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Offshore wind turbines extending into the distance above a misty sea.

Wind

Machining a 90-tonne hub for the SG14 turbine platform

Precision machining of a large wind turbine hub, from approximately 90 tonnes as received to 77 tonnes after machining.

Challenge

The hub connects the wind turbine blades to the rotor assembly.

At approximately 6 × 6 × 5.5 metres and 90 tonnes before machining, this SG14 component required specialised equipment and extensive experience handling and machining very large wind-industry parts.

    Offshore wind turbines extending into the distance above a misty sea.

    Nordmark’s role

    Nordmark machined the SG14 wind turbine hub from approximately 90 tonnes as received to 77 tonnes after machining.

    Handling a component of this size required specialised machining capacity and extensive experience with large wind turbine components.

      Exterior view of Nordmark's production facility with the company logo on the building.

      Notable facts and numbers

      90 t
      Weight before machining
      77 t
      Weight after machining
      6 x 6 x 5.5 m
      Dimensions

      Customer value

      The machining work converted a large unfinished hub into a component ready for subsequent steps in the supply chain. For wind-industry partners, Nordmark’s experience helps bridge the gap between component design and practical, verifiable manufacturing at scale.

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