Recently, the first large-capacity SGZ1400 / 5400 (4800) intelligent conveying system produced by China Coal Zhangjiakou Coal Mine Machinery Co., Ltd. passed the factory assessment. Zhang Yong from China Coal Machinery Industry Association and over 30 users and expert representatives from domestic large-scale coal enterprises such as Yanzhou Mining Group Co., Ltd. made site comments on the equipment. During the council meeting, Li Guoping, the executive director and general manager of the coal machine company, extended a warm welcome to China Coal Machinery Industry Association and various user representatives. Mu Runqing, deputy general manager of Zhangmei Coal Company introduced the research and development and technical characteristics of the SGZ1400 / 5400 (4800) -type complete set intelligent conveying system of oversize mining. Li Zheng, deputy chief engineer of Yanzhou Mining Group Co., Ltd., Song Yinlin, deputy chief engineer of Datong Coal Mining Group Co., Ltd., respectively, spoke highly of the technical level of the ultra-large mining complete intelligent conveying system and put forward opinions and suggestions on equipment improvement and performance improvement. Zhang Yong pointed out that the research and development of SGZ1400 / 5400 (4800) -type intelligent transportation system has a great deal of innovation and improvement. The research and application of technologies such as autonomous positioning, attitude perception, remote monitoring and internet represent the development of China The present level of coal machine development and the development direction of coal industry in the "13th Five-Year Plan" have realistic and instructive significance for accelerating the reform of supply-side structure and promoting the localization of equipment. On behalf of Zhang Coal Machine Co., Ltd., Li Guoping thanked experts and users for their comments and said that Zhang Coal Mining Company will continue to strengthen research and improvement to promote the steady improvement of functions and performance of related new products so as to provide customers with the best products and best services, For the modernization of large-scale international coal base construction, production and efficient mine construction equipment to provide security and technical services.