en.Wedoany.com Reported - CISDI has built the world's first set of small-diameter three-roll six-stand continuous tube rolling mill, breaking the monopoly of universal rolling mill equipment, and achieving stable and economical carbon reduction of over 10% in long-process steel plants through its "extreme hydrogen enrichment + top gas recycling" carbon-hydrogen blast furnace technology. This leading domestic technology and engineering company is committed to enhancing traditional manufacturing levels through independent research and development of core equipment.
Against the backdrop of profound structural changes in the steel industry's supply and demand, shifting from ordinary steel to high-performance steel varieties, and transitioning from importing foreign technology to achieving self-sufficiency and control over the industrial and supply chains, CISDI focuses on major industrial demands. It intensifies research on key technologies with an average annual investment intensity of 4% of its revenue. The company has established a complete chain from applied basic research, applied technology development, to productization and industrialization, promoting self-sufficiency and control over the entire steel manufacturing process technology, core equipment, platform software, and control models.
CISDI's subsidiary, CISDI Equipment Co., Ltd., located in the Chongqing Hub Port Industrial Park, serves as its R&D pilot base, core product manufacturing base, and equipment manufacturing integration base. Covering approximately 400 mu (about 26.7 hectares), it boasts over 40 high-end equipment products. In February 2026, the third phase of the CISDI Equipment plant was put into operation, and upon full production, the annual comprehensive capacity is expected to reach a scale of 5 billion yuan.
In terms of core equipment, CISDI has successfully developed high-efficiency, high-quality, intelligent three-roll continuous tube rolling complete equipment technology (CCTM), offering customized services for units covering full specifications from Ф89 mm to Ф610 mm. CISDI Equipment is currently manufacturing the world's largest modern two-roll inclined tube rolling mill, capable of producing high-alloy seamless steel pipes with a maximum outer diameter of Ф1130 mm. For the special steel sector, CISDI's independently developed HMBC® modular high-speed rolling mill boasts a rolling capacity over 20% higher than traditional models, with a maximum rolling speed of 115 m/s, and has been applied in over 200 units. The BRSB bar three-roll reducing and sizing block currently under testing achieves finished product dimensional accuracy of only 1/2 to 1/3 of the deviation value specified in the national standard Group I. Additionally, CISDI's UMCD® fully hydraulic closed-frame universal rolling mill equipment has been applied in over 30 units, establishing the first fully domestically produced large-scale universal heavy rail and section steel production line.
In the field of low-carbon transformation, CISDI has innovatively proposed a carbon-hydrogen coupled enhanced reduction theoretical system and pioneered the CISDI-3R low-carbon blast furnace, with main technical indicators reaching internationally advanced levels. The first-generation product has been applied to seven 2000 m³-class blast furnaces. Its developed third-generation green electric arc furnace product, CISDI-SuperARC, improves electrical energy utilization efficiency by over 10% and reduces carbon emissions per ton of steel by 10% compared to conventional electric arc furnaces. Furthermore, CISDI possesses the fully proprietary CISDI HYGRIF® hydrogen-based shaft furnace direct reduced iron process, capable of directly reducing medium and low-grade pellets and vanadium-titanium magnetite. Its green and efficient solid waste rotary hearth furnace treatment equipment has been built in 20 units, processing 5 million tons of dust and sludge solid waste annually, recovering 2.5 million tons of iron resources and 100,000 tons of zinc resources.
CISDI Equipment benchmarks international advanced standards, establishing an enterprise standard system covering the entire product lifecycle and a three-in-one productization standard comprising "national and industry standards + enterprise general standards + product-specific standards." According to the company's head, through detailed after-sales service records, complete records of any product's historical quality issues can be retrieved within one minute. Currently, CISDI Equipment is building a digital smart factory based on an industrial internet platform, constructing a digital interconnection system for the equipment industry covering production, supply, and sales using a "chain master factory + industrial interconnection platform" model.
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