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2. Rotary actuator - Wikipedia

   en.wikipedia.org/wiki/Rotary_actuator

   Hydraulic or pneumatic rotary actuator, using a rack and pinion Both hydraulic and pneumatic power may be used to drive an actuator, usually the larger and more powerful types. As their internal construction is generally similar (in principle, if not in size) they are often considered together as fluid power actuators. [ 2 ]

3. Hydraulic motor - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_motor

   Hydraulic gear motor A small hydraulic motor Symbol: hydraulic motor. A hydraulic motor is a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement . The hydraulic motor is the rotary counterpart of the hydraulic cylinder as a linear actuator.

4. Hydraulic machinery - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_machinery

   Hydraulic power was used to operate cranes and other machinery in British ports and elsewhere in Europe. The largest hydraulic system was in London. Hydraulic power was used extensively in Bessemer steel production. Hydraulic power was also used for elevators, to operate canal locks and rotating sections of bridges.

5. Tow truck - Wikipedia

   en.wikipedia.org/wiki/Tow_truck

   Some booms are fixed; some use heavy pivoting A-frames; others are equipped with hydraulic-powered telescopic cylinders. The heaviest types of boom can rotate, effectively turning the tow truck into a sort of mobile crane, called a "rotator", and are usually reserved for incidents involving heavy vehicles. [3]

6. Archimedes' screw - Wikipedia

   en.wikipedia.org/wiki/Archimedes'_screw

   It is a reversible hydraulic machine that can be operated both as a pump or a power generator. As a machine used for lifting water from a low-lying body of water into irrigation ditches, water is lifted by turning a screw-shaped surface inside a pipe. In the modern world, Archimedes screw pumps are widely used in wastewater treatment plants and ...

7. Tiltrotator - Wikipedia

   en.wikipedia.org/wiki/Tiltrotator

   A tiltrotator can best be described as a wrist between the arm of the excavator and bucket, or whatever other tool is fitted to the tiltrotator's quick coupler. With its integral quick coupler and rotary swivel, the tiltrotator can also use extra hydraulic functions to power and manipulate other worktools below it such as a breaker, grapple or an auger, which can be attached to the ...