Three-beam four-post structure, computer optimized design, simple, economical and practical. The hydraulic control system uses the cartridge valve integrated system, with reliable operation, long life, small hydraulic impact, reducing the connecting pipes and leakage points. The independent power control system is reliable, with intuitive operation and easy maintenance. Centralized control buttons are used, with two operation modes: adjustment (contact), single time (semi-automatic). It can achieve constant stroke and constant pressure, the two molding processes, and has delaying and other properties. The working pressure and strokes are adjustable within a predetermined range according to the needs of the process.