Large Mouth Flange

Five core features

1. Super large-scale size

The weight of a single piece is 5 tons - 120 tons, the diameter range is Φ3,500mm - Φ12,000mm, covering the global mainstream 8MW-18MW wind turbine demand.

2. Excellent anti-corrosion performance

The maintenance-free cycle of onshore wind farms is up to 18 years, and the salt spray test is ≥1,600 hours. Whether it is offshore or on land, it is a representative of high performance

3. Millimeter-level precision processing can extend the life of the structure by more than 30%. The bolt hole position error is ≤0.5 mm, and the tower section is seamlessly connected.

4. Product quality assurance 100% size laser scanning re-inspection to eliminate the risk of cracking after installation, and the maximum offshore wind power use is 25 years.

5. Ultimate bearing capacity

The tensile strength of the large-mouth flange is ≥10,000 kN, and the bending strength is ≥8,000 kN·m, which can support the sway load of a 20-story tower.

Application scenarios

Scenario 1: 8MW~18MW super-large onshore/offshore wind turbines, the Large Mouth Flange is installed at the bottom of the tower, and a single flange bears the weight equivalent to 1,200 cars. Comparable non-standard flanges can reduce power generation losses: ≤0.5%

Scenario 2: The structure connecting the floating structure and the tower, the number of fatigue cycles >1×10⁷ times, is 1.5 times higher than the design life of general product wind turbines

Scenario 3: In heavy bridge projects, large-mouth flanges and cross-sea bridge pier connectors

The product can be used at an operating temperature of -40℃~+300℃, and can withstand a maximum pressure of PN40 (4.0MPa).

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