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On November 12, 2011, China's first CNC cutting bevel gear cutting machine YKA2260 successfully took off in Changsha. Hunan Zhongda Chuangyuan CNC Equipment Co., Ltd., a major technological innovation, broke the monopoly of high-performance machine tools and equipment from American and German manufacturers, and reduced the cost of domestic manufacturers to purchase similar equipment by 50%.
A 600 mm diameter high hardness alloy steel gear blank casting is placed in the machine tool for 6 minutes to be formed into a spiral bevel gear for use on heavy trucks. 
In recent years, with the rapid development of China's automobile, construction machinery and Other industries, the demand for precision spiral bevel gears is increasing, and the annual demand is about 6 million sets. However, spiral bevel gear machining has always used the wet cutting method, that is, oil and water are used to cool the large amount of heat generated when the machine tool cuts parts. The process is complicated and the energy consumption is huge. Wonderfully, scientists have discovered that when mechanical cutting reaches a certain high speed, cutting is instantaneously completed, and the amount of heat generated is rather small. Without cooling, heat can be dissipated directly in the air. However, to find and maintain such a critical state requires a systematic breakthrough in CNC machine tool rigidity, structure, processing software, and process methods. Prior to this, only one company in the United States and Germany in the world mastered the spiral bevel gear dry cutting technology.
According to the introduction of Hunan Zhongda Chuangyuan, they have established the first CNC spiral bevel gear research institute, gear testing room, software and electrical testing room, etc. After numerous tests, they finally overcome this major technical problem. Dry-cutting machine tools use less than 18 minutes of wet gear for machining an automotive gear. The power consumption is only about 25% of wet cutting. No oil or water cooling is required to achieve zero pollution. Moreover, the price of such a machine tool is less than half that of similar foreign products.
Conventional gears used in conventional machine tools are wet cutting, while YKA2260 machining is purely dry cutting. Its machining efficiency is 2 to 5 times that of wet cutting. No oil or water cooling is required during the period, resulting in zero emissions of pollution. Moreover, the power consumption of dry cutting is also more than 75% less than wet cutting. 
With the continuous progress in production technology, automotive, construction machinery and other industries, the demand for precision spiral bevel gears is increasing, but for its processing machine tools and its processing technology, has been monopolized by a small number of foreign companies, domestic gear processing The factory had to spend a lot of foreign exchange to introduce this machine.
China's first CNC spiral bevel gear dry cutting machine, Zhongda Chuangyuan has completely independent intellectual property rights. Previously imported from abroad, CNC spiral bevel gear dry cutting machine, the price of up to 10 million yuan each, and now buy the company's similar products, only four or five million.