High-efficiency underwater sand and rock collection cutter suction dredger
Description
Choose the Right Dredger | Maximize Efficiency, Minimize Costs
Selecting the appropriate dredger directly impacts your project's bottom line. Duohui Intelligent offers a comprehensive range of sand dredgers—also referred to as sand mining vessels, suction dredgers, or dredging equipment—designed to integrate excavation, suction, screening, transport, and dredging operations into one unified platform.
We provide multiple configuration options, including bucket chain, hydraulic, and screw-type models, all fully compatible with standard dredging vessel operations. Whether you need a small unit for household use or large-scale equipment for industrial dredging projects, we can tailor the solution to your requirements.


Core advantages
Our equipment serves a wide range of environments: rivers, reservoirs, shallow coastal waters, sandpits, and mining sites. They can also be paired with gold mining machinery for combined operations. From small-scale household sand collection to large engineering dredging projects, our dredgers deliver consistent efficiency, lower labor demands, and increased material output.
Cutter Suction Dredger、Sand Dredger、Dredging Vessel、Sand Mining Machine、Dredging Equipment、Suction Dredger、Mining Machinery、Gold Mining Equipment
Specifications
|
Model |
Water flow rate |
Pumping Depth |
Transport distance |
Engine (s) Power |
|
DHCSD-100 |
200-300 m 3 /hr |
0-20m |
20-2000 mm |
20--60 kw |
|
DHCSD-150 |
350-600 m 3 /hr |
0-25 m |
20-2000 mm |
45-100 kw |
|
DHCSD-200 |
600-800 m 3 /hr |
0-25 m |
20-2000 mm |
75-200 kw |
|
DHCSD-250 |
950-1300 m 3 /hr |
0-30 m |
20-2000 mm |
90-300 kw |
|
DHCSD-300 |
1500-2200 m 3 /hr |
0-30 m |
20-2000 mm |
190-600 kw |
|
DHCSD-350 |
2200-2600 m 3 /hr |
0-30 m |
20-2000 mm |
290-800 kw |
|
DHCSD-400 |
2800-3200 m 3 /hr |
0-30 m |
20-2000 mm |
350-1000 kw |
|
DHCSD-450 |
3200-3800 m 3 /hr |
0-30 m |
20-2000 mm |
450-1200 kw |
|
DHCSD-500 |
3600-4200 m 3 /hr |
0-30 m |
20-2000 mm |
600-1500 kw |
FAQs
Q1: What if my project doesn't fit a standard boat size?
A1: Then we build one that does. Every Weed Cutting Boat we ship starts with your numbers—tonnage, depth, daily output. We customize from there and provide free design drawings so there are no surprises.
Q2: How long will this boat be part of my fleet?
A2: For many years to come. The hull is built for 8 to 15 years of steady work. The cutter and impeller—the parts that take the hardest hits—are good for 2 to 3 years. And we'll be there with replacements and advice as long as you own it.
Q3: If something breaks, how fast can you help?
A3: We don't leave you waiting. Our support team is available 24/7, and if we can't fix it remotely, we'll have someone on-site within 48 hours.
Q4: Is this boat only for freshwater, or can it handle the sea?
A4: It handles both. We use anti-corrosion materials throughout, so whether you're working in a lake or a shallow coastal zone, the boat performs reliably.











