A jet suction dredger (JSD) is a highly efficient dredging vessel designed for extracting and transporting sediments, sand, silt, and other underwater materials. It combines high-pressure water jets and a powerful suction pump to loosen and vacuum up deposits, making it ideal for:

River & lake dredging

Port & harbor maintenance

Land reclamation projects

Mining & environmental cleanup

Key Features & Advantages
✔ High Efficiency – Uses water jets to break up compacted soil before suction, enabling faster operations.
✔ Precision Dredging – Adjustable suction depth ensures accurate sediment removal without excessive disturbance.
✔ Versatile Applications – Works in shallow and deep waters, handling sand, mud, clay, and soft rock.
✔ Eco-Friendly – Minimizes turbidity (water cloudiness) compared to traditional dredgers.
✔ Cost-Effective – Lower fuel consumption and operational costs than cutter suction dredgers in suitable conditions.

Working principle:
Water Jet System – High-pressure jets loosen the seabed material.

Suction Pipe – A centrifugal pump creates strong vacuum suction.

Transportation – The slurry (water + sediment) is pumped through pipes to a disposal area or processing facility.

Optional Screening – Some models include onboard separation to filter debris.

Water Jet System – High-pressure jets loosen the seabed material.

Suction Pipe – A centrifugal pump creates strong vacuum suction.

Transportation – The slurry (water + sediment) is pumped through pipes to a disposal area or processing facility.

Optional Screening – Some models include onboard separation to filter debris.

The above technical parameters are for reference only,specific device configuration depends on the conditions of each project,customer and technical requirements.

Types of Jet Suction Dredgers
Stationary (Non-Self-Propelled) – Used in fixed locations like ponds or small rivers.

Self-Propelled – Larger vessels with mobility for offshore or deep-water projects.

Modular Design – Can be mounted on barges or pontoons for flexible deployment.

Shooting faucet
Material: Usually made of strong and wear-resistant metal materials, such as cast iron, stainless steel, etc., to resist the erosion and wear of water flow and mud and ensure long-term stable operation.
Shape: Generally a circular or oval tubular structure, with a sand suction port at the front end and a sand suction pipe at the rear end. Some shooting and suction faucets will also be designed to be bendable or retractable according to actual needs to adapt to different working environments and angle requirements.
Counterweight: In order to ensure the stability and verticality of the shooting and suction faucet underwater, counterweight blocks are usually installed at or around its bottom so that the sand suction port can be better close to the bottom mud layer and improve the sand suction efficiency

sand Pump

The dredge pump is the core component that transports the slurry (a mix of water, sand, and sediment) through the pipeline. Designed for heavy-duty performance, it handles abrasive materials with high efficiency. Key features include wear-resistant materials, strong suction capacity, and variable speed control to optimize production.

PLC Control System

The control room is the command center of the dredger, equipped with advanced monitoring and control systems. Operators use joysticks, touchscreens, and sensors to manage the cutter head, suction pipe, pumps, and positioning systems (like GPS or DP). Real-time data on depth, pressure, and efficiency ensures precise and safe dredging operations.

Shandong yongsheng dredging machinery Co.,LTD.is located in Huanglou Street, Qingzhou City, Shandong Province, China. It has 2 production bases , total area near 2000m2, and more than 20 years manufacturing experience in water area environmental protective equipment. It is a professional supplier of integrated with R&D, consultation, manufacturing and after-sale service. Yongsheng now has obtained certification: ISO9001.