Hydraulic Machinery Hydraulic machinery are machines and tools that use fluid power to do the work. Almost all types of heavy equipment is a common example. With this type of equipment, hydraulic fluid is pumped to a high pressure then transmitted through the machine to various actuators. The hydraulic pumps are powered by engines or electric motors. The pressurized fluid is controlled by the operator with control valves and then distributed through hoses and tubes. The increasing popularity of hydraulic machinery is due to the large amount of power that is transferred through small tubes and flexible hoses. The high power density and wide array of actuators can make use of this power. Hydraulic power The theory that lies behind hydraulic equipment is fluid pressure. 1. A force that acts on a small area can create a bigger force by acting on a larger area by hydrostatic pressure.
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