Your Professional Dredge Pump Supplier

 

Our goal is to become your true partner in the field of clean water pump China. Each site features independent production lines integrating casting, heat treatment, machining, assembly, inspection, and testing. 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.

 

 
  • Submersible Dredging Pumps
    Offers flow rates from 50-1000 m³/h, head from 10-50 m, motor power from 15-200 kW, and handles particles up to 50 mm.
    Features fully submersible IP68 design, integrated motor-pump assembly, and built-in protection systems.
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  • Sand Dredging Pump
    Covers flow rates from 80-1000 m³/h, head from 12-50 m, motor power from 45-315 kW, and handles particle sizes up to 50 mm. Features optimized hydraulic design for 72-82% efficiency.
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  • Sand And Gravel Dredge Pumps
    Covers flow rates from 120-1500 m³/h, head from 18-70 m, motor power from 55-450 kW, and handles particles up to 100 mm, suitable for mixed sand and gravel handling projects.
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  • River Dredging Pump
    Covers flow rates from 300-2000 m³/h, head from 15-60 m, motor power from 90-500 kW, and handles particles up to 60 mm.
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  • River Dredge Pump
    Available with flow rates from 60-800 m³/h, head from 10-45 m, motor power from 30-250 kW, and handles particles up to 40 mm, suitable for various river dredging and sediment removal projects.
    Features semi-open impeller for...
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  • Pond Dredging Pump
    Offers flow rates from 20-150 m³/h, head from 8-30 m, motor power from 4-15 kW, and handles particles up to 20 mm.
    Features lightweight, self-priming capability for easy setup.
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  • Hydraulic Dredging Pump
    Offers flow rates from 200-2000 m³/h, head from 25-85 m, hydraulic pressure from 16-31.5 MPa, and handles particles up to 80 mm, suitable for large-scale dredging projects.
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  • Gravel Dredge Pump
    Features flow rates of 100–1200 m³/h, heads of 20–80 m, and motor power of 75–400 kW. Handles particles up to 150 mm, ideal for heavy-duty gravel dredging.
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  • Gold Dredge Pump
    Available with a flow rate range of 50-800 m³/h and head of 15-60 m, motor power from 37-250 kW, and maximum particle handling capacity of 80 mm, suitable for various gold mining scales.
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  • Submersible Dredge Pump
    The submersible dredge pump from Zhengrong Pump Industry can be completely submerged underwater and directly pump water at the underwater source without the need for a complex vacuum water diversion system, which is highly efficient and...
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  • Pond Dredge Pump
    This pond dredge pump is designed specifically for fragile aquatic ecosystems. It efficiently removes silt while minimizing disturbance to fish, plants, and water bodies, protecting the overall environment.
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  • Suction Dredge Pump
    As the core component of cutter suction vessels, sand pumping vessels and other equipment, suction dredge pumps provide powerful vacuum suction and high lift to achieve long-distance transportation of high-concentration slurry.
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Why Choose Us

Customized Solutions

If standard products cannot meet your needs, please provide special design drawings, and we can provide customized OEM services for state-of-the-art EPC housing production lines.

Production Market

Our products are well-received in the market and have been sold worldwide, with customers throughout North America, South America, Africa, Russia, Europe, and Southeast Asia.

Our Services

24/7 technical hotline, emergency fault response within 2 days, maintenance of equipment usage logs for maintenance reference, pump designs tailored for extreme conditions (e.g., strong acid/alkali environments), operator certification, and maintenance courses.

Production Equipment

The company has three advanced and complete production lines, all equipped with fully automated resin sand regeneration lines, US patented medium-frequency furnace technology, industry-leading heat treatment furnaces, and OBLF GS1000 vacuum direct-reading spectrometers from Germany.

 

Advantages of Dredge Pump

Powerful And Long-distance Pumping

They can move materials over long distances through pipelines and are equipped with powerful motors to handle the task.

Strong Suction

They have a strong suction capacity, allowing them to dredge from greater depths.

High Efficiency

Designed to handle highly abrasive slurries, they can pump more solids and less water, which can lead to significant cost savings.

 

Pond Dredge Pump

 

Features of Dredge Pump

Dredge pumps are designed to handle abrasive materials and feature robust, wear-resistant construction with large flow passages to prevent clogging.

 

The high tolerance between the impeller and casing for larger solids, reliable shaft seals to prevent leakage, and options for heavy-duty construction with replaceable wear parts for durability and low maintenance.

 

Types of Dredge Pump
 

Submersible dredge pumps

Submersible dredge pumps work underwater, making them perfect for jobs where the equipment must be in the slurry. These units are highly efficient and compact, allowing them to be deployed in confined spaces. They are commonly used in underwater mining, river dredging, and environmental cleanup projects.

Horizontal dredge pumps

Horizontal units are mounted on the surface and are typically used in applications where the equipment needs to transport slurry over long distances. These machines are known for their high flow rates and ability to handle large volumes of slurry.

Vertical dredge pumps

Vertical units are designed for applications where space is limited. These machines are installed vertically, with the impeller submerged in the slurry and the motor located above the surface.

Cutter suction dredge pumps

Cutter suction units are specialized machines equipped with a rotating cutter head that loosens and breaks up sediment before it is pumped away. These pumps are commonly used in large-scale dredging projects, such as harbor deepening and land reclamation.

 

Applications of Dredge Pump

 

Dredging Projects

Sand and gravel pumps are widely used in dredging operations in rivers, lakes, oceans, and reservoirs. They can effectively suction sand and gravel from the riverbed or seabed for channel dredging, port construction, and other purposes.

Mining And Metallurgy

In the mining and metallurgy industries, sand and gravel pumps are used to transport slurry containing solid particles. For example, during the extraction of iron ore or gold sand, the pump can transport the ore slurry to the beneficiation plant or tailings pond.

Land Development

In land development projects, sand and gravel pumps can be used for land reclamation. By transporting sand and gravel from the seabed or riverbed to designated areas, new land can be formed for urban construction or agricultural development.

 

Components of Dredge Pump
 

Pump Casing: The pump casing serves as the outer shell that houses all the internal components of the hydraulic dredge pump. It is designed to withstand the extreme forces and abrasiveness of the materials being pumped, making durability a key factor in its construction.

 

Impeller: At the core of any hydraulic dredge pump is the impeller, a rotating component that generates the necessary force to move sediment and slurry through the pump. The impeller’s primary function is to convert the mechanical energy from the motor into the kinetic energy needed to propel the slurry.

 

Suction Pipe And Inlet: The suction pipe and inlet are responsible for drawing the slurry or sediment into the hydraulic dredge pump. The efficiency of this process is influenced by factors such as the length, diameter, and depth of the suction pipe.

 

Discharge Pipe: Once the slurry is inside the pump, it needs to be transported to its destination, and this is where the discharge pipe comes into play. The discharge pipe carries the slurry away from the hydraulic dredge pump, and selecting the right material is crucial for handling abrasive and heavy slurries.

 

Seals And Bearings: Seals and bearings are essential components that ensure the smooth operation of a hydraulic dredge pump. Mechanical seals are responsible for preventing leakage of the slurry and maintaining the integrity of the system.

 

Shaft: The shaft is a critical component that transmits power from the pump’s motor to the impeller, driving the slurry through the system. Shafts are typically made from materials like stainless steel or hardened alloys to resist corrosion and abrasion.

 

Pump Motor And Power Source: Hydraulic dredge pumps can be powered by either electric or diesel motors, depending on the specific application and operational requirements. The motor provides the necessary power to drive the impeller and move the slurry.

 

Packing and Shipping of Dredge Pump

Packing

Wooden box

Shipping

Shipped by road, sea, rail

 

 

FAQ

 

Q: What is a dredge pump?

A: A dredge pump is a specialized pump used for removing sediment, debris, and other materials from bodies of water, such as rivers, lakes, and harbors. These pumps are essential components of dredging equipment and play a crucial role in various industries, including construction, mining, and environmental remediation.

Q: What is the difference between a dredge pump and a slurry pump?

A: The fluid mixture by and large consists of water as a liquid with solids being minerals, sand, gravel, human waste, drilling mud or most of the crushed materials. Dredge pumps are a special category of heavy duty slurry pumps that are utilized in the process of dredging.

Q: How far can a dredge pump sand?

A: A dredge alone usually is limited to about 2000 feet of pumping distance. However, there are many factors that can limit or increase this distance. Dredges along with booster pumps can essentially pump an indefinite distance but in most cases it becomes unfeasible economically.

Q: How to calculate the gpm of a pump?

A: You can calculate a pump's gallons per minute (GPM) using either a simple bucket-and-timer method for an existing system or a formula involving the pump's displacement and RPM for a theoretical value.

As one of the leading dredge pump manufacturers and suppliers in China, we warmly welcome you to buy high quality dredge pump for sale here from our factory. Good service and reasonable price are available.

2 inch dredge pump, hydraulic submersible dredge pump, Pond Dredge Pump
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