The first major equipment (set) of Suzhou, Wuxi, and Changzhou refers to the first international or domestic high-end equipment and key components that enterprises in Suzhou, Wuxi, and Changzhou have made significant breakthroughs in variety, specifications, or technical parameters through research and development innovation, and have independent intellectual property rights. The overall performance or core technical indicators of the equipment have reached the domestic leading or international advanced level of similar equipment.
Changli Machinery focuses on the technological research and development and manufacturing of metallurgical equipment and coke oven machinery. The CL-L-6.73 stamping coal and coke pushing integrated machine (6.73mSCP integrated machine) developed by the company is a single coke oven equipment with the world's largest weight of a single coal cake, integrating stamping coal and coke pushing. The equipment weighs over 1500 tons, has a stable and reliable steel structure system, runs smoothly, and solves the problems of obvious shaking, large deviation in automatic alignment accuracy, and easy loosening of components in the running and stamping operation of similar products; By using automatic weighing and feeding heavy hammer tamping technology, the technical difficulties of unable to accurately calculate the weight and water content of tamped coal cakes, as well as long tamping time, have been overcome; The use of carbonization chamber furnace wall temperature measurement technology greatly reduces the risk of manual temperature measurement; The use of collapsed coal recovery technology has solved the problem of the inability to quickly and automatically clean collapsed coal cakes; Fully automatic control with "manned and unmanned operation" has been achieved. The successful development of this equipment has broken the monopoly of similar products from developed countries in both domestic and international markets, and has led the world in the large-scale, green, high-end, and intelligent equipment manufacturing process in the coking industry.

The selection of the first unit (set) is not only an affirmation of Changli Machinery's technological innovation ability by the superior department, but also a milestone achievement of the company's adherence to innovative development. Changli Machinery will continue to increase independent research and development investment on this basis, stimulate innovation motivation, improve technological level, and drive high-quality development in all aspects of the company through innovation, striving to become an industry benchmark.