Differential Shafts And Friction Chuck

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We have developed a full differential shaft system to overcome the problems on slitting machines associated with gauge variation across a web. The slitter 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.

The Niika’s differential 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 differential chuck and friction strips in 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

Differential Rewind Shafts are fitted on most new slitting rewinders supplied by Universal Converting Equipment and can also be retrofitted onto a wide range of slitting machines.

NEGA-001 Bearing Type

Standard sizes available for NEGA-1 width 50 mm. also available in other sizes for customized made .