The current development of cranes but the bottleneck has yet to be tackled jointly

At present, what are the obstacles to the development of engineering crane machinery industry? Which key common technologies are the bottleneck restricting the development of the engineering lifting machinery industry?

Under the traction of a series of problems, the "Engineering Lifting Machinery Technology Innovation Strategic Alliance" seminar came from Xugong, Zoomlion Heavy Industry, Jingcheng Heavy Industry, Liugong, Shanhe Intelligence, Foton Lovol, Dalian Heavy Industry and other engineering crane industry Leaders of key enterprises and experts from universities and research institutes such as Dalian University of Technology, Tongji University, and Tianjin Institute of Construction Machinery, focusing on key common technologies, R&D platforms and sharing mechanisms that restrict industry development, and innovative strategic alliances for engineering lifting machinery industry How to construct and difficult problems and hot spots that need to be solved urgently have been discussed effectively. The conference succeeded in sorting out the key common technical problems and the ways and means of solving the problems for the industry. The parties also reached a consensus on establishing a technology alliance for engineering lifting machinery that combines enterprise as the main body, market-oriented structure, production, study and research.

Accelerating the construction of a technological innovation alliance is a matter of hope

China is currently in a critical period of expanding domestic demand, accelerating infrastructure construction and industrial transformation and upgrading. The market demand for very large cranes is very strong. From 2002 to the present, the average annual growth rate of the whole industry has reached over 30%. In the next 10 years, investment in major national infrastructure projects will continue to increase, and new projects such as roads, railways, urban construction, new energy, and water conservancy construction will continue to increase. The peak period of large-scale projects for urbanization is approaching. At the same time, the domestic engineering construction companies also undertake a large number of international hoisting projects, and large-scale crawler cranes and other mechanical equipment are regarded as major development and new-type construction machinery.

Delegates said that in the face of good market prospects, domestic enterprises must take active actions to build a joint fleet of production, learning, and research and technological innovation to build the core competitiveness of the engineering lifting machinery industry. The achievements made by some foreign industry alliances have warned us that if we do not unite together, we will always run behind others, and we cannot break through the constraints of core technologies. In particular, the common technical problems cannot be solved well. It will not only lead to China’s major key projects’ heavy reliance on foreign products, causing the loss of large amounts of foreign exchange, but also will have a negative impact on national security.

Li Suoyun, deputy general manager of Xuzhou Construction Machinery Group Co., Ltd., proposed from the height of national and national missions that actively promoting the progress of the national industry is Xugong’s responsibility.

Li Suyun believes that in the construction machinery industry in China, compared with the United States, Japan, Germany and other engineering machinery powers, there is a big gap in the scale, strength, and brand influence of the company, especially product life, reliability, and products. Both technical and performance need to be strengthened.

According to reports, after nearly two decades of development, Xugong Group has become the largest group with the most complete product series, the most varieties, the most competitive and overall advantages in the field of construction machinery in China. The market share of the 12 major series of products ranks first in the domestic industry. . All-terrain cranes have grown to Asia's largest tonnage of 500 tons of all-terrain cranes. XCMG's mobile crane industry ranks fourth in the world for three consecutive years, ranking first in the world in terms of comprehensive efficiency and ranking first in the world in terms of truck cranes. In 2009, the group's total revenue reached 50 billion yuan, ranking 15th in the world construction machinery market.

Xugong's achievements are obvious to all. However, Li Suyun still said in a low-key manner that Xugong has a long way to go compared with foreign advanced engineering machinery manufacturers. Especially in the design and manufacturing of oversized tonnage products, there is still a big gap, which needs to be resolved through technological innovation.

Su Jie, chairman of the China Construction Machinery Industry Association and president of the Construction Crane branch, hopes to build valuable industrial alliances in the engineering lifting machinery industry, unify them in the value chain, and find ways that everyone can accept together. Promote the development of national industries. Cong Ming, vice president of the Dalian University of Technology’s Institute of Technology Research and Development hopes that the construction of the engineering crane alliance should draw lessons from the coal chemical industry alliance and the dye chemical industry alliance. Shi Laide, chairman of the China Construction Machinery Society, said that there is still a big gap between the development of China's construction machinery industry and foreign countries. With the establishment of the alliance, the resources of the host plant, supporting parts factory, research institutes, and users can be effectively integrated. For the industry to achieve from counterfeit to create, from low-end to high-end development to provide strong support. Zheng Shanglong, deputy director of the Tianjin Institute of Construction Machinery, explained the importance of alliance creation with national development strategies such as low carbon, environmental protection, and energy. Xiamen Chen Machinery Co., Ltd. Chairman Chen Ling pointed out from the alliance's organizational structure, operation mechanism, management methods and other aspects that the alliance must embody public welfare. Yi Koujing, chief engineer of Foton Lovol International Heavy Industries, believes that the alliance is a good way to make full use of social resources, and it can strive for national policy support and reduce duplication of investment. Zhang Erping, chief engineer of Guangxi Liugong Machinery Co., Ltd., hopes that the alliance members will form a joint force to enhance the overall competitiveness of the industry. Lv Xinmin, deputy chief engineer of Dalian Heavy Industry Lift Group Co., Ltd., hopes to obtain information support, integrate industry technologies, and jointly develop core components through the alliance's industry platform.

Technological weakness in the industry chain

"China's construction machinery parts production started relatively late, technology shortages, decentralized production, brand effect is not strong, poor product reliability, has become a bottleneck restricting the development of the host." Li Suoyun pointed out that the industrial chain determines the level of product competitiveness. For example, the technical level of iron and steel enterprises has caused a certain degree of restrictions on the development of the construction machinery industry. The hardness, elasticity, ductility, and other quality standards of steel products are directly related to the realization of the technological innovation of the mainframe of engineering machinery. In addition, the development of the automobile industry is closely related to the cranes. The maturity of the automobile chassis technology will play a decisive role in the improvement of the crane load capacity. Obviously, these aspects have a very large gap with Europe, the United States and Japan.

Li Suoyun pointed out that currently China's key components for large-tonnage cranes, such as hydraulic motors, hydraulic pumps, balancing valves, controllers, and engine core components, are basically dependent on imports. High-strength steels must also rely on imports. How to solve the problem of localization of key components The problem is the major issue we face. The development and localization of these key parts and components, relying solely on the R&D of R&D companies, will definitely not work in China, mainly because most of the companies in China have weak technical capabilities and lack of funds. At the same time, it is also affected by factors such as low enthusiasm for corporate innovation, high technical difficulty, and small production volume. The key parts and components are developed by the main engine plant and increased the operating risk of the main plant. There are also technical limitations. Therefore, scientific research institutes, main engine factories and domestic key accessory factories should establish strategic cooperative relations. The main engine plant puts forward requirements for working conditions, technologies provided by scientific research institutes, and supporting enterprises are responsible for manufacturing, exerting their respective advantages and jointly solving the key localization of matching parts. problem.

Gao Shunde, deputy dean of School of Mechanical Engineering of Dalian University of Technology, also believes that the development speed of domestic components lags far behind the development speed of cranes. The key components (such as slewing bearings, four-wheels, and moments that are matched with mega crawler cranes) Limiter, etc.) and main bearing member materials are generally imported. Key components and metal structural materials are subject to restrictions and tardiness by foreign manufacturers. After detailed analysis of the gaps and gaps between China's engineering lifting machinery technology and foreign advanced manufacturing enterprises, Gao Shunde introduced the construction plan for the strategic alliance of engineering lifting machinery industry technology innovation.

Formed 10 consensuses

Participants reached ten major consensuses through topical discussions:

1. Domestic companies need to unite to compete with multinational companies because foreign companies are already united, and domestic companies are very passive if they do not unite;

2. The alliance must have a roadmap for the technological development of the construction lifting machinery;

3. The alliance should pay attention to the integration of independent innovation technology resources throughout the country;

4. The alliance must find the key common technical problems that restrict the development of the industry;

5. The alliance must do more work in the industry's energy-saving and emission reduction, low-carbon economy;

6. The alliance must contribute to the development of technical standards for the industry and enhance the competitiveness of the industry;

7. To build an alliance must have the concept of the market and the vision of internationalization;

8. The alliance should consider the integration of industrial technology platform construction and independent technology manufacturing methods;

9. The alliance should carry out research on crane safety technology;

10. Proper handling of the relationship between alliances and competition requires a viable institutional guarantee.

With the continued investment in the country’s basic construction, the construction crane industry in China has seen rapid development in recent years. However, there is still a big gap compared with internationally renowned companies in terms of technical breakthroughs, product development, manufacturing processes, and corporate management. The main performance is that in the high-end market of oversized tonnage cranes (such as all-terrain cranes and crawler cranes over 1,000 tons), foreign companies still occupy a dominant position. To this end, it is imperative to carry out the research and development of construction cranes, build a joint fleet of production, research, and research and technological innovation, build the core competitiveness of the national engineering hoisting machinery industry, and build a strategic alliance for engineering lifting machinery technology innovation.

The strategic alliance for technological innovation of engineering lifting machinery will combine the “national equipment industry restructuring and revitalization” as a major national development strategy, combining equipment autonomy with key construction projects such as nuclear power, wind power and ports, and developing the whole machine and raising the basic supporting level. To implement the basic theory and application research of ultra-large mobile cranes, lay the foundation for the production of ultra-large mobile cranes, and to promote the development process of ultra-large mobile cranes to meet the urgent needs of large-scale mobile cranes.