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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.
Top Drive Drilling Box Body
Steel grade: G18NiMoCr3-6
Weight: 1100–4200 kg
Tensile strength: ≥795 MPa
Yield strength: ≥695 MPa
Impact energy: KV8(-20℃) ≥ 46 J KV8(-45℃) ≥ 30 J
Application: In drilling top-drive systems, the substructure serves both as a load-bearing framework and as an integrated functional platform, directly affecting the top-drive’s operational efficiency, safety, and service life.
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Keywords： Top Drive Drilling Box Body
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Product Description
Steel grade: G18NiMoCr3-6
Weight: 1100–4200 kg
Tensile strength: ≥795 MPa
Yield strength: ≥695 MPa
Impact energy: KV8(-20℃) ≥ 46 J KV8(-45℃) ≥ 30 J
Application: In drilling top-drive systems, the substructure serves both as a load-bearing framework and as an integrated functional platform, directly affecting the top-drive’s operational efficiency, safety, and service life.
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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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