core and the chucks on the slitter. The design of the chucks enables easy loading of the cores and offloading of the reels, whilst locking the core into position to prevent sideways movement during winding

This system is fitted on most new machines supplied by Universal Converting Equipment and can also be retrofitted onto a wide range of slitting machines.

The key benefits are:

• Spacer-less set up
• No slip between the core and the chuck preventing core dust generationPrecise control for tension sensitive materials
• Chucks are available to suit a range of core sizes including 76mm and 152mmID cores with rapid changeover.
• Narrow width chucks are available for slitting rolls down to 12mm wide.