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About UsZhengzhou Coal Mining Machinery Green Materials Technology Co., Ltd. (hereinafter referred to as the “Company”) is a wholly-owned subsidiary of Zhengzhou Coal Mining Machinery Group (hereinafter referred to as the “ZCMG Group”), and is an important component of the ZCMG Group’s coal machinery sector’s “integrated” and “intelligent” strategies.
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ProductsCast and forged parts for the entire series of hydraulic supports used in coal mining machinery, cast and forged parts for the entire series of scraper conveyors, castings for oil top drives, castings for gas turbine cylinders, castings for crushers, forgings for tunnel boring machines, and forgings for agricultural machinery equipment, among other products.
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Technological innovationThe company places great emphasis on the integration of industry, academia, and research, and has established a deeply integrated innovation system with universities and research institutions such as Zhengzhou University, Henan University of Science and Technology, Henan University of Technology, and the Zhengzhou Institute of Mechanical Research.
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BlogWe provide abundant industry insights and company updates to help you stay ahead of the market, grasp industry trends, and jointly create a bright future.
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Join UsPersist in advancing innovation and development in tandem, closely following market demands and continuously pushing beyond our own limits.
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Contact UsWe sincerely invite you to visit our company in person for an on-site tour and guidance. We look forward to collaborating with you to achieve shared growth and create a brilliant future together.
Standards for the remanufacturing of cast and forged parts for heavy equipment have been released, promoting the development of a circular economy.
Release time:
2025/11/18
Recently, China officially released the "General Technical Specifications for Remanufacturing of Cast and Forged Parts for Heavy Equipment," marking a crucial step forward in the circular economy within the high-end equipment sector. The standard was spearheaded by the National Technical Committee for Standardization of Large-Scale Cast and Forged Parts and jointly drafted by leading enterprises such as Second Heavy (Deyang) Heavy Equipment Co., Ltd. It systematically standardizes the remanufacturing processes, quality inspection procedures, and environmental protection requirements for cast and forged parts used in heavy equipment—including nuclear power pressure vessels and gas turbine rotors—thus filling a significant gap in the industry.
The standard explicitly requires remanufacturing enterprises to establish a five-level quality control system that covers aspects such as raw material traceability, laser-based online inspection during the forging process, ultrasonic testing, and hardness uniformity testing, ensuring that product performance meets or exceeds 90% of the standards for new products. At the same time, the standard stipulates that the energy consumption in the remanufacturing process must be reduced by 60% compared to manufacturing new products, material utilization rates must increase by 70%, and pollutant emissions must be cut by 80%, thereby effectively promoting resource recycling.
Addressing industry pain points, the standard innovatively proposes a “digital twin-based process optimization” approach, requiring enterprises to use simulation models to shorten the process optimization cycle by 30%. The standard also sets a target of completing intelligent upgrades for 40% of equipment by 2025. Currently, this standard has been piloted in the nuclear power and thermal power sectors, resulting in an 18% increase in the pass rate of non-destructive testing for rotor-type forgings and a 2.3-percentage-point improvement in the utilization rate of steel ingots, thereby providing technological support for the high-quality development of a circular economy.
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Zhengzhou Coal Mining Machinery Green Materials Technology Co., Ltd.
Address: No. 58, Danjiang Road, Shangjie District, Zhengzhou City
Phone:+86-371-67891855(Administrative)
+86-371-67891856(Sales)
Fax:+86-371-67891856
Email:glgs.zmj@zmj.com
Website:www.zmjgl.com
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