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Hydraulic press

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The term press , which derives from the Catalan word premsa, has several uses. This time we are interested in its meaning as the machine used to compact or compress something .

Hydraulic , meanwhile, it is an adjective that is used to qualify what moves or moves through a fluid . Usually the notion is linked to Water .

From these ideas, we can move forward with the definition of hydraulic press . This is called a mechanism that has communicating vessels and pistons of water: with a slight force that is applied on the piston that has a smaller area, a greater force is achieved on the piston with a larger area.

The operation of the hydraulic press is based on the call Pascal's law , postulated by the French Blaise pascal at XVII century . According to Pascal , the Pressure that is exerted on a fluid that is contained in an indeformable container is transmitted with identical intensity at all points of the fluid and in all directions. This means that, from small forces, much larger forces can be achieved.

The hydraulic press, in this frame, has two cylinders full of Water or oil that are communicated with each other; in each one, pistons of different area that are in contact with the fluid are adjusted. By exerting a force on the piston of smaller area or section, a pressure in the water is generated that is transmitted in full to the rest of the fluid and reaches the other piston.

A hydraulic press, in short, allows multiply forces , obtaining large forces from small forces. This kind of machines is usually used to lift heavy bodies .

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