Advantages and disadvantages of pneumatic components

First, the advantages of pneumatic components:

1, pneumatic device structure is simple, lightweight, simple installation and maintenance. The medium is air, which is less flammable than the hydraulic medium. Therefore, it is safe to use.
2, the working medium is inexhaustible air, the air itself does not spend money. The exhaust gas treatment is simple, does not pollute the environment, and has a low cost.
3, the output power and working speed adjustment is very easy. The operating speed of the cylinder is generally less than 1M/S, which is faster than the hydraulic and electrical methods.
4, high reliability and long service life. The number of effective operation of electrical components is about one million times, while the life of general electromagnetic valves is more than 30 million times, and some good quality valves exceed 200 million times.
5. Using the compressibility of air, it can store energy and realize centralized gas supply. Energy can be released for a short period of time to achieve high-speed response in intermittent motion. Buffering can be achieved. It has strong adaptability to impact load and overload. Under certain conditions, the pneumatic device can be self-retaining.
6, full pneumatic control with fire, explosion-proof, moisture-proof ability. Compared with the hydraulic method, pneumatic can be used in high temperature applications.
7, due to the small air flow loss, compressed air can be concentrated supply, long-distance transmission.

Second, the shortcomings of pneumatic components

1. Due to the compressibility of air, the operating speed of the cylinder is susceptible to changes in the load. Using gas-liquid linkage can overcome this defect.
2. When the cylinder is in low-speed movement, the friction ratio accounts for a large proportion of the thrust force. The low-speed stability of the cylinder is not as good as that of the hydraulic cylinder.
3, although in many applications, the output force of the cylinder can meet the work requirements, but its output force is smaller than the hydraulic cylinder.
Pneumatic technology is a professional technology that uses compressed air as a medium to drive and control machinery. Because of its advantages of energy saving, no pollution, high efficiency, low cost, safety and reliability, and simple structure, it is widely used in various machinery and production lines. In the past, the pneumatic system and its components in production lines such as automobiles and tractors were designed, manufactured and maintained by each factory.