... upper , middle and lower-layer, rack is devided into four tiers from the ground to the top, and the bottom ... stability, with memory functionPulling speed 6-60m/min(6) Traction machine using horizontal swing rotation, rotation steady, rotation speed stepless adjustable. To ... diameter 850mm(1) Under traction use torque motor to automatic follow the plastic film on-line tensionTorque Motor Model YLJ100 ...