As "Ne Zha 2" hits theaters with great fanfare, the immortal artifact "Wind Fire Wheels" from the film has found a technological "equivalent" at the Dalian Equipment Manufacturing Base of Sinohydro Bureau 4 — on February 28, the friction cylinder for the Dalian Zhuanghe V Offshore Wind Power Project undertaken by Sinohydro Bureau 4 was successfully shipped. This is the largest-diameter friction cylinder currently produced in Liaoning Province and has attracted attention from many mainstream media outlets.

The friction cylinder has a diameter of 24 meters, a height of 8.3 meters, and weighs 350 tons. It is a foundational structural component for offshore wind turbine units, serving to provide auxiliary support for offshore wind monopile foundations. Owing to its appearance, it has been affectionately dubbed the "steel Wind Fire Wheel." The overall dimensions of the friction cylinder demand high precision; with such a large diameter, it cannot be rolled as a single piece, and it presents difficulties such as thin cylinder steel plates that are prone to deformation: the cylinder diameter reaches 24 meters, the cylinder wall uses 25 mm thick steel plates, and self-weight deformation is significant; all welds in the cylinder structure are full-penetration Class I welds; the top beam system requires high precision in fit-up welding with a large welding workload and a cramped working space; regarding transportation, the cylinder dimensions far exceed conventional road limits, and the thin-walled structure is prone to deformation during transport, requiring dedicated support tooling for reinforcement.

During construction, the project team made meticulous organizational arrangements and scientific planning for the difficult issues. First, they broke down the drawings, established a 3D model, and determined the cylinder assembly plan; by unfolding the 3D model to derive cutting drawings and conducting force analysis of the transport tooling, they effectively guaranteed the manufacturing precision of the cylinder from the source and optimized the structure of the transport tooling. Second, they maintained close communication and collaboration with the transport unit and government departments, carried out road surveys in advance, and formulated a practical and feasible transport plan through methods such as transport process simulation drills, effectively responding to various emergencies that could arise during transport. Ultimately, relying on rich installation and construction experience, they successfully completed the friction cylinder supply task.

"We have a total of 2 of these 'steel Wind Fire Wheels,' all of which have been fully produced and will soon arrive at the Zhuanghe construction site. This marks that Sinohydro Bureau 4 now possesses the full set of offshore wind steel structure production and manufacturing capabilities covering wind turbine towers, steel pipe piles, jackets, stators and rotors, flanges, floating bodies, offshore photovoltaics, friction cylinders, and more, taking a key step forward in the development of the steel structure construction field," a person in charge introduced.