... -D PLC Controlled High Speed Slitting and Rewinding MachineUses: The machine applies to cellophane, PET, OPP, CPP, PE, PS, PVC ... computing to achieve a constant tension). 2, Slitting Unit: This machine equipped with Flat knife. (Circle knife is optional device). ... and diameter increases. 4, winding sticks pressure unit : The machine is equipped with two sets of pneumatic pressure automatic lifting ...