With the acceleration of urbanization and the advancement of water conservancy projects, the dredging and sand extraction industry is demanding higher efficiency, durability, and intelligence from its equipment. Excavator hydraulic Submersible Slurry Pump have emerged as the optimal solution for underwater operations, offering powerful sand and slurry transfer capabilities. From river dredging and lake restoration to port maintenance, tailings transport, and commercial sand mining, hydraulic submersible pumps are indispensable for ensuring efficient, safe, and cost-effective operations.
In this article, we will give an in-depth overview of the working principles, structural advantages, application scenarios, technical specifications, selection recommendations, frequently asked questions, and more, helping you choose the right pump for your project.
1. What is an Excavator hydraulic Submersible Slurry Pump?
The excavator hydraulic submersible slurry pump is a high-performance underwater sand pump, specifically designed to be powered by an excavator’s hydraulic system. Unlike traditional electric or diesel-driven slurry pumps, these pumps are driven directly by the excavator, allowing continuous and efficient extraction of mud, sand, gravel, coal slurry, tailings, and other solid-liquid mixtures under water or in harsh environments. Compact in size and easy to install, these pumps are widely adaptable to a variety of complex and challenging conditions, making them a must-have tool in dredging, mining, environmental protection, and construction.
2. Structure and Working Principle of Hydraulic Submersible Slurry Pump
A hydraulic submersible slurry pump mainly consists of a hydraulic motor, pump casing, impeller, agitator (optional), inlet and outlet, and sealing system. Here’s how it works:
2.1 Power Source
Hydraulic oil from the excavator’s system drives the hydraulic motor at high speed.
2.2 Driving the Pump
The hydraulic motor rotates the pump shaft and impeller, generating strong suction.
2.3 Material Extraction of Excavator hydraulic Submersible Slurry Pump
Underwater mud, sand, and gravel are drawn through the pump inlet into the pump chamber.
2.3.1 Slurry Discharge
The mixture is pressurized by the impeller and efficiently transported to the designated location through the discharge outlet.
2.3.2 Agitation Function of Excavator hydraulic Submersible Slurry Pump
Some models come with hydraulic agitators to break up settled material, prevent blockages, and improve pumping efficiency.
Tip: Including a structural diagram or real project photos on your website will enhance the user experience and trust.
3. Key Advantages and Features of Hydraulic Submersible Slurry Pump
3.1 Wide Compatibility
- Compatible with most brands and models of excavators (typically 6 tons and above).
- Suitable for remote, off-grid, or underwater operations where electric power is unavailable.
3.2 High Efficiency and Durability of Excavator hydraulic Submersible Slurry Pump
- Impeller and pump casing made of high-wear-resistant alloy or high-chrome materials.
- Optimized flow channels minimize blockage risk and maximize service life.
3.3 Simple Operation and Installation
- Directly driven by the excavator’s hydraulicsystem—no need for external power sources.
- Fast installation and removal; can be operated remotely for enhanced safety.
3.4 Advanced Sealing
- Multi-layer mechanical seals and specialized waterproof design ensure reliable, long-term underwater operation.
3.5 Versatile Applications
- Can handle a wide range of materials: silt, sand, gravel, sludge, tailings, etc.
- Suitable for rivers, lakes, ports, sand mining, tailings ponds, sewage pits, and more.
4. Application Fields and Customer Cases of Hydraulic Submersible Slurry Pump
4.1 River Dredging
Efficiently removes silt, debris, and sand from riverbeds, preventing blockages, improving water flow, and enhancing flood control.
4.2 Port and Harbor Maintenance
Maintains navigation channels and berths by swiftly removing accumulated sediment, ensuring safe and efficient vessel operations.
4.3 Lake Restoration
Extracts polluted silt or blue-green algae from lakes, supporting ecological restoration and water quality improvement projects.
4.4 Sand Mining
Enables sand and gravel extraction from rivers, lakes, and coastal areas, boosting production efficiency and reducing manual labor.
4.5 Tailings and Environmental Projects
Transfers mining tailings, coal slurry, and industrial sludge with high solids content, contributing to environmental compliance and green mining initiatives.
4.6 Foundation and Municipal Engineering
Ideal for sinking caissons, cleaning foundation pits, or removing sludge from sewage treatment facilities.
5. Hydraulic Submersible Slurry Pump Technical Specifications: Model Comparison
Below is a table of typical models and their main parameters. Customization is available based on specific site conditions and requirements.
| Specification of DMDS Series | ||||||||
| Specification | Model | |||||||
| No. | Item | DMDS30 | DMDS50 | DMD45 | DMDS70 | DMDS90 | DMDS140 | DMDS220 |
| 1 | Outlet (inch/mm) | 6/150 | 6/150 | 8/200 | 8/200 | 8/200 | 12/300 | 12/300 |
| 2 | Capacity (m3/h) | 150 | 250 | 400 | 400 | 500 | 800 | 1000 |
| 3 | Pump head (m) | 30 | 30 | 20 | 30 | 25 | 30 | 30 |
| 4 | Pump speed (rpm) | 980 | 950 | 980 | 980 | 980 | 950 | 980 |
| 5 | Motor Displacement (cc) | 80 | 125 | 107 | 160 | 200 | 355 | 500 |
| 6 | Oil supply (L/Min) | 80 | 130 | 110 | 160 | 200 | 360 | 500 |
| 7 | Power (KW) | 30 | 50 | 45 | 70 | 30 | 140 | 220 |
| 8 | Working pressure(Mpa) | 25-30 | 25-30 | 25-30 | 25-30 | 25-30 | 25-30 | 25-30 |
| 9 | Cutter motor displacement (cc) | 450 | 500 | 400 | 600 | 630 | 800 | 1000 |
| 10 | Cutter Motor Pressure (Mpa) | 15-20 | 15-20 | 15-20 | 15-20 | 15-20 | 15-20 | 15-20 |
| 11 | Cutter oil supply (L/Min) | 50 | 50 | 50 | 50 | 50 | 80 | 100 |
| 12 | Total oil supply (L/min) | 130 | 180 | 160 | 210 | 250 | 440 | 600 |
| Remark: If the minimum purchase quantity is more than 10 units, the price will be reduced by 10%. | ||||||||
Note: Parameters are for reference only. Custom models are available for different media, transmission distances, particle sizes, and site conditions (e.g., agitator-equipped, anti-blockage, anti-corrosion).
6. How to Select the Right Pump
Selecting the most suitable hydraulic submersible slurry pump requires considering several key factors:
① Capacity and Head: Choose the model based on your required flow rate, transport distance, and height difference.
② Material Characteristics: Consider the concentration, particle size, and corrosiveness of the slurry to determine the ideal pump material and design.
③ Excavator hydraulic Specs: Ensure your excavator’s hydraulic output matches the pump’s power and flow requirements.
④ Operating Environment: Consider factors such as long-term underwater operation, presence of large debris, or fibrous materials—choose agitator or anti-blockage models if needed.
⑤After-Sales Support: Select manufacturers with strong technical support and reliable spare parts supply.
7. Why Choose Us?
With over a decade of experience in hydraulic submersible slurry pump R&D and manufacturing, we serve customers worldwide in water conservancy, municipal, mining, and environmental sectors. Our advantages include:
- Professional engineering team for selection and technical guidance
- Custom solutions and on-site commissioning
- Comprehensive spare parts and after-sales service
- Extensive project references and operational experience
8. Contact Us for Quotes and Technical Advice
Are you looking for a reliable, efficient, and easy-to-operate excavator hydraulic submersible slurry pump for your dredging, sand mining, or tailings transfer project?
Contact us now for:
- Free project assessment and model selection
- Customized technical solutions
- Competitive prices and fast delivery
Contact Information
- Whatsapp: +86 18562320512
- Email: oceanpump08@tsbeng.com / lemonyu1982@gmail.com
