Four-column hydraulic press refers to a hydraulic press with four-column columns. The four-column hydraulic press has an independent power mechanism and electrical system. The well is centrally controlled by buttons, which can realize single-action and semi-automatic cyclic actions. The working pressure and pressing speed of the machine can be adjusted according to the stroke range. It needs to be adjusted, and can complete two process methods of constant pressure and fixed stroke forming, and has pressure holding delay and automatic return after pressing.
The four-column hydraulic press has a wide range of uses, suitable for metal stamping, bending, flanging or shallow drawing forming and cold extrusion process, and also suitable for pressing and forming process of metal powder products and non-metallic materials, such as plastics, glass fiber reinforced plastics, insulating materials It is suitable for pressing and forming of products such as abrasives, and is also suitable for processes such as calibration and pressing.
The hydraulic transmission system of the four-column hydraulic press consists of a power mechanism, a control mechanism, an executive mechanism, an auxiliary mechanism and a working medium. The power mechanism usually uses an oil pump as the power mechanism, usually an accumulating oil pump. In order to meet the requirements of the movement speed of the actuator, choose one oil pump or multiple oil pumps. Gear pump for low pressure (oil pressure less than 2.5MP); vane pump for medium pressure (oil pressure less than 6.3MP); plunger pump for high pressure (oil pressure less than 32.0MP). Pressure processing and forming of various plastic materials, such as extrusion, bending, stretching of stainless steel plates and cold pressing of metal parts, and also used for pressing of powder products, grinding wheels, bakelite and resin thermosetting products.
