Pneumatic actuators are devices that use air pressure to generate linear or rotary motion. They are often used in applications where electric motors would be impractical, such as in environments where there is a risk of explosion.

Pneumatic actuators typically consist of a piston or vane that is connected to a rod or shaft. When air pressure is applied to the piston or vane, it creates a force that drives the rod or shaft. Depending on the application, pneumatic actuators can be configured for either push or pull operation.