The frame series hydraulic press adopts a plug-in valve integrated system and has independent electrical and hydraulic power mechanisms. It has adjustment, dual hand single cycle, and continuous working operation mode (with feeding device). By selecting the cotton board, it can achieve two forming processes of fixed distance and pressure. This series of hydraulic presses has good rigidity, high precision, and strong resistance to eccentric loads. This type of hydraulic press is suitable for various stamping processes such as press fitting, calibration, stretching, bending, forming, feeding, and flanging, as well as powder metallurgy, automotive parts, household appliances, kitchen utensils, and other pressing forming processes.