Pneumatic valve actuators adjust valve position by converting air pressure into linear or rotary motion. There are two main forms: the piston actuators and diaphragm actuators. Piston actuators are ...

[Richard Sewell] decided to investigate. The result is a pneumatic actuator built out of lasercut acetal parts. The mechanism consists of of two outer layers of plastic acting as the enclosure ...

Hydraulic rotary actuators use a pressurized, incompressible fluid to rotate mechanical components. They are faster and more powerful than pneumatic actuators because the high pressures used in ...