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Motors, switches, pumps, and other industrial devices rely on actuators to convert energy into motion. Actuators receive their energy from electricity, liquid, air, and various other power sources.

The most common type of actuator is known as a pneumatic cylinder and draws its power from air. Hydraulic cylinders, found in cars, use electricity as a power source. Other devices, such as solenoid valves, have two different power sources. Track down an actuator that produces linear, rotary or oscillatory motions.