The excavator believes many people have seen it, but the excavator is very special today. It is very large and 23.5 meters long. What is the concept that it is close to the largest living creature on the earth, the length of an adult blue whale, its strength, and the ability to dig up more than 50 tons of coal in a bucket. This amazing big block comes from Xuzhou, Jiangsu.
In April 2nd, Xugong Group's 700 ton hydraulic excavator was successfully released. The weight of this big Mac is equivalent to 500 ordinary cars, powered by more than two 99 main battle tanks. The bucket can stand 100 people at the same time, a bucket can go down to dig more than 50 tons of coal.
Su Zimeng, Secretary General of China Construction Machinery Industry Association: Xugong 700 ton hydraulic excavator is the largest tonnage hydraulic excavator developed by China.
Xugong Group Chairman Wang Min: in these high-end equipment, Xugong will compete face to face with world-class experts.
Not only is the tall appearance attractive, but the "conspicuous" connotation is more attractive. From components to operating systems, with 52 independent patents, China is the first to realize the centralized application of key core technologies in the field of super large hydraulic excavators.
Xu Donghai, deputy mayor of Xuzhou city of Jiangsu Province, symbolized that China became the world, after Germany, Japan, and the United States, fourth countries with 700 tons and above, the development and manufacturing capacity of hydraulic excavators, broke the monopoly of foreign brands.
According to the design requirements, this "big man" should ensure at least sixty thousand hours of safe running time and at least 30 thousand tons of material per day. In order to achieve such a standard, it is very demanding for the design and manufacture of the excavator chassis. If it is provided by foreign companies, at least 15 million RMB. Since the core technology has been monopolized by the international giants for a long time, the foreign suppliers are not willing to do so after learning that the Chinese enterprises also have to develop the super tonnage excavators. Their chassis is provided to China.
Xugong made up his mind to develop the chassis. It took five years to overcome the problem and filled the blank of the research and development of the "four round area" of the large hydraulic excavator in China.
Zhang Hong, deputy general manager of the mining machinery Department of XCG group: all the walking system is designed by ourselves, and after testing, it is completely in line with the design requirements. The self designed chassis is now estimated, and the cost is 5 million RMB.
In addition to the "four round" of such large components, as a core component, the 700 ton hydraulic excavator used another core component, the hydraulic cylinder is also developed by xcu.
If a excavator is compared to a man, then the arm, the bucket and the bucket are the arms and hands of the excavator. The hydraulic cylinder is the equivalent of the human arm and the muscles on the hand. The power and efficiency of the excavator depends largely on the hydraulic cylinder. The success of the development of the hydraulic cylinder of the 700 ton hydraulic excavator not only successfully broke the monopoly, but also quickly lowered the price in the international market.
Chen Dengmin, general manager of Xugong Group Hydraulic Parts Co., Ltd., Party Secretary of the Party committee: the first 700 tons of oil cylinders to import, a set of about 3 million, now if pure imports, reduced by about 30%, from 2 million to 2 million 100 thousand.
The industrial strong foundation project, one of the five major projects made in China made 2025, clearly requires that by 2020, 40% of the core basic components and key basic materials are guaranteed, and the situation is gradually relieved. Space equipment, communication equipment, power generation and transmission and transformation equipment, engineering machinery, rail transportation equipment, household appliances Advanced manufacturing processes such as spare parts and components and key basic materials, which are urgently needed by other industries, have been widely applied.
By 2025, 70% of the core basic components and key basic materials are guaranteed, and the 80 advanced technologies have been promoted and applied, and some of them have reached the international leading level.
Chen Dengmin: if you don't come, you can't buy it. This core must be done by ourselves. So we start from the material, including our material, the equipment of the follow-up process, the test of the process, and we can't get the foreign system. About.
Wang Min, chairman of XCP group: the position of Chinese engineering machinery is to move from middle and low end to middle and high end. When realizing the goal of middle and high end, we must break through the problem of technology and realize independent innovation so as to realize our own goal.
Data show that for a long time, the import cost of key components, such as engine, transmission system, hydraulic components, control components and other key components, accounted for more than 40% of the manufacturing cost, and the profit of nearly 70% of the industry was grabbed by foreign businessmen. The construction machinery industry is suffering from the weak foundation of the high-end core parts industry. However, after decades of accumulation and unremitting efforts, this situation is changing.
At present, Xugong Group products have been exported to 158 countries and regions in the world, and more than 280 overseas agents have been established worldwide. In 2017, XCMG products increased sharply in "The Belt and Road along the export growth of 51% in Central Asia, Africa, West Asia and North Africa region grew 119% growth of 107%, an increase of 80% in Asia Pacific region.
Chinese machinery is winning more and more customers. Every time a Chinese enterprise breaks a monopoly and conquered a model of equipment, the price of the whole industry will undergo a major adjustment.
Construction Machinery buyer Ann Zheng Hong: Crane this industry is like this, this tonnage domestic, as long as there is no production, foreign prices are very high, when we do not have 300 tons, imported cranes sold 23 million, our 300 tons, when selling 13 million, imported cranes sold more than 15 million, 23 million to 1 5 million, 8 million is gone, and prices in the US, Germany or Japan are coming down soon.
In fact, Xugong's investment in R & D has been growing continuously, and the annual R & D expenditure has been stable over 5% of sales revenue. At present, the research scope has covered more than ten aspects, such as hydraulic technology, transmission technology, intelligent control technology, whole machine technology, industrial design technology and so on. However, China's construction machinery still has a long way to go to shoulder the international brand.
Wang Min: China's manufacturing industry is now in a key point and key node. It is a strong to strong one. We must have our own sober mind. We are not blind and optimistic about the achievements and foundations that we have achieved in the past. We must not be too thin to create the gap that we have now. In terms of R & D investment, on the core technology breakthrough, we must insist on green hills and not let go.
Half an hour of observation: the core technology is not to be bought.
In December 2017, the general secretary of Xi Jinping pointed out that the equipment manufacturing industry is the backbone of the manufacturing industry. It is necessary to increase investment, strengthen research and development, accelerate development, make great efforts to occupy the world's commanding heights, control the right to speak, and make China a big country in modern equipment manufacturing. Innovation is the source of the core competitiveness of enterprises, and many core technologies are not available and can not be bought.
The large open pit mining machinery is the core component of the "crown pearl on the crown" of the high end equipment industry. It represents the highest technical level of the industry. After many years of continuous and unremitting innovation, China's large open pit mining machinery has reached the advanced level of the world. In order to make China's construction machinery occupy the commanding heights of the world and control the right to speak of technology, we still need to make greater efforts.
