... 3)High quality and low price 4)best one small power ac drive 0.4~7.5KWTension Control Frequency InverterIn ... motor, DC motor, magnetic powder clutch, etc. Technical Feature:1. Power range: 0.4 ~ 600kW2. Dynamic torque current control, rapid ... with high start torque feature, 0.5Hz/150%7. Dual power frequency switching automatically8. Customized defined tension conical degree ApplicationSlitting machine ...