... BTM- 1300 PLC controlled High-speed Automatic Slitting Machine Uses: The machine applies to cellophane, PET, OPP, CPP, PE, PS, PVC and computer ... achieve a constant tension. 2, Slitting Unit: This machine equipped with two kinds of slitting method: Flat knife slit and ... tension in accordance with the speed and diameter increases. 4, winding sticks pressure unit : The machine is equipped with two sets ...