... Aluminum foil. The whole machines with high equipped components, fast speed, smooth rewinding and high automation. 2. Technology ... Unwinding paper core lock Mode: Pneumatic cylinder locking Mode.6, With ¢ 3" adapters,( ¢ 6" pneumatic adapters are option)7, Web ... frequency conversion control.10, Traction: pneumatic pressing for material traction. 11, With pneumatic press-roll for pressing 12, Low ...