Difference between Pneumatic Hydraulic and Electrical Actuators

Pneumatic Actuators:

Pneumatic actuator is a devices that convert the energy of compressed air or gas into a mechanical motion that regulates one or more final control elements. It converts the energy of compressed air or gas into a mechanical motion that regulates one or more final control elements.

Hydraulic Actuators:

A hydraulic actuator consists of a cylinder or fluid motor that uses hydraulic power to facilitate mechanical operation. The mechanical motion gives an output in terms of linear, rotary or oscillatory motion.

Electrical Actuators:

An electric actuator is a device that can create movement of a load, or an action requiring a force such as clamping, using an electric motor to create the necessary force.

Pneumatic vs Hydraulic vs Electrical Actuators: