At present, parts are constantly rising, and the construction machinery industry will continue to operate at a high level. Despite this, the further development of the construction machinery industry in China is constrained by parts. At present, most of the key parts, including hydraulic parts and transmission systems, need to be imported from abroad. This has led to high production costs and lack of international competitiveness for domestic enterprises. For a long time, domestic parts companies have struggled to meet the requirements of host companies, which makes imports the only option, especially in excavator products. The import of parts is expensive, so that 70 % of the profits of the construction machinery industry are eaten. Faced with the excessive dependence of parts and components, it has still become a barrier to the Advancement of the engineering machinery industry.

It is estimated that at the end of the 12th Five-Year Plan, the sales volume of construction machinery in China will reach 900 billion yuan, and the export value will exceed 26 billion U.S. dollars.

The key parts of engineering machinery are the basic, supporting and restricting bottleneck of the development of engineering machinery products. When the development of construction machinery reaches a certain stage, the research of high technology in the industry mainly focuses on the key parts such as engines, hydraulic pressure, transmission and control technology. After the high-end technology manufacturing of the basic parts is placed in China, a large number of equipment and technologies supporting the parts will gradually mature.

1, local production, shorten the order and delivery time, production close to the user, through professional production to make the manufacture of key parts and components to form a reasonable economic scale while ensuring the quality of components and relying on components to achieve the enterprise's own technical characteristics.

2, pay attention to the integration design of key components and the host, and further improve the standardization and generalization of parts and components, to minimize maintenance.