Cylinder liner is a long-term national key support industry. In recent years, with the sustained and rapid development of China's economy, China's cylinder liner industry has ushered in a period of opportunity for rapid development. In 2008, the output of cylinder liners reached 51.82 million pieces.

 

    The continuous improvement of industry concentration is one of the trends in the development of the cylinder liner industry in recent years. In 2006, 2007 and 2008, the total output of the top five in the industry was 33.64 million, 34.75 million and 43.73 million respectively, accounting for 72.3%, 76% and 80.2% of the total industry in that year. Among them, the production and sales volume of cylinder liner of Henan Zhongyuan Internal Equipment Co., Ltd. has ranked first in the Chinese market for 21 consecutive years, and has ranked first in the Asian market for 19 consecutive years, and currently maintains the second position in the world; The market share of vehicles, construction machinery, ships, agricultural machinery and other fields ranks first in the industry; it is the only company in the industry that has entered the global procurement system of internationally renowned companies such as Ford, GM, Chrysler, Cummins, Mercedes-Benz in Germany, Volvo in Sweden, and Fiat in Italy. enterprise. The output of Yangzhou Wutingqiao Cylinder Liner Co., Ltd. exceeded 10 million pieces, becoming the second company in the industry with an output of more than 10 million pieces. Shijiazhuang King Kong Internal Combustion Engine Parts Group Co., Ltd. produces cylinder liners, pistons, piston rings, piston pins and other parts, and is the most complete manufacturer of internal combustion engine accessories in the industry.

 

    With the improvement of the country's environmental protection emission requirements, the cylinder liner industry has strengthened its independent innovation ability, which is mainly reflected in: the continuous introduction of new cylinder liner materials and the gradual improvement of reliability; the continuous improvement of machining accuracy and mesh technology, and the accelerated frequency of new product updates. ; The application field of internal combustion engine cylinder liner is further expanded; the ability of simultaneous design and simultaneous development is improved; energy saving, environmental protection and economy have become the development direction, and the cylinder liner that meets the emission requirements of Euro III and Euro IV has been developed, shortening the gap with the international level. The global procurement of parts and components has improved the comprehensive management level of the industry, and China will gradually become a global production base for engine parts.