On the morning of November 11, 2026, the first handful of soil was excavated from the construction site in Yangjian Town, Xishan District. For Delijia, there are always important signs in November: rooted in Xishan in 2018, successfully listed on the Shanghai Stock Exchange in November last year, and on the same day this year, a large-scale onshore and offshore wind power gearbox R&D and manufacturing project with a total investment of 5 billion yuan began construction. Four consecutive investments, growing at the same frequency as Xishan.

Eight years and four consecutive investments

Delijia is mainly engaged in the research and production of wind power gearboxes and supporting components. It has long been deeply involved in the forward design of wind turbine transmission chains, and has overcome core technologies such as structural development, multi condition simulation optimization, precision manufacturing, and full condition testing, forming a complete independent technical system. Accumulated 84 patents, 28 inventions, and 56 utility models. We have the ability to research and manufacture a full range of wind power main gearboxes from 1.5MW to 26MW, and have entered the qualified supplier system of mainstream whole machine manufacturers such as Goldwind Technology, Yuanjing Energy, Mingyang Intelligent, Sany Heavy Energy, Yunda Co., Ltd., Dongfang Electric, and Shanghai Electric. We have won honors such as Yuanjing Energy, Sany Heavy Energy Annual Excellent Supplier, and Goldwind Technology Annual Best Supplier. The total investment of the first, second, and third phases of the project was 5.5 billion yuan, and with the addition of the fourth phase, the cumulative total investment in Xishan has exceeded 10 billion yuan. The fourth phase will be located in Yangjian Town, in collaboration with the headquarters of the Economic Development Zone and the first phase of research and development manufacturing, to efficiently connect from signing to construction.

Build a strong heart for the fan

The gearbox is the heart of the fan, replacing the low speed of the wind turbine with the high speed of the generator. The larger the unit, the greater the torque, and the material, design, processing, and assembly thresholds are raised synchronously; Offshore units also have to withstand salt spray and inconvenient maintenance at sea, and reliability determines the full lifecycle cost. The unit continues to grow in size, and the transmission chain must be upgraded synchronously with the entire machine. This project aims to develop and manufacture large-scale onshore and offshore wind power gearboxes with a capacity of over 10 megawatts. Leveraging mature R&D, manufacturing, and experimental verification capabilities in the medium to high power field, it focuses on tackling key links in the transmission of high-power wind power on land and sea, breaking through to the ultra large megawatt, high-speed heavy-duty, and high reliability race track, filling the gap in production capacity of high-end large megawatt transmission equipment, and consolidating the independent supply capability of core components of wind turbines.

One project leads to a strong chain

Leading projects are not just about investing in numbers. Yangjian Town relies on the complete equipment industrial park to gather supporting capabilities such as precision machining, heat treatment, and testing. The contiguous land and road network facilitate the transportation of large items. Taking Delijia as the chain leader, connecting gear steel and large castings and forgings upwards, and connecting spare parts warehousing, operation and maintenance, and remanufacturing downwards, turning the supply chain list into an investment list; Enterprises are also promoting international certification and following their complete machine partners to go global. After the completion of the fourth phase project, the enterprise is expected to achieve an annual sales revenue of over 10 billion yuan, which will further strengthen the core links of the new energy high-end equipment industry chain in Xishan District, enhance the technological leadership advantages of the regional wind power equipment industry, help build a first-class wind power equipment characteristic industry cluster in China, and better serve the national dual carbon strategy. The wind blows from Xishan towards the farther sea.Editor/Yang Meiling