IRAETA Delivered the UHV Tower Flange for State Grid Corporation of China


Recently, IRAETA has delivered a batch of UHV pipe tower flanges as scheduled under tight deadlines and heavy tasks. This batch of products will be used in the test of the State Grid's "Nanchang-Changsha" 1000kV UHV AC transmission and transformation project. The sample tower involves a total of 9 tower types.

The "Nanchang-Changsha" project is the first UHV AC line of the State Grid during the 14th Five-Year Plan. The project was approved by the National Development and Reform Commission in December 2020. The line uses a number of new designs and materials. In order to verify the feasibility and guarantee the project In the follow-up construction progress, relevant units commissioned IRAETA to manufacture the flange.

IRAETA UHV Tower Flange

At present, the world's highest transmission tower is located in Xihoumen, Zhoushan, China, where two cross-sea towers are 380 meters high, more than 50 meters higher than the Eiffel Tower. Each tower weighs more than 7000 tons, and the largest steel tube diameter is 2.3 meters, and the tower flange is provided by IRAETA.

Xihoumen UHV Tower

This year, IRAETA has further upgraded its equipment on the basis of its original production capacity, adding a 10t electro-hydraulic hammer, a 3m heavy-duty ring rolling machine, and a new heat treatment production line, which will provide a more favorable guarantee for the construction of the State Grid.


IRAETA is a manufacturing concern that specializes mainly in a diversified range of products within the forgings industry. Our main products include discs, rings, hollows and special-shaped forgings; grinding balls, rods and liners, mainly used in fields such as wind power, nuclear power, UHV, petrochemical, offshore engineering, machinery manufacturing, mining and other fields.

IRAETA now has 1 sales company, 5 business divisions, 7 management centers and 1 overseas factory, covering an area of 350,000 m2 and having over 1,400 employees. For nearly half a century, IRAETA has always been steadfastly devoted to the forging industry. From offshore wind turbines on the Atlantic coast to the oil fields deep in the deserts of the Middle East, to mines in the lofty mountains of Peru, our products have made their mark. Adhering to the values of “honesty, humility, perseverance and work”, IRAETA is committed to creating sustainable value for global customers through high-quality products.


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