In modern industrial manufacturing, the forging of steel, the forming of metal structural parts, and the pressing of plastic and rubber products all need a hydraulic mechanical equipment. The hydraulic machine is a kind of equipment that can be used to complete various forging and pressure forming processes, and use hydraulic transmission technology for pressure processing, At present, the hydraulic press has become an important equipment necessary for the machinery production industry.        

The working principle of the hydraulic press is that, according to the pressing process requirements, the master cylinder can complete the basic working cycle of fast descending, deceleration pressing, pressure holding delay, pressure relief return and stop, and the pressure, speed and pressure holding time can be adjusted. Ejection Hydraulic cylinder It is mainly used to eject the workpiece. It is required to realize the action of ejecting, returning and stopping. When the thin plate is stretched, the jacking hydraulic cylinder is required to rise, stop, pressure return and other auxiliary actions. Sometimes it is also necessary to use the blank holder cylinder to press the blank tightly to prevent peripheral wrinkling. The speed of the main cylinder of the hydraulic press is determined according to the requirements of the pressure processing process in the main movement. Generally, the speed of the main cylinder is determined when the oil is supplied directly by the pump Hydraulic system The fast backward speed of the hydraulic press is equal to the fast forward speed. The possible output pressure (tonnage) of the actuator (master cylinder) is the main specification of the hydraulic press and has been serialized