... paper, film , Aluminum-Foil etc. 2)controlled by PLC system 3)speed:400m/min 4) CE, SLITTING MACHINE/SLITTING AND ... as printed mark. Unwinding tension through an independent vector variable frequency electrical parameters of the original pre-computing to achieve a ... s pressure in center by pneumatic ; With automatic tension compensation system, so that rewinding tension is steady ,don’t adjust tension ...