PE film blowing machine with rotary die, film blower, plastic film machine SJ-55B PE film blowing machine with rotary die, film blower, plastic film ... : 10-110rpm diameter of die: 60-80mm Film thickness: 4-80micron Film folded width: 400-800mm Main motor power: 15kw ... durven by torque motor, with even and smooth rewinding and easy roll changing PE film blowing machine with rotary die, film blower ...