... voltage380VAC/50HZDimension (L*W*H)3120X1010X1530mmBending ShapesIt’ s driven by All-Digital Variable Frequency Motor with compact structure ... matching rotating speed of 3 rollers. 1st, 2nd, 3rd axis are driven by Variable Frequency Motor, 4th axis rotate passively and stably, ... profiles. 1st, 4th axis are driven by Servo Motor to go up and down, 2nd, 3rd axis are driven by hydraulic force to ...