The composition of the hydraulic machine mainly includes hydraulic pump, hydraulic cylinder, hydraulic valve, frame, workbench and pressure head. The hydraulic pump is the core part of the hydraulic system, which is mainly responsible for converting mechanical energy into liquid pressure.

There are many types of hydraulic pumps, including gear pumps, plunger pumps, vane pumps, etc. A hydraulic cylinder is a hydraulic component that converts liquid pressure into mechanical energy. It usually consists of a piston and a cylinder. When the liquid enters the hydraulic cylinder, the pressure of the liquid pushes the piston to realize the movement of the mechanical equipment. Hydraulic valve is an important hydraulic component to control the flow direction and pressure of liquid. It is mainly composed of valve core, valve body, spring, sealing ring and so on.

There are many types of hydraulic valves, including reversing valves, throttle valves, safety valves, etc. The frame is the supporting structure of the hydraulic press, which is usually made of steel material. The stability and strength of the frame are very important to the normal operation of the hydraulic press. The workbench is the processing platform of the hydraulic press. It is usually made of steel material and has high strength and wear resistance. The workbench can be adjusted according to specific needs to adapt to different processing tasks. The indenter is a processing tool of a hydraulic press. It is usually made of steel and has high hardness and wear resistance. The pressure head can be replaced according to specific needs to adapt to different processing tasks.

The working principle of the hydraulic press is the use of Pascal's law made of the use of liquid pressure transmission machinery. Pascal's principle refers to the law that the static pressure or dynamic pressure of incompressible fluid increases with the increase of depth.

In a closed container, the fluid flowing vertically upward creates a downward pressure on the side wall, which is called static pressure. If an upward pressure is applied to this pressure, then the two pressures add up to form an upward lift. This lift is formed by the gravity of the fluid and the pressure difference experienced by the fluid. In order to generate this pressure difference, the host of the hydraulic press usually uses a plunger pump, which reciprocates in the cylinder to provide pressure oil to drive the actuator to do work.

In short, the hydraulic press is a kind of mechanical equipment that uses liquid pressure to transmit power. Its working principle is based on the incompressibility of liquid and the conversion principle of mechanical energy.

The composition of the hydraulic machine mainly includes hydraulic pump, hydraulic cylinder, hydraulic valve, frame, workbench and pressure head. The working principle of the hydraulic press is to convert mechanical energy into liquid pressure through a hydraulic pump, and then push the liquid to flow to different hydraulic components, and finally transfer the pressure to the mechanical system, so as to realize the work of the mechanical equipment.