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It is reported that the No. 2 polypropylene tower of Tianjin Petrochemical’s Nangang million-ton ethylene plant has a diameter of 8.2 meters and a height of 106 meters. After being equipped by Sinopec Fourth Construction Company, work was completed on labor protection measures, pipelines attached to the tower, electrical instruments, and insulation; the total lifting weight reached 1,800 tons. It is the tallest and heaviest vertical equipment in the entire project. The tower was designed by Sinopec Engineering Construction Company, manufactured by Ningbo Tianyi, transported and lifted by Sinopec Shipping Company, and installed on site by Sinopec Fourth Construction Company. Sinopec Shipping Company utilized a 4,000-ton XGC8800 crawler crane as the main lifting device and a 1,000-ton crawler crane for assisting with the lifting, successfully completing the lifting operation. On June 1, Tower 2# of propylene was loaded onto a ship at Xiangshan Xi Ze Wharf, and after traveling 792 nautical miles, it arrived at the General Purpose Wharf in Tianjin Nangang Industrial Zone on June 6; it was successfully delivered to its destination on June 9. For this lifting operation, XGC88000 4000-ton crawler cranes and M21000 1000-ton crawler cranes were used, with the item being placed in position using a single-crane lifting method. Among them, Sinopec Qiyun Company owns a 4,000-ton class crawler crane, which is a major piece of equipment embodying Chinese technology, Chinese manufacturing, and Chinese engineering capabilities. It has been used for nearly 20 large-scale projects both within and outside Yantai, lifting a total weight of over 100,000 tons; it was hailed by CCTV as a \"**weighting device\". A joint inspection was carried out prior to this first lifting operation to identify risks and potential hazards; safety and technical instructions were provided to all personnel involved in the operation, the technical challenges associated with lifting were addressed, and the key points related to safety risks were controlled, all in order to ensure that the entire lifting process proceeded safely and orderly.