Classification: CCS (IACS)
Type: Non-propulsion cutter suction dredger, Dredging within river/lake, FTP
Navigation Area: Offshore
Nominal Dredging Capacity: 3500m³/h
Maximum Dredging Depth: 25m
Discharge Pipe Diameter: Φ850mm
Nominal Discharge Distance: 5000m
Endurance: Dredging 20 days; Towing 30 days
Soil Adaptability: Silt, clay, fine sand, medium-fine sand, coarse sand, gravel, pebbles
Length Overall (LOA): ~101.30m
Length Between Perpendiculars (LBP): 79.10m
Molded Breadth: 18.20m
Molded Depth: 5.20m
Design Draught: 3.70m
Load Draught: 3.50m
Total Tonnage: 2621t
Net Tonnage: 786t
Accommodation: 28 persons
Total Installed Power: 9881kW
Main Diesel Engine (Dredging): 16V240ZC, 1 unit, 2350kW/1000rpm
Pump Diesel Engine: 16RK270T (MAN), 1 unit, 4040kW/1000rpm
Auxiliary Engine: G128ZLCaf1, 1 unit, 200.5kW/1500rpm
Cutter Power: 1400kW
Inboard Pump: Double shell, 1 unit; 3620kW/257rpm; Head 72m, Flow 14400m³/h
Underwater Pump: Single shell, 1 unit; 1680kW/280rpm; Head 33m, Flow 14400m³/h
Ladder Winch: Hydraulic, 2 units; Rope Φ56mm, Pull 550kN, Speed 20m/min
Transverse Winch: Hydraulic, 2 units; Rope Φ56mm, Pull 600kN, Speed 20m/min
Cranes: Fore 16t, Middle 16t, After 3t (full working radius & speed configured)
TFW2300-6: 2100kW/1000rpm, 3×6300V
TFXW-800-6-H: 900kW/1000rpm
800kW generator: 3×400V/1358.5A
TFX-315M4-H: 150kW/1500rpm, 3×400V/271A
High-standard classification: CCS (IACS) classed, offshore approved, strong safety and reliability.
Ultra-high configuration: Total power 9881kW, large-diameter pump system, high-efficiency hydraulic winches and heavy-duty cranes.
Strong dredging performance: 3500m³/h large capacity, 25m dredging depth, 5000m long-distance discharge.
Wide soil adaptability: Suitable for silt, clay, sand, gravel and pebbles, strong engineering versatility.
Long endurance: 20 days continuous dredging, 30 days towing endurance, suitable for long-term offshore operations.
Stable and efficient: High-power MAN engine, dedicated dredging pump, hydraulic drive system, low failure rate and high working efficiency.
FAQ: 3,500 m³/h Cutter Suction Dredger
Q1: What are the key operational capabilities of this dredger in terms of production capacity, discharge distance, and soil adaptability?
A: This vessel is designed for high-efficiency large-scale projects with the following specifications:
Production Capacity: It boasts a nominal yield of 3,500 m³/h, driven by a powerful dual-pump system (Inboard pump: 3,620kW; Underwater pump: 1,680kW).
Discharge Distance: Equipped with Φ850mm discharge pipes, it achieves a standard discharging distance of 5,000 meters (5 km), minimizing the need for Booster Stations in medium-range Reclamation.
Soil Adaptability: With a 1,400kW cutter power, it is capable of excavating a wide range of soil types, including silt, clay, fine to large sand, gravel, and pebbles.
Dredging Depth: It operates effectively down to a maximum dredge depth of 25 meters.
Q2: How is the vessel powered, and what ensures its endurance for long-term offshore operations?
A: The vessel features a robust diesel-electric drive system with a total installed power of 9,881 kW, ensuring reliable performance in demanding conditions:
Main Power Generation: Powered by main generator sets (e.g., 900kW and 800kW units) and a dedicated Underwater Pump Generator Set (2,100kW generator driven by a 2,350kW diesel engine).
Cutter & Pump Drive: The Cutter Head is driven by a 1,400kW system, while the massive Dredge Pumps are driven by high-power diesel engines (e.g., MAN 16RK270T, 4,040kW for the main pump).
Endurance & Sustainability: Designed for continuous offshore work, it has a fuel and supply endurance of 20 days for dredging operations and 30 days for towing. The vessel accommodates a crew of 28 persons, supporting round-the-clock shifts.
Q3: What are the classification standards and structural dimensions that make this vessel suitable for offshore navigation?
A: The vessel is built to rigorous international and domestic standards, ensuring safety and stability in offshore environments:
Classification: It holds CCS (China Classification Society) certification with the notation ★ CSA Cutter Suction Dredger, approved for Dredging Within R1 (Restricted Area 1) and Non-propulsion status. Its navigation area is certified for Offshore waters.
Structural Dimensions: With a Length Over All (LOA) of ~101.30m, a Molded Breadth of 18.20m, and a Design Draught of 3.70m, it offers a stable platform for heavy dredging.
Tonnage & Stability: The vessel has a Total Tonnage of 2,621t, providing the necessary displacement and stability to handle rougher offshore sea states compared to smaller Inland Dredgers.
Second hand 3500 m³/h Cutter Suction Dredger (CSD):
Typical Applications
The 3500 m³/h Cutter suction dredger (CSD) is a medium-to-large-sized Dredging Vessel renowned for its robust performance and high adaptability. Its typical application scenarios include:
1. Port and Waterway Dredging
Dredging accumulated silt and sediment in ports, berths, and approach channels to maintain or deepen navigable depths.
Clearing blockages in waterways caused by natural sedimentation or storms.
2. Land Reclamation
Transporting excavated material over long distances via pipelines to designated areas for land creation, land expansion, or artificial island construction.
Widely used in major infrastructure projects such as coastal urban development, industrial park construction, and airport land reclamation.
3. River and Lake Remediation
Solving siltation issues in inland rivers, canals, and lakes to enhance flood control and drainage capacity.
Improving water flow and restoring aquatic ecological environments.
4. Coastal Maintenance and Protection
Clearing nearshore shoals to prevent coastal erosion.
Replenishing sand sources in conjunction with beach nourishment projects.
5. Reservoir and Hydraulic Structure Desilting
Removing sediment deposits from reservoir bottoms to restore storage capacity and ensure the normal operation of hydraulic facilities.
✅ Why is it suitable for these scenarios?
High Productivity: A stable production capacity of 3,500 m³/h makes it ideal for medium-to-large-scale projects.
Strong Adaptability: Efficiently handles various soil types, including sand, silt, and loose gravel.
Long Discharge Distance: Capable of pumping material up to 5 kilometers, reducing secondary transportation costs.
Continuous Operation: Achieves integrated "Dig-Transport-Fill" continuous construction, ensuring high efficiency.
Therefore, the 3500 m³/h CSD stands as one of the core assets shouldering primary tasks in modern dredging engineering.
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