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On September 26, 2011, Xugong Group's first DE170 electric drive dump truck was off the assembly line at Xugong Research Institute and participated in the BICES exhibition held in Beijing on October 18-21. The vehicle adopts an overall axle-type and rear-discharge type structure. The vehicle is 13 meters wide, 7 meters high, and 6 meters in weight. Its body weight is 110 tons, and its carrying capacity is 170 tons. Its huge body resembles King Kong's life and is devotion to God. DE170 transmission system uses the current international advanced AC-DC-AC transmission drive technology, marking the Xugong Research Institute has made major breakthroughs in the research and development of large-tonnage electric drive dump trucks.
As the pillar industry of the national economy, the mining machinery industry plays an important role in China's economic construction and social development. Especially during this century, with the continuous and rapid development of the country’s macroeconomics, the development of the western development strategy, the revitalization of the equipment manufacturing industry and the rise of the central region and other series of industrial policy support, and the impact of the transfer of the world’s machinery industry, China’s major technologies The achievements in equipment autonomy are remarkable, and the level of mechanical products has made great progress. 
During the 12th Five-Year Plan period, China's economy will continue to maintain a steady and rapid pace of development. The ever-increasing infrastructure construction and the continued heating up of mineral energy demand will inevitably drive the rapid development of the mining machinery industry. As a kind of mine transport equipment, electric drive dump trucks are widely used in large-scale open-pit coal mines, iron ore, and chemical and water conservancy and hydropower construction because of their advantages such as heavy load, strong power, short shipping distance, and fast shipment. Xugong Research Institute is closely following the national policy of vigorously developing the large-scale non-road mining dump truck industry, seizing opportunities, and relying on high-quality research and development teams, has invested heavily in the development of electric drive dump trucks.
Electric drive dump trucks have been developed in foreign countries for decades. The basic technology has been very mature. Foreign brands mainly include Caterpillar, Terex, Japan Komatsu, etc. Their products are mainly concentrated in varieties of 100 tons or more. . Our country has long relied on imports of electric drive dump trucks. Compared to Japan and the United States and other mature electric drive dump truck manufacturers, the development of domestic electric drive dump trucks started late, the technology is weak and the reliability is low.
In recent years, with the rapid economic development of China's neighboring countries and African countries, its infrastructure and the development of new large-scale mines have caused the demand for dump trucks to continue to grow rapidly. The user's choice has determined that it is tending to increase in size and the application of new technologies. For mines with different mining scales, they are striving to use large-tonnage models as much as possible to reduce the total number of vehicles. The choice of the tonnage of the electric drive dump truck by the user will depend on whether it helps to increase the production efficiency of the mine.
On the one hand, in order to pursue production efficiency, large-scale mines prefer to use heavy-duty off-highway dump trucks; on the other hand, due to the constraints of their own conditions, small and medium-sized mines are more suitable for non-dumping loads of 91-216 tons. Road dump truck. However, the overall trend is that users will use larger non-highway dump trucks according to their own conditions. In addition, the economic life of electric dump trucks is generally about 10 years, and the annual turnover rate is 10%.
Xugong Research Institute is the incubator base of Xugong Group's new products and core components. It relies on the strong R&D strength accumulated by Xugong Group in the engineering vehicle field for more than 20 years. Xugong Research Institute has established a special mine card research institute to carry out project specialization. The DE170 electric drive dump truck was successfully developed. The vehicle adopts an integral axle-type, rear-discharge type structure. The transmission system adopts the current international advanced AC-DC-AC electric transmission drive technology. The car fully owns independent intellectual property rights and has received more than 150 patents.
The electric drive system is the core component of the electric wheel dump truck. The DE170 electric drive system was jointly developed by the XCMG Group and the CNR Group. The research and development of the electric drive dump truck AC drive system was developed on the basis of the CNR electric drive transmission system. The successful application of this technology has broken the monopoly of foreign companies.
This technology uses domestic generators, frequency converters, variable frequency motors and domestic core control systems to achieve complete localization and improve the market competitiveness of domestic electric drive dump trucks. XCMG is the first company in the world to use AC-DC-AC transmission drive technology on 170-ton electric dump trucks, which reflects the determination and strength of XCMG to revitalize the national industry.