Recently, CSSC Power (Group) Corporation Ltd. (CPGC), a subsidiary of China State Shipbuilding Corporation (CSSC), has successfully obtained both design approval and type approval from China Classification Society (CCS) for its 8ML450DF engine.
As China’s first domestically developed medium-speed dual-fuel engine with the largest cylinder bore under its own brand, the 8ML450DF has now officially secured the green pass to access the global shipping market.
This milestone achievement not only fills a technological gap in China’s large-bore dual-fuel medium-speed engine sector but also marks a major breakthrough in the nation’s drive toward self-reliance and green transformation in core marine propulsion equipment. It offers a “Chinese solution” for low-carbon development in the global shipping industry.
During the development of the 8ML450DF medium-speed dual-fuel engine, CSSC Marine Power Zhenjiang Co., Ltd (CMP) and China Shipbuilding Power Engineering Institute Co., Ltd. (CSPI), both subsidiaries of CPGC, successively overcame key component matching tests and optimizations, such as the breakthrough of fuel mode load limits, stability control of dual-fuel systems, and independent brand speed governors, providing strong support for the successful development of the main engine.
The 8ML450DF medium-speed dual-fuel engine is developed with completely independent intellectual property rights. The total power exceeds 9200kW, the average effective pressure is 2.4MPa, and the rated speed is 600r/min. It can be widely adapted to high-end ships such as large engineering vessels, luxury cruise ships, and offshore engineering platforms. At the same time, it can be applied to land-based power station units in low-carbon and zero-carbon industrial parks, and has extremely strong adaptability to various scenarios.