As China's largest engine crankshaft manufacturer, Kingrail Parts provides engine crankshafts of various sizes and specifications for a wide range of vessels, including tugboats, ferries, cruise ships, and container ships.
Our marine crankshafts are certified by classification societies in 10 countries, including CCS, ABS, KR, NKK, BV, LR, RINA, GL, DNV, and RS.
Our crankshafts are suitable for marine direct propulsion and auxiliary electric systems with cylinder bores ranging from 150mm to 500mm and power outputs from 500kW to over 7000kW. We can also customize marine crankshafts to meet specific customer specifications and requirements.




