Four column hydraulic press, also known as hydraulic press, is made of Pascal's law, which uses liquid pressure to drive. There are many kinds of hydraulic press. Of course, the uses are varied according to the needs. For example, according to the type of liquid to transfer pressure, there are oil press and hydraulic press. The total pressure produced by hydraulic press is large, which is often used in forging and stamping. Forging hydraulic press is divided into die forging hydraulic press and free forging hydraulic press.

Die forging hydraulic press need die, but free forging hydraulic press need not die. The first 10000 ton hydraulic press made in China is a free forging hydraulic press. The four column hydraulic press is composed of the main machine and the control mechanism. The main part of hydraulic press includes hydraulic cylinder, beam, column and filling device. The power mechanism is composed of oil tank, high pressure pump, control system, motor, pressure valve, directional valve, etc.

The hydraulic press is suitable for the pressing process of plastic materials. Such as powder products molding, plastic products molding, cold (hot) extrusion metal molding, sheet stretching and cross pressing, bending, turning, correction and other processes. The four column hydraulic press has independent power mechanism and electrical system. It adopts button centralized control and can realize three operation modes of adjustment, manual and semi-automatic.