Between electric and pneumatic actuators, which one is better for reuse? What are the advantages of each? ?

　　The advantages of electric actuators are easy access to energy, fast signal transmission speed, long transmission distance, convenience for centralized control, relatively high sensitivity and accuracy, easy integration with electric control instruments, and simple installation and wiring. The drawbacks are their complex structure, low thrust, and a higher average failure rate compared to pneumatic actuators. They are suitable for applications where explosion-proof requirements are not stringent and where there is a lack of compressed air supply. 　　The main disadvantages of electric actuators are: they have a more complex structure, are prone to failures, and due to this complexity, they require higher technical skills from the maintenance personnel on site ； The motor generates heat during operation; frequent adjustments can easily lead to overheating of the motor, triggering thermal protection mechanisms. This also increases the wear on the reduction gears ； Additionally, its operating speed is relatively slow. It takes a considerable amount of time for the control valve to move to the corresponding position after a signal is output from the regulator. This is where it falls short compared to pneumatic and hydraulic actuators. 　　The advantages of pneumatic actuators are: 1. They accept continuous air signals and produce linear displacement (with an electrical/pneumatic conversion device, they can also accept continuous electrical signals). Some models, when equipped with a rocker arm, can produce angular displacement. 　2. It has positive and negative action functions. 　　3. It has a high moving speed, but the speed slows down when the load increases. 　　4. The output force is related to the operating pressure. 　　5. High reliability, but the valve cannot maintain its position in the event of a gas supply interruption (it can maintain its position if a check valve is used). 　　6. Segmented control and program control are difficult to implement. 　　7. It is simple to maintain and repair, and it has good adaptability to the environment. 　　8. High output power. 　　9. It has explosion-proof functionality. The disadvantages of pneumatic actuators are: 1. For double-acting pneumatic actuators, they cannot return to their preset position after the air supply is cut off. It is a single-acting pneumatic actuator that can return to its preset position relying on the spring when the air supply is cut off. It requires instrument air as power; the air supply does not need to be insulated, as instrument air is free of water.

Pneumatic systems are mainly concerned with the air supply issue; their safety is beyond doubt, but these days air supplies are rarely installed on-site anymore

If a pneumatic actuator is to be used, does the factory have an air compressor station? If not, I still recommend using electric actuators. There is no need for insulation for the air supply, and pneumatic actuators have a simpler structure than electric ones, making them easier to maintain. Pneumatic actuators are very popular these days