A professional engineering team from Qingzhou Yongli Mining and Dredging Machinery arranged a 16-inch cutter suction dredger at India inland river waterway. The vessel features a flow capacity of 2500m³ per hour, a maximum dredging depth of 14m and a discharge distance of 1500m. It was deployed to solve river silt accumulation, waterway shallowing and navigation obstruction problems. Workers carried out on-site assembly, commissioning and trial operation step by step. The cutter head cuts underwater sediment, and the pump sucks and transports slurry to the designated area continuously. It runs stably with high efficiency, effectively improving waterway navigation capacity and meeting local dredging and channel renovation demands.

This cutter suction dredger (model YLCSD-400) is a high-efficiency dredge machine built by Qingzhou Yongli Mining and Dredging Machinery Co., Ltd., a professional dredger manufacturer with over 30 years of experience. Designed for heavy-duty sand dredging and slurry dredger work, it delivers stable performance, easy operation and low maintenance for waterway cleaning, channel deepening, port maintenance, land reclamation and river silt removal worldwide.

Key Specifications

The dredger features water flow of 2500m³/h, sand capacity 370–500m³/h, slurry concentration 15–20%, max dredging depth 14m, min depth 1.1m and discharge distance up to 1500m. Suction pipe ID 450mm, discharge pipe ID 400mm. Total weight 145 tons, average draught 1.2m, total installed power 1155kW. It works well in rivers, lakes, reservoirs and coastal areas for continuous sand dredging and slurry dredger operations.

Structure & Stability

The cutter suction dredger uses a modular pontoon design with main pontoon, side pontoons and connection blocks, easy to disassemble, transport and assemble on site. Overall length 44m, breadth 7.1m, depth 2.0m. Marine-grade steel plates 8–16mm thick provide strong structure and corrosion resistance, ensuring stability in strong currents for long-term dredger work.

Power & Hydraulic System

Power system includes Cummins main engine (895kW), auxiliary engine (224kW) and 30kW generator, reliable and fuel-efficient. The dredging pump is Shijiazhuang 350/300BX-GA, flow 2200–2500m³/h, head 65m, Cr26 alloy material with high wear resistance, suitable for heavy sand dredging and slurry dredger tasks. Hydraulic system with HUADE valves and Zhejiang motors drives a 1500mm cutter head (100kW, 0–30RPM) to cut soil, clay and compacted sand efficiently.

Positioning & Control

Equipped with ladder winch, swing winches, anchor winches, 18m spuds and spud carriage for accurate positioning and stable movement during dredge machine operation. SIEMENS PLC control system in a front cabin allows one operator to control all functions, with real-time monitoring and fault alarm to reduce downtime for the dredger.

Auxiliary & Safety

Complete auxiliary equipment includes deck crane, anchor booms, fuel tanks, storage rooms, firefighting and life-saving devices, night floodlights and ventilation fans. Marine paint and zinc anode protection extend service life over 15 years, fitting both fresh and saltwater sand dredging and slurry dredger projects.

Working Principle

The cutter suction dredger operates continuously: position with spuds and anchors, cutter head cuts sediment, pump sucks and forms slurry, slurry is discharged up to 1500m, then the dredger moves forward for full coverage. This process improves sand dredging and slurry dredger efficiency and reduces project cost.

Applications

This dredger is widely used for inland river silt removal, coastal port maintenance, land reclamation, construction sand extraction, mineral mining and environmental sediment cleaning. It has operated successfully in Nigeria, Russia, Kazakhstan, Iraq, Bahamas and Philippines, adapting to various climates and terrains.

Advantages

High performance with 2500m³/h flow, 14m depth and 1500m discharge for medium-to-large sand dredging and slurry dredger projects. Reliable quality with strong structure, wear-resistant pump and famous engines. Professional after-sales service includes on-site assembly, training and one-year warranty for main parts. Customization available for dredger projects with different requirements.

Conclusion

The 16-inch hydraulic cutter suction dredger is a powerful, reliable and cost-effective dredge machine for global sand dredging and slurry dredger projects. With strong parameters, durable design, intelligent control and full service, it meets high standards of waterway maintenance, land reclamation and mining. Choose this dredger for stable performance, high efficiency and project success.