The Cutter Suction Dredger (CSD) is a high-efficiency hydraulic dredging vessel designed for excavation and sediment removal in challenging aquatic environments. Equipped with a rotating cutter head at the suction inlet, it effectively loosens and agitates compacted soil, sand, gravel, and rock. The dredged material is then transported through a pipeline system by a powerful centrifugal pump for discharge to reclamation areas or designated disposal sites. Widely used in river deepening, port maintenance, land reclamation, and water conservancy projects, the CSD offers continuous operation, high production capacity, and precise excavation. Its versatility makes it indispensable for large-scale civil and marine engineering works.