This model is a pertect and ideal machine for stting small scale materials,such as oller 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, twounits of magnetic powder clutch on rewinding, link with main motor to control the central drum reeling and with contact the surface, biaxial staggeredwinding, never nips the mouth, and have the meter preset, auto stop functions.