Sichuan Chuanmominji CNC Machine Co., Ltd. Was established on October 26, 2011. Chuanmominji is a leading enterprise in the grinding machine industry in China, which focuses on research and development, production and sales of various machine tools, applies advanced design concepts, closely follows the forefront of scientific and technological progress, and creates a pioneer in the industry. Chuanmominji not only has the advanced imported processing equipment from West Germany, Wadrisi, the Czech Republic, Germany, Italy, the United States, Russia and other countries, but also has nearly 100 professional and technical talents and skilled craftsmen. The company mainly researches and develops grinding machine series: CNC gantry type surface grinder series, horizontal axis rectangular table type surface grinder series, CNC movable column type surface grinder series and CNC gantry guide rail grinder, CNC horizontal axis rectangular table type surface grinder, horizontal axis circular table type surface grinder, tool grinder, internal and external cylindrical grinder, vertical circular table grinder, centerless grinder, gear grinder, special grinder and more than 50 varieties. For many years, CMR has been drawing on foreign advanced technology and relying on independent innovation to continuously narrow the gap with foreign advanced technology. By developing the error modeling principle and analysis model of the longitudinal motion of the grinding machine workbench and the vertical feed motion of the grinding head, the precision control model and error compensation method of the grinding machine are proposed, and finally the integration of 3D CAD modeling, FEA for finite element structure analysis, optimization design, driving elements, control system design, accuracy evaluation and error modeling of high-precision grinding machine series products is realized, A series of high-precision grinding machines meeting the requirements of machining performance have been developed and popularized. Through joint development with Chinese Academy of Sciences, Sichuan University, Southwest Jiaotong University, Xihua University and other professional institutions, the company overcame problems and further developed new products. The MK7140C high-precision CNC surface grinder developed and launched is the first product in the province. The CNC gantry grinder developed by Chuanmominji is aimed at the national strategy of "German Industry 4.0" and "Made in China 2025". It is required for high-end CNC grinding machines in China at present, fills the gap of CNC grinding machines with independent intellectual property rights in China, and is a grinder that many domestic enterprises must choose. It is applied to large-scale high-precision molds, aerospace, shipbuilding, national defense and military industry, large-scale precision mold manufacturing, military equipment, high-speed rail parts Auto parts, motorcycle parts, plastic machinery, textile machinery, printing machinery, packaging machinery, power machinery and other industries. The development and application of CM-K series gantry CNC surface grinding machine can improve the independent research and development capability of large and high-precision grinding machines in China, meet the development requirements of machine tool product research and development technology, and meet the development needs of the overall situation of the precision machine tool industry.