Listing ID #3922031
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For fast change over of un-winder/winder rolls air expanding shafts are required for core holding. Through its air valve air can fill and the air shaft will hold the core firmly by expanding the rubber bladder. Core gets released after removing the Air by thump press. Most commonly used cores are 3†ID core but bigger cores are also used where heavy weight of the unwind/re-wind rolls. Air expanding shaft is core-holding device suitable for 3†core inside diameter & 70mm core diameter. Lugs type Air expanding shaft is most commonly used for paper or PVC core holding. Square end Airshaft can be used with safety chucks for winding & winding.
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The shaft can take load of 10kgs to 500kgs. Cantilever type Airshaft is available with one side shaft for mounting. Air valve can locate at face length or shaft end according to requirements. In case of failure of air shaft rubber bladder your service mechanic can easily replace the tube at your place itself. Importance is given to valve fitting and Teflon tape sealing of valve thread and to avoid damage of “O†rings. To avoid overfilling of air to avoid puncture of air bladder Air pressure Regulator filter Lubricator with pressure gauge so that know the in built air pressure inside the Air shaft. If require special hardened ends, bearing size it should be mentioned in your order. If less working width is used, the remaining Area of the shaft be inserted with empty core to avoid extra expansion of rubber bladder in the unused area of Air shaft to avoid blasting of rubber bladder.
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