How does a hydraulic press work and where is it used?

A hydraulic press is often used to apply a compressive force. The design of a hydraulic press itself is simple: it consists of two vessels with pistons, most often of different diameters. The cylinder itself is filled with liquid. The type of liquid depends on the purpose of the press. As Pascal’s law says: pressure spreads with equal force in all directions. The forces that press on the pistons are proportional to the areas of the pistons. What does it mean? This means that the power gain is equal to the ratio of the areas of the pistons.

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