(1) Compact structure and small size. Compared with pneumatic actuators, the structure of electric actuators is relatively simple. 

A basic electronic system includes an actuator, a three-position DPDT switch, a fuse and some wires, which is easy to assemble.

(2) The driving source of electric actuators is very flexible. Generally, vehicle-mounted power supply can meet the needs, 

while pneumatic actuators require air source and compression drive device.

(3) Electric actuators have no risk of "air leakage" and are highly reliable, while the compressibility of air makes pneumatic actuators slightly less stable.

(4) There is no need to install and maintain various pneumatic pipelines.

(5) The load can be maintained without power, while pneumatic actuators require continuous pressure supply.

(6) Since no additional pressure device is required, electric actuators are quieter.

(7) In pneumatic devices, it is usually necessary to convert electrical signals into pneumatic signals and then into electrical signals. The transmission speed is slow and it is not suitable for complex circuits with too many component levels.

(8) Electric actuators are superior in control accuracy.