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The biggest advantage to using cantilevered shafts is the ability to make speedy roll changes. One way to speed up roll changes is to supply air shafts with pneumatic pressure through rotary union connection. When you use rotary union air supply to your air shafts, inflating and deflating occurs by simply flipping a pneumatic toggle valve. This is much faster than inflating air shafts with an inflating gun.

To make roll changes extremely efficient, consider air shafts with built-in toggle valves (installed in the end of the shaft opposite the rotary union). Air shafts with built in toggle valves allow operators to load and unload rolls in the least amount of time because the toggle valve inflate / deflate operation is located at the center of the roll change itself.

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