Hydraulic mechanical equipment is very general. The main category is forging and pressing machine tools, including hydraulic presses, shearing machines, bending machines, punching machines, and many others. Hydraulic presses are further divided into hydraulic presses and hydraulic presses. With the gradual elimination of hydraulic presses, people usually directly refer to oil presses as hydraulic presses. Hydraulic press can be divided into single column hydraulic press, gantry hydraulic press, frame hydraulic press, four column hydraulic press, and punch press according to their structure.