... -D PLC Controlled High Speed Slitting and Rewinding MachineUses: The machine applies to cellophane, PET, OPP, CPP, PE, PS, ... to achieve a constant tension). 2, Slitting Unit: This machine equipped with Flat knife. (Circle knife is optional device). ... pneumatic fall slip-shaft that ‘s pressure in center by pneumatic) ; With automatic tension compensation system, so that rewinding tension is steady , ...