Recently, Nantong Rainbow Offshore & Engineering Equipment (ROC), a wholly-owned subsidiary of Jiangsu Rainbow Heavy Industries, has successfully delivered a project consisting of 1 floating pontoon, 3 jackets and 1 linkspan built for TAMS Group in Australia. The project was shipped to Australia via semi – submersible vessel and heavy – lift vessel.
The smooth delivery of this project is a milestone in the company’s international strategic layout and its deep – rooted development in the Australian market. It marks that the company’s high – end marine engineering equipment construction strength has once again been highly recognized by overseas customers.
The total weight of the project is approximately 13,000 tons, with the highest material grade reaching 1100 Mpa, and nearly 2,500 tons of 460C – grade materials. The project was constructed in accordance with DNV and AS standards and inspected in line with 100% NDT requirements. Since undertaking the project last year, the project team of ROC has gone all out. During the construction process, the project team overcame numerous challenges, such as welding of high – strength – grade materials, closure tests of pile guides, underwater cleaning of marine organisms, large – area anti – slip sand construction on deck surfaces, and high – precision hoisting tests of dolphins. ROC gave full play to its technical advantages, continuously explored and innovated. New processes like using modular vehicles for ship – building berth installation were adopted, which significantly shortened the construction period, reduced operation risks, ensured the smooth progress of the project as planned.
Eventually, the project was delivered with high quality nearly 2 months ahead of schedule, and the ultrasonic testing (UT) qualification rate of high – strength material welding reached 99.86%.This project will be applied at KMSB Wharf, used for berthing large – scale Floating Production Storage and Offloading vessels (FPSOs), ro – ro car carriers and other large ships. It will help improve the wharf handling efficiency and promote regional economic prosperity.
The valuable technical experience accumulated from this project will be applied to subsequent projects. ROC will also continue to focus on high – end marine engineering equipment and provide better marine engineering equipment solutions for global customers.