Actuator Contact US Electrical ActuatorAn electric actuator is a mechanical device used to convert electricity into kinetic energy in either a single linear or rotary motion. Heavy Duty Pneumatic ActuatorHeavy duty pneumatic actuator is specifically designed for large load carrying capacities. Pneumatic ActuatorPneumatic actuators are mechanical devices that use compressed air acting on a piston inside a cylinder to move a load along a linear path.