[Ten years of development of chemical equipment] 927-2023 R20000-720, the world’s largest tower crane
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Chemical equipment has developed greatly in the past ten years. Praise for China's prosperity and strength in the prosperous age. It will be more lively and exciting with everyone's participation. Everyone is welcome to participate in more forum exchanges and discussions. Happy May Day! Safe and safe in May * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * The world's largest tower crane, the R20000-720, was jointly developed by Zoomlion and CCCC Second Aviation Engineering Bureau. It has a rated lifting moment of 20,000 tons-meters, a maximum lifting capacity of 720 tons, and a maximum lifting height of 400 meters, which is equivalent to lifting 500 cars to a height of 130 floors at a time. This product integrates 158 innovative scientific research results and 305 invention patents, including more than 60 core key technologies and 12 world-first technologies. It has reached the top of the world's tower cranes and is a veritable important weapon of a great power. On April 20, 2023, the world's largest tower crane, which incorporates 158 innovative scientific research results and 305 invention patents, rolled off the assembly line at Zoomlion's Changde Tower Crane Smart Factory. This is another self-breakthrough for Zoomlion and another historic breakthrough in the development of my country's advanced manufacturing. Its emergence will provide more advanced solutions for my country's industrial heavy-duty and construction industrialization, and further enhance the influence and competitiveness of Chinese brands in the global tower crane field.
Tower cranes are mainly used in world-class bridge projects such as the Anhui Chaoma Yangtze River Highway and Railway Bridge, the world's largest span three-tower cable-stayed bridge, and the world's largest span double-decker suspension bridge - Guangdong Shiziyang Channel, which CCCC Second Harbor Engineering Co., Ltd. participated in the construction of. This tower crane has the characteristics of super performance, advanced technology and numerous patents. It is an important breakthrough in the history of tower crane manufacturing. The tower crane has a rated lifting moment of 20,000 tons-meters, a maximum lifting capacity of 720 tons, and a maximum lifting height of 400 meters, which is equivalent to being able to lift 500 cars to a height of 130 floors at a time. The tower crane incorporates 158 innovative scientific research results and 305 invention patents, including more than 60 core key technologies and 12 world firsts. It has applied for 78 patents in the core key technologies of super-large tower cranes. It is a well-deserved important weapon of a major country. The tower crane has a high load-bearing and lightweight structural configuration with uniform stress streamlines. The most advanced technologies include mobile counterweights, panoramic management and intelligent control of safety and collaborative construction, and the first application of high-power permanent magnet synchronous drive in super-large tower cranes, making the equipment safer, smarter, more efficient, and greener.
The total length of the tower crane's welds reaches 490 kilometers, which is equivalent to the length of 64 Badaling Great Walls. The maximum weight of a single component is 92.8 tons. It took only 8 months from design to offline, setting a miracle in the construction speed of super-large tower crane equipment. After rolling off the production line, it will be used in the world's largest span three-tower steel truss cable-stayed bridge - Chaoma Railway Ma'anshan Yangtze River Highway and Railway Bridge construction project. It fully meets the hoisting of the bridge tower steel structure, speeds up project construction, and shortens the project duration. The two main spans of the Ma'anshan Yangtze River Highway and Railway Bridge are both 1,120 meters. The tower columns are steel-concrete structures. The middle tower is 345 meters high, making it the tallest bridge tower in the world. The south tower is 306 meters high and the north tower is 308 meters high. Wang Xuejin, the person in charge of the Chaoma Bridge project of CCCC Second Harbor Engineering Co., Ltd. said: “The south main tower of the Chaoma Bridge we are building adopts a steel-concrete composite structure cable tower. The upper steel tower is hoisted in large sections. The maximum hoisting weight exceeds 400 tons, the maximum installation height is 302 meters, and the maximum hoisting width is required to exceed 32 meters. ”The new tower crane applies the industry's first mobile counterweight technology, which allows the counterweight to move accurately as the lifting moment changes, achieving a substantial improvement of more than 60% in hoisting performance.