Offshore

Dajin Starts DNV-Certified Offshore Wind Jacket Prototype

Dajin Heavy Industry has started building a DNV-certified three-legged offshore wind jacket prototype for 15 MW turbines and the North Sea market.

Image source: DAJIN via LinkedIn

24, May 2026
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Dajin Heavy Industry has begun manufacturing what it described as China’s first DNV-certified three-legged offshore wind jacket developed to meet European standards for the North Sea market.

The company has already supplied monopile foundations and other offshore wind components to European projects in Germany, Denmark, Poland and the UK.

Production of the mock-up jacket started this month at Dajin Heavy Industry’s Tangshan facility, which entered operation in late 2025. The structure is designed for 15 MW offshore wind turbines.

The jacket will be built with DNV NV F36 steel grade, which is specified for impact resistance down to minus 60 degrees Celsius. Manufacturing will follow DNV-ST-0126, DNV-OS-B101, DNV-OS-C401 and NORSOK M501 (2022).

Dajin Heavy Industry said final assembly and acceptance are planned for completion in 2026.

Tags: Dajin Heavy Industry, DNV, jacket foundation, North Sea, offshore wind

Editorial Note:
This article was prepared with the assistance of AI tools to enhance clarity and efficiency.
All information has been reviewed and verified by the HMT News editor.

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