Popular Terms
Electrical, hydraulic, or pneumatic device (such as a relay) that controls the flow of material or power. Also called actuation device.

Use 'actuator' in a Sentence

I liked to study machines and today I had a look at an interesting thing called an actuator, which I had never heard of.
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Having a good quality actuator running things will let you sleep a lot easier knowing it shouldn't cause any major problems.
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If you are working in a factory one of the most important pieces of equipment that you can have is your actuator.
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