Pneumatic Expanding Chucks

Pneumatic chucks used as pitching adapters increase the flexibility of your production. With only one shaft or winding bar it will be possible to convert a huge variety of different core diameters.

WISTEC pneumatic chuck for core diameters of 150 mm (6") ( figure 1)

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WISTEC pneumatic chuck for internal core diameters of 350 mm (figure 2)

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Optionally it will be possible with a 76 mm shaft to expand other core diameters.

WISTEC pneumatic chuck for 120 mm cores, with fitting on a 76 mm shaft (figure 3)

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Other designs, fitted on one supporting axle, replace one complete pneumatic shaft. New: Supporting axle as far as Ø 40 mm !

WISTEC pneumatic chuck for 76 mm internal core diameter,with mounting upon an 35 mm shaft (figure 4)

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Pneumatic spacer bushings with lugs are by far more superior as an adapter solution, compared with the simple expansion tires.

Pneumatic chucks as expanding space bush combination. Filling and air escape over a valve (figure 5))

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Offer the following advantages:

Clamping of 150 mm and 152 mm cores without any interchange.

• It is possible to transmit high torques.
• The forces do not effect the expansion segment, but effect the clamping lugs.
• This will result in a high and long lasting performance.
  

WISTEC pneumatic chuck for 150 mm cores, in a design for flange mounting (figure 6)