Since the 12th Five Year Plan, China's equipment manufacturing industry, especially the construction machinery industry, has developed rapidly, the industrial system has been continuously improved and perfected, the ability to innovate skills has been significantly enhanced, and the international status and influence have made significant progress; Along with this, the strength of Chinese companies continues to improve. Currently, China has become a well deserved manufacturing powerhouse on a global scale. The construction machinery profession is China's sunrise industry. The production concentration and admission difficulty of this profession are relatively high. In the future, the construction machinery market will inevitably move towards high-end and intelligent directions, and the operation of the profession will become increasingly standardized. Engineering machinery companies should seek endogenous growth and innovation, and embrace the opportunities and challenges of the future market with an international perspective. It is predicted that the international demand for mainframe products will reach 210 billion US dollars in 2015, and China's exports of construction machinery products will reach 26 billion US dollars, making it an international export powerhouse.
We are delighted about the thriving development of the construction machinery industry. Although some achievements have been made in the development of the supporting parts industry closely related to the host, the level of development of the entire supporting parts profession is still not very high, especially the key skills of key components such as hydraulic parts, transmission parts, control components, engines, etc. are still controlled by foreign companies.
Taking the power components of construction machinery as an example, the power function of machinery is one of the most important goals for measuring the skill level of goods. It includes two parts: the power function of the diesel engine itself and the system induction function of the whole machine power transmission. In addition to continuously improving fuel injection systems and reducing fuel consumption and low-carbon emissions, engineering machinery engines have specific requirements for torque storage and power output methods, functional matching, oscillation, and noise at low speeds.
In the field of transmission components in construction machinery, the current research and development level and methods of transmission components in Chinese construction machinery are about 30 years behind the international advanced level. There are still few domestic companies that can withstand the closed experimental method of load spectrum loading under working conditions. The accuracy and function of transmission gears are also far behind the international advanced level.
The above mentioned questions also exist in the essential components of construction machinery - hydraulic parts. Undoubtedly, hydraulic components are one of the key components of construction machinery products. They can not only reflect the overall operating power, simplicity, and comfort of construction machinery products, but also the primary source of problems in overall operation. For a long time, domestic component companies have been unable to meet the matching requirements of host companies in high-pressure and high flow hydraulic devices, which has made imported hydraulic components the only choice, especially in excavator products. As a result, Chinese construction machinery, especially excavation machinery, is constrained by foreign manufacturers' supply of critical hydraulic components.
In summary, while continuously accelerating the development of the construction machinery industry and actively promoting the development of the construction machinery supporting parts profession, it not only plays an important role in improving the quality of China's construction machinery main engine products, but also relates to the further progress of the overall level of China's industry.

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