Although the development of construction machinery is good, China's mechanical parts are dependent on imports to meet the needs of China's machinery parts. At present, China's construction machinery industry is in a high-level operation stage, and construction machinery enterprises have shown a thriving situation. However, the matching parts are like a rope that covers the neck of the company, making it difficult for them to sleep. Recently, he visited Ma Chuanwei, Secretary General of the Engineering Machinery Parts Branch of China Construction Machinery Industry Association, and asked him to talk about the current problems in China's engineering machinery parts industry and analyze the development prospects. With the package constraints , China's construction machinery, especially small construction machinery, has broad market prospects. The market for small excavation is very clear. It is expected that by the end of the “Eleventh Five-Year Planâ€, the market demand for small digging may reach 50,000 units. In addition, the market for small construction machinery such as the forklift truck, the skid steer loader, and the two busy machines are also in the process of cultivating, and there will be great development. But so far, the pumps, valves, hydraulic parts and other supporting parts required for small construction machinery are basically all imported. The foreign supporting parts enterprises must first meet the needs of their domestic enterprises, the second must meet the needs of foreign-invested enterprises in China, and the third should consider the needs of local enterprises in China. The restrictive effect of this situation on China's construction machinery manufacturers will become more and more obvious. This year, China's construction machinery enterprises have paid over a year and a half to the foreign supporting parts enterprises, and still can't get the goods, such as Hefei Zhenyu; if everything is installed, they will wait for a valve, but the Japanese company is late. Late supply is not available, such as Yuchai Machinery; last year's Xu-cut machinery, ordered to Japanese companies at the beginning of the year, the result is not delivered at the end of the year, resulting in zero output of the excavator. Not only the delivery period can not be guaranteed, at the same time, the price of a full set of hydraulic systems purchased from abroad generally has no room for negotiation; plus the pre-sales and after-sales service are not in place, which greatly restricts the development of domestic construction machinery enterprises. Choosing a breakthrough In view of the overall development level of China's construction machinery and the current specific situation, Ma Chuanwei suggested that small excavation and other small engineering machinery parts should be used as a breakthrough to promote the overall development of China's construction machinery parts industry. At the annual meeting of China's construction machinery parts industry, Ma Chuanwei and the relevant person in charge of the accessory parts committee suggested that the manufacturers should pay attention from focusing on small excavation parts to taking care of other small engineering machinery parts, with small excavation parts as a breakthrough. To promote the all-round development of other small construction machinery parts. To realize the all-round development of small engineering machinery parts including small digging, it is an important part to realize its static pressure transmission. At present, small hydraulic engineering tools such as small wheel loaders, backhoe loaders (both busy), skid steer loaders, telescopic forklifts, and small-tonnage forklifts require a large number of hydraulic components. Partly depends on imports. Internationally, most of the loaders below 3.0 tons in advanced countries have realized static pressure transmission, and almost all of the loaders with an annual output of more than 100,000 units in China are hydraulic transmission. At present, only Shandong Longtai, which can produce static pressure transmission components in China, can produce static pressure transmission loaders of less than 3.0 tons, but it is only starting production, not mature, and the production is still complete. In addition to the key technology constraints, Ma Chuanwei believes that another important aspect of the gap between China's construction machinery parts and foreign products lies in its reliability. It is reliable to produce ten or eight pieces in small batches, and the quantity is not reliable. Product reliability is related to management, process equipment, and process routes. In general, the factors currently affecting the reliability of Chinese components are mainly raw materials, especially the quality of steel. The domestic engineering machinery enterprises are generally not large in size, and they require special purchases from steel mills, and others ignore them. There are also gaps in technology and equipment from abroad. There are flexible production lines in foreign countries, and each procedure has strict control. There are also problems with heat treatment. The reliability of the components produced in this way is not good, which leads to the failure of the quality of the host. For example, the engineering machinery products produced by foreign companies are generally the first failure in 1000 hours, and our products are only 400,500 hours. Reliability issues are not resolved, even if they are sold cheaper, users will not buy it. If we do this, the status quo of the mechanical parts I have passed will be greatly improved, the demand for imports will gradually decrease, and the rapid development of China's economy will be driven.
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