Cutter Suction dredger is widely use for mining,dredging,desilting and reclamation etc.

Cutter Suction Dredger (CSD) is equipped with a rotating cutter head cutting hard soil into fragments. The cutter head is a rotating mechanical device and mounted in front of the suction head and rotating along the axis of the suction pipe. The cut soil is then sucked in by dredge pumps. The dredged material will be pumped ashore by a floating pipeline or loaded by hopper barge.