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Pneumatic expanding shafts with axial movement are the perfect solution for the unwinding and rewinding of rolls in cantilever applications.
They are used to always maintain a precise centering of the roll as, thanks to an axial movement mechanism, it is possible to align the roll even during the operations without stopping the productive process.
Using a knob on the front of the shaft, it is possible to regulate the rollwith a lateral movement of ±20mm. To ensure stability and lightweight the shaft is made up of a steel journal, an aluminum central body and rubber or aluminum strips according to the customer’s needs. Nickel plating or anodizing treatments are available depending on the applications.
Machine fixing is custom on customer’s requirement.
Strips expansion can be obtained with air chambers via back axial air feeding by rotary union or front air feeding by valve.
Pneumatic expanding shafts with axial movemtn are the ideal solution for food and medical industries and on packaging, label printing and non woven machines.
A version with axial movement only with the machine stopped is also available.
