A cutter-suction dredger is used to dredge calcareous or other hard or compact sea bottom material that cannot be simply sucked up. Most are barges without engines, but a small number are self-propelled.
These vessels are used to dredge channels or during the construction of port facilities.
The vessel is held in place by two spud poles at the stern and two anchors placed far to port and starboard of the bow. As the bow swings between the anchors, the stern rotates around first one and then the other spud pole, which are alternately raised and lowered.
The dredge head is fitted with a rotary cutting device which breaks up the bottom material before it is sucked up. The spoil/water mixture is usually pumped ashore or into barges via a floating pipeline.
Many factors must be taken into account when choosing. These include torque and cutter power, suction pump power, presence or absence of propulsion and thrusters, length of the cutter arm and maximum working depth.
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Workboat : cutter-suction dredger CSD 500 Damen
24m 
78' 9"ft
In January a new built Cutter Sucction Dredger 500 ‘Akash 1’ was handed over to her owners Akash...
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Special vessel : cutter-suction dredger IHC Beaver® 65 DDSP Merwede Shipyard
The IHC Beaver® 65 DDSP is reliable, fuel-efficient, has low maintenance costs and high productivity levels at all dredging depths. This robust dredger...
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Special vessel : cutter-suction dredger ZPMC
One of the ZPMC's main offshore products. The dredger is mainly used in dredging projects...
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Special vessel : cutter-suction dredger SSB 933 P S WERFTEN
DATA SHEET Type: Cutter Suction Dredger SSB 933 Built by: Volkswerft...
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Workboat : cutter-suction dredger 5012 LP VERSI-DREDGE® Innovative Material Systems
12,9m 42' 4"ft
The Model 5012 LP Versi-Dredge is ideal for dredging in canals, lakes, and marinas where maneuverability is confined areas is an issue. Like all Versi-Dredge systems the Starwheel Drive system allows the dredge to be completely...
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Special vessel : cutter-suction dredger 870JD Ellicott Dredges
The Ellicott® Jet Dragon® uses a Hydro-Jet assist to ensure consistent production at maximum digging...
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Special vessel : cutter-suction dredger SGT 350 C ITALDRAGHE
is specialized in manufacturing cutter suction and backflow...
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Workboat : cutter-suction dredger MUD CAT™ 727 165HP LIQUID WASTE TECHNOLOGY
9,3m 30' 6"ft
2009 Model Mud Cat™ 727 165HP Heavy Built Contractor Duty Dredge Flexible Pump/Engine Combinations Powerful,...
