compressed-air actuator

noun
UK /kəmˌprest ˈeə ˈæktʃueɪtə/
US /kəmˌprest ˈer ˈæktʃueɪtər/

A machine part that uses squeezed air to push or move things.

The compressed-air actuator opened the factory gate with a loud hiss.


OTHER MEANINGS

2. A device in robots that uses stored air to make a joint or arm move.

The robot's compressed-air actuator lifted the box gently.

3. A part in vehicle systems that uses air pressure to apply brakes or open doors.

The bus door uses a compressed-air actuator to swing open.

4. A mechanism in packaging machines that uses air to clamp or push products.

A compressed-air actuator pressed the label onto each bottle.