Hydraulic press

A machine that uses pressure transmitted through an enclosed fluid to multiply force, allowing a small input force to move or compress a larger load.

Pascal's law: Pressure applied to an enclosed fluid is transmitted undiminished throughout the fluid and to the container walls. This principle lets pressure from the small piston act on the larger piston.
Pressure: Force distributed over a unit area, measured in pascals in the International System of Units. The press transmits pressure through fluid rather than transmitting force unchanged.
Hydraulic press brake: A machine that bends sheet or plate metal by pressing it against a die. It uses hydraulic force to bend metal along a controlled line.
Mechanical press: A press that generates force through mechanical components such as a crank, flywheel, or toggle linkage. Its force profile and motion come from mechanisms rather than fluid pressure.
Hydraulic cylinder: A mechanical actuator that converts fluid pressure into linear force and motion. The cylinder houses the piston that applies force to the press's load.
Force: An interaction that can change an object's motion, measured in newtons. The press's input and output are forces acting on different piston areas.
Hydraulic forging press: A press that shapes metal by applying sustained compressive force during forging. It applies high, controllable force to deform hot or cold metal.
Pneumatic press: A press powered by compressed gas acting on a piston or diaphragm. Compressible gas gives it different stiffness and force behavior from a hydraulic system.
Piston: A movable component that slides within a cylinder to transmit force or displace fluid. The press uses pistons of different areas to trade distance for force.
Area: A measure of the two-dimensional extent of a surface. A larger output-piston area converts the same pressure into greater force.

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