Your Professional Dredger Supplier
Our goal is to be your reliable partner for dredger in China. Qingzhou Yakai Dredging Manufacturing Machinery Co., Ltd. is a modern dredging equipment manufacturing enterprise integrating R&D, production, sales and service. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
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Marine Dredger☆☆☆Dredger is a specialized engineering vessel used for projects such as channel dredging, port construction, and land reclamation.view more
☆☆☆It plays a crucial role in marine engineering by excavating and suctioning seabed... -
Plain Suction Dredger☆☆☆The plain Suction Dredger (CSD) is a highly efficient underwater dredging vessel that uses a rotating cutter head to excavate seabed sediments or rocks and a powerful suction pump to transport the loosened mixture (slurry) through...view more
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Gold Dredger☆☆☆A gold suction dredge is a specialized mechanical device designed to extract gold and other precious metals from riverbeds, lakes, or offshore sediments.view more
☆☆☆It separates gold particles from sand or gravel through... -
20inch Cutter Suction Dredger☆☆☆ The 20-inch cutter suction dredger is a medium-sized, high-efficiency dredging vessel with large displacement. It breaks underwater silt, sand and loose gravel layers through the cutter head, and realizes integrated operations of...view more
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10inch Cutter Suction Dredger☆☆☆ The 10-inch cutter suction dredger is a dredging vessel suitable for medium and small water areas. It cuts and disturbs underwater silt, sediment and soft soil layers through the cutter head, and realizes integrated operations of...view more
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Aquatic Weed Harvester☆☆☆The conventional practical mowing boat is an efficient water governance equipment integrating cutting, collection, transportation, storage and unloading of aquatic weeds on the water surface.view more
☆☆☆Its core function is to... -
Bucket Line Dredger☆☆☆A gold dredge is a specialized floating platform designed to extract gold from gold-bearing placer deposits in rivers,lakes,and coastal areas.It is essentially a floating factory that integrates the functions of...view more
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Multifunctional Mowing Boat☆☆☆A weed harvesting boat is a specialized environmental vessel designed to clear excessive aquatic plants(such as weeds, water hyacinth, duckweed,etc.)from rivers,lakes,and scenic water bodies.view more
☆☆☆It is essentially a... -
18inch Cutter Suction Dredger☆☆☆ The 18-inch cutter suction dredger is the core equipment of modern dredging engineering, transporting, and discharging silt in a single operation.view more
☆☆☆ Its modular design and reliable performance make it an ideal choice... -
14inch Cutter Suction Dredger☆☆☆ YK's 14-inch cutter suction dredger integrates multiple cutting-edge technologies, dedicated to delivering exceptional returns on investment for our customers.view more
☆☆☆ This equipment is not only extremely reliable but also... -
12inch Cutter Suction Dredger☆☆☆The 12-inch cutter suction dredger manufactured by YK Dredging Machinery Manufacturing Co., Ltd. strictly complies with national ship inspection standards.view more
☆☆☆ It offers reliable operation and low maintenance costs,... -
Electric Dredger☆☆☆An electric suction dredger is a type of dredging equipment powered by electricity.view more
☆☆☆Primarily used for underwater earthwork operations such as:
river dredging、 port construction、lake desilting.
☆☆☆The...
why choose us
'lt is awesome to work with Creative. amazingy organized,easy to communicate with. responsive with next iterations,and beautiful work.
Product market
Our products are highly sought after and exported to countries and regions such as Southeast Asia, Africa, and South America.
Production equipment
We are equipped with advanced equipment including welding machines, bending machines, machine tools, and drilling machines.
Our certifications
We are a pioneer in technological advancements in the global dredging industry and have obtained CCS and BV certifications.
Our services
Our team of experts will recommend the most suitable products according to customer needs and provide detailed consultation, we ensure timely delivery, and we provide long-term service support.

The plain suction dredger (csd) is a highly efficient underwater dredging vessel that uses a rotating cutter head to excavate seabed sediments or rocks and a powerful suction pump to transport the loosened mixture (slurry) through pipelines to designated areas. It is widely used in projects such as channel dredging, port construction, and land reclamation.
Specification of Dredger
|
Main parameters |
Hull size (L*W*H) |
Clean water flow |
Total installed power (KW) |
Dredging depth |
Dredging pump |
Trolley travel |
|
8 inches (single unit) |
16×4.26×1.5m |
>900m³/h |
295 |
6m |
250WN |
- |
|
8/10 inches (dual unit integrated) |
23.6×3. 8×1.5m |
>750m³/h |
384 |
8m |
200WN |
2.5m |
|
10 inches (dual unit) |
29.6×5.28×1.6m |
1200m³/h |
578 |
10m |
250WN |
- |
|
12 inches |
42.8×7.1×2m |
>2000m³/h |
993 |
13m |
300WN |
2.5m |
|
14 inches |
40.5×7.6×2m |
3000m³/h |
1099 |
14m |
350WN |
2.5m |
|
18 inches (Class A navigation area) |
46.72×8.8×2.2m |
3500-4000m³h |
1803 |
14m |
450WN |
2.5m |
|
18 inches (Class B navigation area) |
45.7×8.06×2.2m |
>3500m³/h |
1453 |
14m |
450WN |
2.5m |
|
18 inches (Class B navigation area) |
37.6×8.06×2.2m |
>3500m³/h |
1453 |
14m |
450WN |
- |
|
20 inches (Class A navigation area) |
45.5×8.06×2.2m |
>6000m³/h |
2855 |
14m |
500WN |
2.5m |
|
22 inches |
47.5×8.9×2.7m |
6000-8000m³/h |
3014 |
14m |
550WN |
2.5m |
|
24 inches |
49.5×11.4×3m |
7000-9000m³/h |
4280 |
21m |
Submersible pump:600WN Overwater pump:600WN |
2.5m |
Features of Dredger
Continuous high-efficiency operation:
Integrates cutting, suction, and transportation, making it suitable for large-scale, long-term projects.
Strong adaptability
Different cutter heads (e.G., toothed, eco-friendly) can be used for various seabed materials (mud, clay, sand, rock, etc.).
Precision control
Modern csds are equipped with gps and automation systems, achieving high-precision dredging (errors can be controlled within centimeters).
Eco-friendly design
Some models include anti-diffusion devices to minimize environmental impact from suspended particles

Types of Dredger
Portable sand dredger: Portable sand dredger can be self-propelled or non self-propelled. The hull can be dismantle and box-like structure. The dismantle type can be assembly at working place easily and be transported by road, railway and container accordingly, it is very convenient to install and move in the working place.
Submersible sand slurry dredger: Submersible sand slurry dredger is designed and manufactured with optimized hydrodynamics technology for sand suction and silt clearing. This kind of submersible slurry pump dredger equipment driven by electric motor.
Jet sand suction dredger: Jet sand suction dredger is composed mainly of high pressure water pump and sand suction pump. The dredger is detachable so it can be loaded into the container and easily transported to any location.
Cutter suction dredger: This type of cutter suction dredger contains a cutting tool that loosens material from the bottom and transports it to the mouth of the suction apparatus. The use of a cutter-suction dredge May be necessary for removing debris from hard surfaces that would prevent efficient suction via standard methods.
Application of Dredger
Excavating: Dredging aids in the underwater excavation necessary for construction projects such as bridges, docks, and piers, by removing sediment and preparing the site.
Reconfiguring for larger ships: Dredging deepens and widens waterways, allowing larger cargo vessels to navigate through, resulting in economic benefits. It also ensures passage during low tide, extending docking opportunities.
Gathering construction materials: Sediment removal can involve collecting sand, gravel, and other debris used in construction, particularly for concrete production.
Cleaning canals: Heavy traffic in canals leads to sediment and debris accumulation. Dredging clears canals, improving waterways for various boats.
Mining for precious metals: Some bodies of water contain sediment with traces of valuable metals like gold and diamonds. Dredging helps extract this mineral-rich sediment.
Components of Dredger
Cutter head
A rotating device with cutting teeth installed at the front of the vessel, designed to break up hard sediments or soft rock on the seabed.
Suction pipe & dredge pump
The cut material mixes with water to form a slurry, which is then sucked through the suction pipe and pumped to the discharge pipeline.
Positioning system
Typically uses anchor cables or spud poles (e.G., "cutter suction" type) to ensure operational precision.
Discharge system
The slurry can be directly pumped to reclamation areas or transported by barges.
Packing and Shipping of Dredger
|
Packing |
Tray |
|
Shipping |
Shipped by road, sea, rail |
FAQ
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