Welcome to DHDZ

Shanxi DongHuang Wind Power Flange Manufacturing Co., LTD.  Is dedicated to the Manufacture, Export, Distribution and Marketing of Flanges, Forgings, Accessories and other related elements for Renewable Energy, Wind-Mill Plant, Oil & Gas Industries, Onshore, Offshore, Refinery, Petrochemicals, Water & WWTP, Food Processing Inds, Power & Shipbuilding Industries, Automotive.

  • 1000 + of FORGINGS
  • 20000 T FORGINGS and
  • Products and Services

    We, DHDZ, produce flanges and forgings according to drawings, chemical composition requirements by open die forging, die forging. Rough machining , heat treatment and finished machining all are available . The qualified ration of heat treatment for flange, forging products reaches 97.8%. We cooperate closely with organizations of cranes, petroleum, chemical, mining, metallurgy, hydraulics, coking, trains, engineering machinery, electric power, food processing, paper, shipbuilding, transportation etc., products range from wheels, pulleys, sprockets, gears, ring gears, ring parts, cylinders, shafts, cylinders, blocks, modules, to bearing support seats, etc. The products are reliable in materials and stable in quality, and have been exported to more than 40 countries Worldwide.

Industries We Serve


    Wind energy is a clean and pollution-free renewable energy source. Wind power refers to the conversion of wind kinetic energy into electrical energy. DHDZ offers a variety of large diameter wind power flanges. It is a structural member that connects each section of the wind tower or between the tower and the hub. The material used for wind power flange is low-alloy high-strength steel Q345E/S355NL. The working environment has a minimum temperature of -40 °C and can withstand up to 12 winds. The heat treatment requires normalizing. The normalizing process improves the comprehensive mechanical properties of the wind power flange by refining the grains, uniformizing the structure, improving the structure defects.


    The oil and gas industies demand reliable flanges for Upstream, Midstream and Downstream processes. In the construction of these large-scale projects, the working conditions are diverse and complex, involving a large number of media and materials. There are many special requirements for the quality of the flanges and other fittings. DHDZ offers flanges meeting the requirements for resistance to sulfide stress cracking (SSC) in sour refinery process enviroments, i.e., enviroments that contain wet hydrogen sulfide (H₂S).


    Drive Shafts are mainly used in tank trucks, fuel trucks, sprinklers, wagon, road wreckers, aerial work vehicles, garbage trucks, etc. Main Spindles are mainly used in lather machines. DHDZ offers a wide range of forged shafts for Railway components, Automotive, Lathe Machine.


    DHDZ offers customized forgings, for example , 2Cr13 stator, that help our Clients in the processes of production line for potato, corn starch, sugar products and food processing to produce stable and wear-resistant machinery and equipment.

Shanxi DongHuang Wind Power Flange Manufacturing Co., LTD.

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