This series of hydraulic press has relay control and PLC control two electrical control systems. There are three operation modes of adjustment, manual and semi-automatic, which can realize two process modes of regulation and fixed range. During the constant pressure forming, the pressure holding delay and automatic return to the city action after pressing. The middle part of the worktable is equipped with an ejection device, which can be used as a hydraulic pressure in the plastic forming process of reverse drawing parts in addition to ejection products. Its working pressure and stroke can be adjusted within the specified range according to the needs of the process.