Cutter Suction Dredger

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Dredging Vessels

Sediment removal by breaking up hard soils with a rotating cutter head

Dredging depth: up to 18 meters

The Cutter Suction Dredger is a widely used vessel in dredging projects. Its operation works by using a rotating cutter head to loosen the soil at the riverbed or seabed, turning it into a slurry mixed with water. This slurry is then sucked into the pump through the suction pipe and pumped out through the discharge pipe to the designated disposal area, completing the dredging, transport, and discharge process in one integrated operation.

Applications

Coastal Dredging
Offshore Channel Widening
Inland River Dredging
Reservoir Dredging
Tailings Pond Dredging
Dock Dredging
Inland Sand Mining

Specifications

Model	ZHD-CSD-800	ZHD-CSD-700	ZHD-CSD-650	ZHD-CSD-550	ZHD-CSD-500	ZHD-CSD-450	ZHD-CSD-400	ZHD-CSD-300	ZHD-CSD-250	ZHD-CSD-200
Slurry capacity	8000m³/h	7000m³/h	6000m³/h	5000m³/h	3500m³/h	3000m³/h	2200m³/h	1200m³/h	800m³/h	500m³/h
Slurry concentration	15-20%	15-20%	15-20%	15-20%	15-20%	15-20%	15-20%	15-20%	15-20%	15-20%
Length overall (ladder raised)	55m	52m	48m	42m	40m	37m	36m	29m	26m	22m
Breadth	10m	9.3m	9.03m	8.8m	7.5m	7.2m	6.8m	6m	5m	4.8m
Height	3m	2.8m	2.75m	2.75m	2.2m	2.0m	1.8m	1.5m	1.26m	1.26m
Dredging depth	18m	18m	18m	14m	14m	14m	14m	12m	12m	10m
Discharge distance	1500m	1500m	1500m	1500m	1500m	1000m	1000m	1000m	800m	500m
Total power	3600kW 3600kW	3365kW	2446kW	1640kW	1193kW	1007kW	806kW	648kW	351kW	224kW
Hydraulic winch	250kN 250kN	200kN	150kN	120kN	100kN	80kN	60kN	40kN	40kN	20kN
Cutter power at shaft	800kW	582kW	470kW	300kW	170kW	115kW	90kW	55kW	37kW	22kW

Features

High Efficiency: With integrated dredging, transporting, and discharging functions, our vessels can operate continuously, resulting in higher production efficiency.
Precise Dredging: Equipped with Siemens PLC control systems, the vessel can perform precise dredging in specific areas with accurate contouring using the cutter head control and positioning system.
Strong Adaptability: Capable of working in various soil conditions, our dredgers can handle different types of cutters to dig sand, sandy loam, silt, and more. They perform well in calm inland rivers, lakes, and coastal ports with low currents and minimal waves.
Cost-Effective: Our dredgers complete excavation and transportation in a single step, eliminating the need for multiple vessels and reducing overall project costs.

Detailed Features

Pumps

Brands: Datang, Kingda, Boxin, Shijiazhuang Industrial Pump Factory (SNG)

Diesel Engine

Brands: Cummins, Mitsubishi, Weichai

Cutter Head

Features: Removable cutter teeth made from high-chromium alloy, offering excellent wear resistance.

Hydraulic System

Brands: Rexroth, Vickers, Yuken (Japanese)

PLC Control System

Brand: Siemens

Hydraulic Coupler

Brand: CNPC Jichai Power

Customer Case Studies

A 26-inch Cutter Suction Dredger is operating at a construction site in Egypt for dredging work. This dredger is designed to handle a flow rate of 6,000 m³/h, reach a dredging depth of 18 meters, and discharge material up to 2,000 meters away. It is equipped with anchor boom.
A 26-inch Cutter Suction Dredger is operating at a construction site in Indonesia for dock dredging. This vessel is designed to handle a flow rate of 6,000 m³/h, reach a dredging depth of 18 meters, and discharge material up to 2,000 meters away. It is powered by a Mitsubishi engine.
A 20-inch Cutter Suction Dredger is operating offshore in the Maldives for coral dredging and channel deepening. This vessel is designed to handle a flow rate of 3,500 m³/h, reach a dredging depth of 15 meters, and discharge material up to 500 meters away. It is powered by a Cummins engine.
A 20-inch Cutter Suction Dredger is working in the river channels of Bangladesh for sand and silt removal. This vessel is designed to handle a flow rate of 3,500 m³/h, reach a dredging depth of 15 meters, and discharge material up to 1,500 meters away. It is powered by a Cummins engine.
A 12-inch Cutter Suction Dredger is being used in the river channels of Bangladesh for dredging work. This vessel is designed to handle a flow rate of 1,200 m³/h, reach a dredging depth of 12 meters, and discharge material up to 1,000 meters away. It is powered by a Cummins engine.

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