What are the speed requirements of the four-column hydraulic press pressing process?
According to the pressing process, the four-column hydraulic press requires that the main cylinder can complete the basic working cycle of fast downlink, one deceleration, one guaranteed calender, one relief return and one rest (any position), and the pressure, speed and holding time should be adjusted. The ejection cylinder is mainly used to eject the workpiece, which requires the action of ejection, return and rest.