The large CSD400 16inch ocean gold dredge vessel is positioned on spuds and anchor winches to ensure the vessel is firmly anchored during dredging. The cutter ladder is lowered in the seabed. By pulling on the side wires, the cutter head is moved sideways, swinging around the main spud. By using winches and anchors, the dredger swings sideways and the cutter head cuts and removes the soil.
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