en.Wedoany.com Reported - On July 3, at the core area of Phase I of the Zhejiang (East China) Deep-Sea Offshore Wind Power Mother Port project, the 3800t-107m double-main-girder gantry crane, boasting the world's largest lifting capacity, highest overall height, and highest lifting height, successfully completed its overall lift. This marks the official transition of Phase I construction from main structure work to the new stage of equipment installation and commissioning.
It is reported that this entirely orange "sky-scraping giant" stands on the coast of Dongtou, Wenzhou, and has become the most recognizable landmark of the Zhejiang (East China) Deep-Sea Offshore Wind Power Mother Port. The crane has an overall height of 166.5 meters, a maximum lifting height of 130 meters, and a rated lifting capacity of 3,800 tons, equivalent to the weight of approximately 760 adult African elephants.
The equipment features an upper and lower dual-trolley system, with a single trolley capable of lifting up to 1,900 tons. It supports various lifting combinations, including single-hook independent lifting and dual-hook or triple-hook coordinated lifting, enabling precise adaptation to complex construction scenarios such as large-scale steel structure alignment and transport. This effectively addresses common industry challenges of low efficiency and high precision requirements in lifting ultra-large offshore components.
According to reports, this gantry crane is a core heavy asset in Zhejiang Province's layout of the deep-sea offshore wind power industry chain. Once operational, it will cover the lifting and transport of heavy components such as offshore wind turbines, marine platforms, and large modules, laying a solid hardware foundation for Zhejiang to cultivate world-leading integrated manufacturing capabilities for ultra-large offshore components.
Located in a coastal area, the project faces challenges from strong winds, variable weather, and intensive high-altitude operations. The main girder weighs 2,010 tons and has a rail span of 107 meters. As the highest-risk procedure in the entire project, the overall gantry lift was executed by the project team using four core technologies: hydraulic synchronous lifting, 3D laser measurement and control, cable wind resistance, and precise foundation rail adjustment. With real-time monitoring by dedicated personnel and multi-point synchronized control, the gantry lift was completed smoothly.
