Hydraulic press working principle hydraulic transmission is the use of liquid pressure to transmit power and control of a transmission mode. The hydraulic device is composed of hydraulic pump, hydraulic cylinder (hydraulic motor, etc.), hydraulic control valve and hydraulic auxiliary component.
  Now mainly divided into four column hydraulic press, single column (C) hydraulic press, horizontal hydraulic press, vertical frame hydraulic press and so on. According to the press use classification is mainly divided into metal forming hydraulic machine, hydraulic machine, hydraulic bending tensile machine, punching machine, hydraulic powder (metal, non-metallic) molding hydraulic machine, hydraulic machine, hydraulic extrusion pressing machine.
  Hydraulic pump: a device that converts mechanical energy into hydraulic energy. Hydraulic cylinders (hydraulic motors and other actuators): hydraulic energy is converted to mechanical energy.
  Auxiliary components: 1, fuel tank: used to store oil, heat dissipation. Separation of air and impurities in oil 2, magnetic powder dynamometer, oil pipe and oil pipe connector 3, oil filter 4, pressure gauge 5, sealing element.
  Control valve: control hydraulic oil flow, flow direction, pressure, hydraulic actuator order of work, and protect the hydraulic circuit role. Talk about the popular point is to control and regulate the flow of hydraulic media, pressure and flow. Thereby controlling the direction of movement of the actuator, the force or torque output, and the speed of movement. The sequence of actions, as well as limits and regulates the operating pressure of the hydraulic system, prevents overload, such as one-way valves, reversing valves, relief valves, relief valves, sequence valves, throttle valves, speed control valves, etc..