... proportional servos are synchronized and capable of the control of random point within the stroke , with ... provided with lower die compensation device.3,The computer system of Holland Delem make (or Switzerland Cybelec ... Y2) and backgauges (X, Y, Z,) are computer-controlled. The backgauges adopt ball screw and rolling guideway, ... . WE67K Series Electro-hydraulic Servo Numeric-control Bending Machine