This model is a perfect and ideal machine for slitting quite narrow width materials, such as roller of paper, aluminum foil, insulation material, reflecting material etc..The main motor adopts variable frequency speed regulation, to use the constant tension magnetic powder control, auto photoelectric edge correction, two units of magnetic powder clutch motors is available on rewinding, link with main motor to control the central drum reeling and with contact the surface, biaxial staggered winding, never nips the mouth, and have the meter preset, auto stop functions.