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Compared with developed countries such as the United States and Europe, there is a certain gap in product service life, processing level, product reliability and control level. The specific performance is as follows:

(1) materials and processing equipment:

The service life of wear - resistant parts and wear - resistant parts used in shot blasting chamber and shot blasting chamber is far from that of China.

(2) design level:

At present, the independent development ability of designers in China is still not enough, and most enterprises are still in the stage of imitation, while the test conditions and design conditions are not suitable and ideal.

(3) control level:

There is still a certain gap between China's intelligent control, automation level and automatic monitoring technology and foreign advanced level.

With the continuous development of technology and practical requirements for the workpiece surface quality requirements continue to improve, the workpiece surface cleaning has become an indispensable means of processing in the production activities, so it requires cleaning equipment and technology to further improve and develop.

Since its appearance, shot blasting technology has been widely used because of its high productivity, good cleaning effect and low energy consumption. Shot blasting machinery has developed from a relatively single type of machinery into a field, from a single production process to the development of an indispensable part of the whole production process. After decades of development, shot blasting machine from the traditional single type to the present multi-type development, from horizontal movement to multiple directions. Shot blasting machine is slowly extending to each industry, to each industry production and technology has brought great convenience. Over the years, the technology and equipment of shot blasting have been gradually perfected, and the performance has been improved constantly. The application scope has also expanded from surface cleaning in casting industry to different industries such as road cleaning, mechanical processing, weapon manufacturing, metallurgical mines, vehicles and ships.