Positioners: (1)Through rotation and turning of platform, positioners make work piece in best welding position. (2)Rotation movement are electric. (not through worm gear and crank handle). (3)One hand control box to facilitate operation. (4)Frequency conversion speed control(VFD), it is precise and stable. (5)Electric Control box. (6)Slewing ring are used to increase carrying capacity. (7)Brand of motor, reducer and electrical part: Motor: Hengxing Reducer: CEMA / Intervek Electrical part: Schneider Inveter: Taida from Taiwan

