Cutter Suction Dredgers (CSD's) or Wheel Suction Dredgers (WSD's). The CSD's are available in a standard range with discharge
diameters from 350mm to 650mm. In addition to the standard sizes GMI also has
custom-made vessels in any required size or format. Some examples are: special
mining applications, self-propelled, rock cutting, etc.
A generally smooth bottom can be achieved, and modern instrumentation allows
profiles and side slopes to be dredged accurately. Some of the larger cutter
suction dredgers are self-propelled to allow easy movement from site to site.