Custom-built for the Nanjing Yanhe Road river-crossing project, it has a cutterhead diameter of 15.03 meters, total length of 135 meters, and weight of 4,000 tonnes. It introduces a series of advanced technologies for the first time, including telescopic cutterhead swing and atmospheric-pressure cutter replacement, helping advance China's ultra-large-diameter shield tunneling technology and accelerate the upgrading of the industrial chain.