A cutter suction dredger is a type of marine vessel designed for dredging, which involves removing sediment and debris from the bottom of water bodies. It features a rotating cutter head that breaks up the material, allowing it to be sucked up through a pipe and transported to a designated location. This equipment is commonly used in construction, land reclamation, and maintaining navigable waterways. These dredgers are equipped with powerful pumps that can handle various types of materials, including sand, silt, and clay. They are often used in projects related to harbor development, river deepening, and coastal protection, making them essential for maintaining and improving water infrastructure.