High Speed Back-twisting Machine 1,For CAT5E,CAT6,CAT7 2,Motorized take-up with constant tension 3,Accurrate twist distance 1,Application:Applicable for ... .2,Specifications: Machine modelVertical box typeMax rotation speed1000rpmBack twist ratioMax 90% stepless adjustableMain motor3.7KW spin motor,1 inverter control,1 active ...