Tower Flange: This essential component serves as the crucial connector for various sections of the wind turbine tower. Boasting a considerable diameter and substantial weight, it is meticulously engineered to endure the tower's load and deliver exceptional anti-fatigue performance, ensuring long-lasting stability.

Hub Flange: The critical link between the hub and the tower's pinnacle, this flange is expertly crafted to withstand the potent thrust and bending moments exerted by the wind turbine rotor. With rigorous demands for strength and rigidity, it ensures unwavering support and stability.

Blade Flange: This precision-engineered flange seamlessly connects the blade's root to the hub. Despite its compact dimensions, it demands impeccable precision to guarantee the blade's optimal installation angle, promoting the wind turbine's efficient and effective operation.

Tower Foundation Flange: Serving as the steadfast connection between the tower foundation and barrel, this flange bears the wind turbine's weight and the formidable forces of the wind. With superior seismic resistance and anti-corrosion features, it is designed for enduring resilience.

Classification by Installation Position: Flanges are categorized into internal and external types. The internal flange is strategically located on both sides of the fan's main shaft, adjacent to the generator set. In contrast, the external flange is positioned at the shaft's extremities, distant from the generator set, offering versatile installation options.
Features
High Strength: Designed to masterfully withstand the formidable forces of wind and rotational torque, this flange exhibits remarkable strength and stiffness, ensuring an unparalleled level of safety and reliability.
Robust Corrosion Resistance: Ideal for marine or storm-prone locales, this flange is fortified to bravely resist the harsh erosions from seawater and adverse climatic conditions, ensuring durability and longevity.
Secure Connection: Utilizing robust bolts for fastening, this flange ensures an unyielding connection between the fan impeller and the main shaft. It excels in bearing substantial torque and vibrations, providing steadfast reliability.
Excellent Lubricity: To maintain peak performance under high-speed rotations and demanding environments, regular lubrication and maintenance are vital. This reduces friction and wear, ensuring a seamless operational state.
Easy Detachability: Engineered for effortless maintenance and component replacement, this flange features a detachable structure, allowing quick disassembly and reassembly to streamline operations.
Superior Anti-Fatigue Performance: As wind turbine generator sets operate relentlessly over prolonged periods, this flange's outstanding anti-fatigue properties enable it to withstand consistently fluctuating loads with remarkable endurance.
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Pressure Rating |
Light-duty Flange |
Corresponding to Code 61 in ISO 6162-1 and SAE J518 standards, also known as the 3000psi flange. It is suitable for hydraulic systems with relatively low pressure and can generally withstand a pressure range from 3.5MPa (35bar) to 21MPa (210bar). |
Heavy-duty Flange |
: Corresponding to Code 62 in ISO 6162-2 and SAE J518 standards, also known as the 6000psi flange. It is used in occasions with high pressure and can withstand a pressure range from 21MPa (210bar) to 42MPa (420bar) or even higher. |
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Nominal Diameter |
DN13 to DN127 |
The nominal diameter range of hydraulic pipe flanges is usually between DN13 and DN127. For example, DN13 corresponds to 1/2 inch, DN25 corresponds to 1 inch, DN50 corresponds to 2 inches, and so on. |
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Dimension Specification |
Outer Diameter of the Flange |
It increases with the increase of the nominal diameter. For example, the outer diameter of a light-duty flange with a nominal diameter of DN10 may be 50mm, and the outer diameter of a light-duty flange with a nominal diameter of DN200 may be 340mm. |
Bolt Hole Pitch |
The bolt hole pitch varies for flanges with different nominal diameters and pressure ratings. For instance, the bolt hole pitch of a DN10 flange may be 60mm, and that of a DN100 flange may be 180mm. |
Bolt Diameter and Quantity |
The bolt diameters generally include M14, M18, M22, etc., and the number of bolts ranges from 4 to 20. For example, a DN25 flange may use M14 bolts, with a quantity of 4; a DN500 flange may use M26 bolts, with a quantity of 20. |
Flange Thickness |
The thickness of a DN10 flange may be 14mm, and the thickness of a DN300 flange may reach 28mm or 32mm.
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Nestled in the heart of Dashagou Village, Jiangcun Township, Dingxiang County, Xinzhou, Dingxiang Jinyu Forging Co., Ltd. proudly embodies the spirit of the 'hometown of Chinese forging'. With a robust registered capital of 5 million yuan, our strategic location offers unparalleled access, being just 100 kilometers from the provincial capital Taiyuan, and blessed with seamless road and railway connectivity. Our region is rich in essential resources like coal, electricity, and iron, powering our expertise as a premier manufacturer of forged flanges and pressure vessel forgings. We boast a comprehensive suite of services, including design integration, raw material procurement, cutting, forging, heat treatment, machining, mechanical testing, non-destructive testing, mechanical typing, painting, packaging, and shipping. Our annual production prowess exceeds 10,000 tons, with diverse specifications ranging from DN15 to DN6000mm. Each finished product unit can weigh up to 20 tons, with pressures from 150 to 2500 pounds, encompassing national, American, British, German, and Japanese standards, as well as bespoke non-standard flanges and forgings.
Our production process is fueled by top-tier materials, including premium high-quality carbon structural steel, low-alloy high-strength steel, heat-resistant steel, and an array of stainless steel varieties (such as carbon body, austenitic, martensitic, precipitation hardening, and duplex stainless steel).
Sprawling over an expansive 10,000 square meters, our company is a thriving hub of innovation and efficiency. We employ a dedicated team of 105 fixed employees, including 8 skilled management personnel with education levels of high school or above. The organizational chart, detailed in the attached table, highlights our structured approach. Our facilities include a cutting-edge cutting workshop, forging workshop, machining workshop, and packaging workshop, complemented by well-organized raw material, semi-finished product, and finished product warehouses.




Q1: Can I obtain samples?
Absolutely, yes. We can provide samples for your evaluation.
Q2: Can I use my own logo or design on the product?
Certainly, we offer OEM/ODM services tailored to your needs. Your unique logo and design can be expertly crafted onto the product.
Q3: Do you have a factory?
Indeed, we operate a state-of-the-art factory in Shanxi. We warmly invite you to visit our company and factory to experience our professional manufacturing process firsthand. We provide comprehensive OEM/ODM services to our valued customers.
Q4: What is the production capacity of your factory?
Our factory boasts an impressive production capacity, efficiently reaching up to 2000 tons per month.
Q5: When will the shipment be made?
With readiness as our hallmark, all our products are in stock and prepared for dispatch within 5 days. We promise swift delivery of 2000 pieces within just 7 days.