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About Us

Beijing GEARX Limited
About Us

Beijing GEARX Limited

GEARX, founded in 2001, specialized in the supply of large-sized gear products, mainly focus on the design, manufacture, sales as well as related services of girth gears, including cast steel girth gear, ductile iron girth gear and welded structural girth gear with a maximum diameter of 16 meters and the highest accuracy could reach AGMA 10 or GB6. Our manufacturing base include casting factory, heat treatment factory and machining factory, relying on the strong smelting, casting, heat treatment and machining capabilities of the manufacturing base, we can provide the service of producing 900 tons molten steel, casting 700 tons steel ingots, manufacturing 600 tons cast steel parts and 450 tons forged steel parts in one go. The products we supply is with a maximum diameter of 16 meters, a maximum height of 18 meters, and a maximum length of 40 meters. GEARX is able to provide integrated solutions and one-stop services of large-size gear products, casting products from blank to finished products for users in industries such as mining, metallurgy, building materials, shipbuilding, petroleum, forging, ceramics, water conservancy, and bridges worldwide.
Design
Design
We can do product design, pro-cess design, material design and finite element analysis of large steel castings. according to client’s requirements, we will do design scheme, process scheme, and then finish the production and quality control.
Foundry
Foundry
It is able to produce 900 tons steel melt, cast 700 tons steel ingots, and manufacture 600 tons cast steel parts.
Heat Treatment
Heat Treatment
It is able to treat castings and forgings with a maximum length of 30 meters and a maximum diameter of 17.5 meters.
Machining
Machining
It is able to machine castings and forgings with a maximum diameter of 16 meters, a maximum height of 18 meters, a maximum length of 40 meters, and a maximum weight of 200 tons, as well as the ability to machine gears with a maximum diameter of 16 meters and the highest accuracy could reach AGMA10 or GB 6.
One product is one work
Pay attention to details

One product is one work

We seeking excellence. We are motivated by the continuous improvements, so we are innovating day by day in order to offer solutions to our customers, providing our experience, creating value in long-term relationships. 
One product is one work
Mark Li
General Manager

GEARX, founded in 2001, specialized in the supply of large-sized gear products, mainly focus on the design, manufacture, sales as well as related services of girth gears, including cast steel girth gear, ductile iron girth gear and welded structural girth gear with a maximum diameter of 16 meters and the highest accuracy could reach AGMA 10 or GB6. Our manufacturing base include casting factory, heat treatment factory and machining factory, relying on the strong smelting, casting, heat treatment and machining capabilities of the manufacturing base, we can provide the service of producing 900 tons molten steel, casting 700 tons steel ingots, manufacturing 600 tons cast steel parts in one go. The products we supply is with a maximum diameter of 16 meters, a maximum height of 18 meters, and a maximum length of 40 meters. GEARX is able to provide integrated solutions and one-stop services of large-size gear products, casting products from blank to finished products for users in industries such as mining, metallurgy, building materials, shipbuilding, petroleum, forging, ceramics, water conservancy, and bridges worldwide.

Quality, price, and geographical advantages have laid a solid foundation for us to participate in global competition. GEARX has taken "meeting the quality standards of the international steel casting industry and having the price competitiveness of China's steel casting industry" as our highest goal.

GEARX can do product design, process design, material design and finite element analysis of large steel castings. According to client’s requirements, we will do design scheme, process scheme, and then finish the production and quality control.
Solidification, metal forming and heat treatment are the keys to determine the quality and performance of the products. GEARX uses the latest computer software, including CAE software to simulate the gating system, temperature field simulation system, and thermal stress simulation system, to predict the casting defects, and optimize and adjust the casting process accordingly to ensure the internal quality of products and minimize the manufacturing risks and costs.

  • Quality control of design process
  • Quality control of wooden model production process
  • Quality control of casting production process
  • Quality control of heat treatment production process
  • Quality control production process of machining and teeth cutting production process
  • Quality control of machining and teeth cutting production process
  • Quality control of teeth milling production process
  • Quality control of teeth hobbing production process
  • Quality control of teeth grinding production process

  • The maximum accuracy of girth gear can reach AGMA10 or ISO6
  • About the internal quality of the castings, the UT and MT flaw detection would reach level II of international standard (under special request, level I of standard can be provided). 
Only the High Quality Casting Steel Can
Produce Qualified Girth Gears
Impact Resistance
Breakage Resistance
Wear Resistance
Fatigue Resistance
Spalling Resistance
Plastic Flow Resistance
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