In the actuator product, it is divided into electric actuator and pneumatic actuator. In the pneumatic actuator, it is divided into film type, piston type, scotch yoke pneumatic actuator. Among them, the pneumatic fork actuator is the most widely used. Each actuator is widely used because of its own characteristics.
Advantages of pneumatic actuators:

Comparing with electric actuators, pneumatic actuators have less requirements and working environment. The control action is fast and the response is fast, and the required pressure and speed can be achieved in a relatively short time. Work environment adaptability is good, especially in flammable, explosive, dusty, strong magnetic, radiation and vibration and other harsh working environment, than hydraulic, electronic, electrical control is superior. It has positive and negative switching, high power and explosion-proof function.

Electric actuator can be divided into angular stroke and straight stroke according to the movement mode; it is often used to match various valves and valves to form electric control valves, electric ball valves, electric butterfly valves and other industrial automatic electric valves. AC or DC direct current is used as driving energy.
Advantages of electric actuators:
Compact structure and compact volume. Compared with pneumatic actuator, electric actuator has relatively simple structure, easy access to energy, no risk of "leakage" and high reliability. There is no need to install and maintain various pneumatic pipelines. Signal transmission speed is fast, transmission distance is long, convenient for centralized control, high control accuracy and sensitivity, easy to cooperate with electric regulator, and simple installation and wiring. It is suitable for places where explosion-proof requirements are not high and gas sources are scarce.
Different executing agencies have their own characteristics. When using the executing agencies, familiarizing with their own characteristics will be helpful to the use of various executing agencies. Beijing Ruito Jiangnan Automation Equipment Co., Ltd. specializes in the production of high temperature butterfly valves, scotch yoke pneumatic actuator, etc. If you need, please call for advice.