Rapid development of China's heavy machine tool ma

The rapid development of China's heavy machine tool manufacturing industry

in more than eight years since entering the 21st century, China's national economy has maintained a healthy, sustained and rapid development momentum, creating a good environment for the rapid development of China's heavy machine tool industry. In recent years, the total industrial output value, product sales revenue, total profit and order volume of heavy machine tool enterprises have increased by more than 40% every year, which is higher than the average growth rate of the national machine tool industry. It can be seen that the demand situation and market capacity of heavy machine tools provide a very good development environment and rising space for the product development, production and sales of China's heavy machine tool manufacturing enterprises

I. development overview of China's heavy machine tool industry

according to the regulations of the machine tool Bureau of the former Ministry of machinery industry, machine tools with a dead weight of machine tools within tons belong to large machine tools, tons belong to heavy machine tools, and more than 100 tons belong to super heavy machine tools. With the rapid development of the machine tool industry, the self weight of the machine tool is still taken as the industry boundary, which obviously lacks the characteristics of the times and science. In recent years, with the development of heavy machine tool industry, the boundary of large, heavy and super heavy has been questioned and needs to be redefined. However, since there is no unified definition, we still use the original concept to define heavy machine tool and analyze the current situation of heavy machine tool industry

in the era of planned economy, the varieties and specifications produced by China's machine tool manufacturers have strict regulations and division of labor. For example, Beijing one machine tool only produces milling machines, Shanghai machine tool factory only produces grinding machines, Shenyang one machine tool only produces horizontal small-size lathes, Qiqihar one machine tool only produces vertical lathes with a diameter of less than 3.5m and horizontal lathes with a diameter of less than 2m, Kunming Machine Tool Factory and Zoje friendship factory only produce horizontal boring machines with a boring bar diameter of less than 110mm, etc. the layout with clear division of labor shows the planned economic characteristics of the whole country. During the first five year plan period, the state began to establish Wuhan heavy machine tool factory, the first professional manufacturer specializing in the production of heavy machine tools in China, in the construction of 156 key projects. Since it is a heavy machine tool factory, Wuzhong's products include more than 30 tons of lathes, milling machines, boring machines, grinders and other comprehensive products. In the era of planned economy, China's heavy machine tool industry has also made brilliant achievements. Wuchongsheng electromechanical produces China's first heavy-duty 6.3m vertical lathe. Therefore, China's post and telecommunications department specially publishes commemorative stamps. Jinan No.2 Machine Tool Co., Ltd. produced a heavy gantry planer with a processing width of 6.3m for Deyang Erzhong, which also caused a sensation all over the country. In the era of planned economy, the manufacturers that can provide heavy machine tool products mainly include Wuhan heavy machine tool factory, Qiqihar first machine tool factory, Qiqihar second machine tool factory, Jinan second machine tool factory, Beijing first machine tool factory, Qinghai heavy machine tool factory, Shanghai heavy machine tool factory, Xianfeng machine tool factory and a number of national backbone enterprises. These enterprises undertake the manufacturing task of key heavy processing equipment required by the construction of national key projects

after the reform and opening up, China's national economy has entered a stage of rapid development, especially in the more than eight years since the beginning of the 21st century, which has provided unprecedented strategic opportunities for the development of heavy machine tool products. Driven by strong market demand, China's heavy machine tool industry has witnessed a prosperous situation of production and marketing. Today, the heavy machine tools and super heavy machine tools developed and manufactured by China have basically met the needs of national key projects, and have created the world's most extreme specifications for many times

for example, China has manufactured Super Heavy CNC vertical milling lathe and boring bar diameter with processing diameter of 25m Φ 320mm floor type milling and boring machine, CNC gantry boring and milling machine with processing width of more than 5m, and rotation diameter of Φ CNC heavy-duty horizontal lathes with more than 5000mm and a number of heavy-duty machine tool series products with independent intellectual property rights and technical level close to the world advanced level. Since entering the market economy, the tradition has been broken and the division of labor has been cancelled. China's manufacturers of heavy machine tools have far exceeded the scope of the original professional factories of heavy machine tools

in the past eight years, some manufacturers that have never been involved in heavy machine tools have also expanded their reproduction, seizing the territory of heavy machine tools, and becoming bigger and bigger. Such as Shenyang Machine Tool Group, Dalian machine tool group, Guilin machine tool factory, Xinrui machine tool group (Jiangsu Duoleng), Kunming Machine Tool Factory, Tianshui Xinghuo machine tool factory, Ningbo Haitian Precision Machinery Co., Ltd., Hanchuan Machine Tool Co., Ltd., Dahe machine tool factory and other new forces. At the same time, some heavy machine tool enterprises that originally produced a single variety have also invested a lot of money in technological transformation in recent years, and have also begun to enter the development and production of comprehensive products such as vertical lathes, horizontal lathes, floor milling and boring machines, gantry boring and milling machines, and some have formed a certain series of models. Such as Qizhong CNC Equipment Co., Ltd., Qier group, Jinan No. 2 machine tool, Beijing No. 1 machine tool, Xinrui machine tool group (Jiangsu Duoleng) and other enterprises

market demand has fostered the development of China's heavy-duty machine tool products and improved the technical level, which has also led to the reshuffle of heavy-duty machine tool manufacturers. The team of China's heavy-duty machine tool manufacturers has been distributed in the whole machine tool manufacturing industry. Even Ningjiang machine tool factory, which used to only produce small machine tool products, has developed xh2525 and xh2425 large-scale CNC gantry milling machine series. At the same time, the factory is developing towards high-precision crank NC vertical turning and milling compound machine tool, heavy horizontal lathe, horizontal crankshaft lathe, heavy floor boring machine, super heavy moving column gantry machining center, medium and large horizontal gear hobbing machine and medium and high-grade vertical machining center. With the rapid development of national economy and the cultivation of user demand market, the level of China's heavy machine tools will continue to develop to a higher level, and the heavy machine tool manufacturing enterprises will also continue to update and grow. According to incomplete statistics, the number of heavy machine tool manufacturing enterprises that can provide mature products according to market demand in China at this stage is as follows:

Heavy CNC vertical lathe: manufacturing and processing diameter Φ There are 8 5 meters; Manufacturing diameter Φ There are three 8 meters; Manufacturing diameter Φ There are three 10 meter; Manufacturing diameter Φ There are two 16-25 meters

Heavy CNC horizontal lathe: manufacturing rotary diameter Φ There are 6 2 meters; Manufacturing swing diameter Φ There are 6 2.5m; Manufacturing swing diameter Φ There are four 4 meters; Manufacturing swing diameter Φ There are 2 more than 5 meters

Heavy CNC Floor milling and boring machine: manufacturing boring bar diameter Φ The faults of 160mm testing machine are often found in oil hole infarction, belt looseness, viscosity of engine oil, whether there is oil leakage, whether the oil quantity is sufficient, etc; There are 6 manufacturers of boring bars with a diameter of 200mm; There are 4 manufacturers of boring bars with a diameter of 260mm; There are 2 manufacturers of boring bars with a diameter of 320mm

Heavy CNC gantry boring and milling machines: there are more than 50 manufacturers with a processing width of. 5m; There are 18 manufacturing and processing enterprises with a width of 3 meters; There are 11 manufacturing and processing enterprises with a width of 4 meters; There are 8 manufacturing and processing enterprises with a width of 5 meters; There are 3 manufacturing and processing enterprises with a width of more than 6 meters

China can provide many kinds of heavy machine tools (CNC gantry boring and milling machines, CNC vertical lathes, CNC Floor milling and boring machines, CNC horizontal lathes), including Wuhan Heavy Machine Tool Group, Qiqihar No.2 Machine Tool Group, Qizhong CNC Equipment Co., Ltd., Beijing No.1 Machine tool, Jinan No.2 Machine tool, Shenyang Machine Tool Group, Xinrui machine tool group (Jiangsu Duoleng), Xinghuo machine tool group, etc

it is worth mentioning that under the prosperous market and good development environment, due to the lack of sufficient analysis and demonstration of the market, some enterprises have successively entered the ranks of heavy machine tool manufacturing, and there are signs of overheating of heavy machine tool manufacturing industry. Blindly investing a lot of money in low-level repeated construction will inevitably lead to overcapacity and disorderly competition

II. Main products of China's heavy machine tool manufacturing industry

under the cultivation of the market, China's heavy machine tool manufacturing industry has greatly improved its product technology level and manufacturing capacity. Some have reached or approached the world's advanced level, and the technical level of some products has stepped into the world's advanced ranks, such as vertical milling lathes. China has developed and manufactured the world's largest CNC milling compound machining center with a machining diameter of 25 meters. At present, it is developing the world's most vertical milling lathe with a machining diameter of 29 meters and five axis linkage. Heavy CNC vertical lathe series products, China has fully met its own needs, and some products are exported; CNC heavy-duty horizontal lathe, China has developed and produced a super heavy-duty CNC sleeper with a processing diameter of 5 meters, a processing length of 20 meters and a bearing weight of 500 tons. It is also the world's largest bearing capacity in the heavy-duty CNC horizontal lathe series. At present, China can produce and process a CNC horizontal lathe with a maximum straight diameter of 6.4 meters. Floor type CNC milling and boring machine series products have been developed and produced, and the diameter of boring bar is Φ 320mm, the world's largest heavy CNC Floor milling and boring machine. In the milling and boring machine series, five axis linkage development has been completed and batch products have been formed. Gantry boring and milling machine is a heavy-duty machine tool product with the fastest development and the largest number of manufacturers in China. In order to meet the needs of different types of users, we can provide a series of products with multiple varieties and specifications, such as gantry fixed type, gantry mobile type, double gantry mobile type, beam fixed type, beam mobile type, gantry beam mobile type, overhead bridge and so on. In terms of specifications, China has been able to mass produce heavy CNC gantry boring and milling machines with processing width of more than 5 meters and processing length of more than 20 meters. At present, some manufacturers are developing and producing gantry mobile CNC boring and milling machines with processing width of 9.6m, processing height of 8m, processing length of 58m and circular rotary worktable. In the gantry boring and milling machine series, high-speed machining, forming machining and five axis linkage machining technology have been widely used. CNC roll 12. Final grinding machine China has developed grinding diameter Φ 2500mm, 15000mm grinding length and 250t load-bearing CNC heavy-duty roll grinder. Diameter can be manufactured and processed in China Φ 12500mm heavy gear processing machine. CNC special machine tools such as heavy crankshaft processing, deep hole processing, railway vehicles and guide rail grinder have formed a series of products to meet the processing needs of various user industries