The working principle of hydraulic press is mainly based on Pascal's law, which means that in a closed liquid system, the pressure applied at any point will be uniformly transmitted to all points of the system, maintaining equality. This law indicates that liquids (such as oil or water) are incompressible, so the pressure applied in the liquid will quickly transfer to every part of the liquid.
Hydraulic presses typically consist of the following main components:
Power system: a liquid that provides pressure and flow.
Hydraulic pump: delivers low-pressure liquid through pipelines to the control valve.
Control valve: regulates the pressure and flow rate of the liquid.
Oil cylinder: The high-pressure area of a liquid that contains a piston, which converts pressure into mechanical energy and drives the piston to move.
Workbench: Supports and positions workpieces.
During operation, the hydraulic pump transports liquid (usually oil or water) to the control valve. After the control valve regulates the pressure and flow of the liquid, the high-pressure liquid is sent to the oil cylinder, pushing the piston to move, thereby processing or forming the workpiece. The advantage of hydraulic presses is that they can convert smaller pressure into larger pressure and transmit pressure over large distances and heights, making them suitable for various complex operating situations.