The tail has a double-arm co-axial gravity tensioning device, which can adjust the tailroller synchronously.
尾部采用齿轮条重力张紧装置; 同步调节尾部滚筒行程。
2
3 mobile or welding positioner, such as welding roller frame, frame head and tail flip machine, rotary platform and positioner, mobile precision displacement mechanism should drive with servo motor.