Cutter Suction Dredgers

Cutter Suction Dredger is a vessel, which uses a rotating cutter head and a suction inlet for loosen and suction of material from the seabed. Cutter Suction Dredgers could be stationary or self-propelled depending on the client requirements and design.

A cutter-suction dredger's suction tube has a cutting mechanism at the suction inlet. The suction inlet located underneeth the cutter head works as a suction mouth, which is connected by a suction tube directly to the a wear-resistant centrifugal pump. The vacuum force that is created by the pump works to suck the material that is loosened by the cutter head.. The Cutter head is attached to a ladder, which is moved by steel cables and winches to move up and down.

A cutter suction dredger has generally two spud poles. Those poles are used to fix the position of the dredger while operation. Some Cutter Suction Dredgers has one spud pole that is stationary only moving up and down along with a second spud pole, which is movable lengthwise along the vessel or pontoon. Moving the spud carriage causes the cutter suction dredger to move, which is called stepping. The cutter suction dredger discharges the dredged material directly to shore via a floating pipeline.

Cutter-suction dredgers are most often used in such areas that consists hard surface materials like gravel or rock, where a standard suction dredger would be ineffective.

Quality Cutter Suction Dredgers made in Turkey by Gozuyilmaz Ltd. were explained in detail on the left hand menu.