Dredging Depth: 20 m (at -48° bridge angle)
Discharge Pipe Diameter: DN700 mm / DN650 mm (inboard pump outlet)
Discharge Height: approx. 8250 mm above baseline
Pipe Material: Suction & discharge pipes – Q235-A; bends & swivel joints – ZG270-500
Inboard Mud Pump: JF-P650-SKD-00; flow rate 7000 m³/h; head 62 m; speed 525 r/min
Subsea Mud Pump: JF131-28-65; flow rate 7000 m³/h; head 32 m; speed 415 r/min
Drive Mode: Series operation of subsea pump + inboard pump
Bucket Wheel Diameter: 4400 mm
Drive: 2×Hägglunds CA210 motors
Cutting Torque: 439 kN·m (Δ=22 MPa)
Rotating Speed: 13 r/min (hard soil) / 16 r/min (soft soil)
Main/Spud Pile: Φ1200 mm, length 30 m, weight 40 t, material Q345-A
Trolley Stroke: 6000 mm
Lifting Cylinder: Bore 250 mm, stroke 3500 mm
Inboard Pump Engine: G8300ZC31B, 2206 kW, 600 r/min
Electric Shaft Engine: G6300ZC18B, 1323 kW, 550 r/min
Main Generator: 257 kVA, 400 V, 50 Hz
Electric System: AC 400/380/220 V, DC 24 V; 50 Hz
High Efficiency Pump Series: Subsea + inboard pump series design boosts suction and delivery performance.
Adaptable Bucket Wheel: Dual-speed drive fits both hard and soft soil, with strong cutting torque.
Stable Positioning: Trolley pile system with long stroke reduces pile pulling frequency.
Independent Electric Shaft System: Isolated from ship’s normal power, ensures stable pump speed regulation.
Wear-Resistant Structure: High-strength steel and wear-resistant plates extend service life.
Integrated Control: Centralized console with monitoring and alarm ensures safe operation.
Port & Channel Dredging: Maintain navigation depth for ports, rivers and coastal channels.
Land Reclamation: Deliver silt and sand for coastal reclamation projects.
Reservoir & Lake Dredging: Clear sediment to restore water storage and ecological function.
Offshore Engineering: Provide foundation trench dredging for pipelines and cables.
Inland Waterway Management: Dredge silt to ensure smooth inland water transportation.
The bucket wheel is driven by two Hägglunds CA210 Hydraulic Motors, with two speeds: 13 r/min for hard soil and 16 r/min for soft soil.
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