4-Inch EXF 4000 Hydraulic Excavator Pump Attachment
The EXF 4000 converts any 20–45 ton excavator into a powerful dredging system, delivering up to 1,200 GPM and 160 ft of head while handling 40–70% solids. Built with EDDY Pump’s patented non-clog design, it moves 75–150 cubic yards of material per hour through viscous, abrasive, and high-density slurries with minimal wear. Designed for mining, industrial, and environmental dredging, the EXF 4000 offers modular cutterhead options, flow sensors, and recirculation systems for maximum efficiency and control in demanding operations.
Performance Highlights
- High Solids Handling: Pumps up to 40–70% solids by volume, ideal for dense slurries, sludge, and tailings.
- Non-Clog Design: Patented open rotor technology moves large solids up to 3 inches, reducing downtime and maintenance.
- High Flow Capacity: Achieves up to 1,200 GPM and 160 ft of head, delivering superior production rates in heavy-duty dredging.
- Rugged Construction: Built to withstand highly abrasive and corrosive environments typical in mining, oil, and industrial sectors.
- Modular Cutterhead Options: Choose from standard, self-cleaning, auger, or extended heads to match diverse dredging conditions.
- Ease of Integration: Attaches directly to 20–45 ton excavators or operates via hydraulic power units, enabling rapid setup and mobility.
- Precision Monitoring: Compatible with magnetic flow meters and pressure gauges for optimized production and plug-free operation.
- Versatile Applications: Handles slurries, drilling muds, tailings, fly ash, and other high-viscosity materials across multiple industries.
Gallery
4-Inch EXF 4000 Hydraulic Excavator Pump Attachment
Technical Specifications
Performance Specifications
- Flow Rate: 250–1,200 GPM
- Head Range: Up to 160 ft
- Production Rate: 75–150 cubic yards of material per hour
- Percent Solids: Up to 40–70% solids by volume
- Solids Handling Capacity: Up to 3 inches
- Maximum Speed: 1,800 RPM
Physical Specifications
- Discharge Size: 4 inch
- Suction Size: 6 inch
- Overall Weight (with pump): 3,300 lbs (1,496 kg)
- Frame, Discharge Elbow & Cutterhead Only: 1,700 lbs (771 kg)
- Excavator Carrier Requirement: 20–45 tons (18,000–40,000 kg)
Hydraulic Power Requirements
- Pump Circuit Flow: 35 GPM at 5,000 PSI (80cc motor)
- Cutterhead Circuit Flow: 12–18 GPM at 5,000 PSI (1340cc motor)
- Hydraulic Power Source: Excavator auxiliary hydraulics or external hydraulic power unit (HPU)
- Safety Features: Crossover check valve to prevent hydraulic motor damage and rotor separation
Recommended Sensors and Monitoring
- Hydraulic Pressure Gauge: For both pump and cutterhead circuits (0–6,000 PSI range)
- Magnetic Flow Meter: Maintains stable, plug-free pipeline flow and ensures optimal production rates
Optional Accessories
- Magnetic Flow Meter for performance tracking
- Discharge Line Pressure Gauge (0–150 PSI)
- “Quick Prime” Valve (requires 24V air system)
- Pivot-Mounted Discharge Hose Carrier (compatible with most excavators)
- Recirculation System for pre-mixing applications (requires 24V air system)
EDDY Pump – 4-Inch EXF 4000 Hydraulic Excavator Pump Attachment
PUMP CURVE
A pump curve outlines how the pump performs at various flow and head levels. For the 4 Inch EXF 4000 Hydraulic Excavator Pump Attachment, selecting the correct curve ensures efficient slurry handling, consistent output, and reliable performance across dredging and sediment removal projects.
Technical Drawings & Resources
Cutterheads and Accessories for the Excavator Pump Attachment
The EDDY Pump Excavator Dredge System is among the most modular and versatile dredging solutions available today. Each unit can be customized with interchangeable cutterheads and accessories to handle a wide range of dredging, slurry, and sediment-removal tasks. Whether operated from land or mounted on a barge, the system allows you to mix and match components for maximum efficiency, production, and adaptability across diverse job sites. Explore the available cutterhead and accessory options below:
- Standard Cutterhead
- Self-Cleaning Head
- Watter Jetting Ring
- Liner Safe Wheels
- Re-circulation
- Auger Head
- Mixer Head
Model Comparison
EDDY Pump Excavator Dredge Attachments
| Specification | 4-Inch EXF 4000 | ||||
|---|---|---|---|---|---|
| Discharge Size | 4 inch | 6 inch | 8 inch | 10 inch | 12 inch |
| Suction Size | 6 inch | 8 inch | 10 inch | 12 inch | 14 inch |
| Max Flow | 1,200 GPM | 2,500 GPM | 3,600 GPM | 5,000 GPM | 7,300 GPM |
| Min Flow | 250 GPM | 450 GPM | 1,400 GPM | 1,600 GPM | 2,600 GPM |
| Head Range | Up to 160 ft | Up to 200 ft | Up to 230 ft | Up to 240 ft | Up to 180 ft |
| Solids Handling | Up to 3 in | Up to 5 in | Up to 7 in | Up to 9 in | Up to 11 in |
| Percent Solids | 40–70% | 40–70% | 40–70% | 40–70% | 40–70% |
| Max Speed (RPM) | 1800 | 1800 | 1200 | 1200 | 900 |
| Production Rate | 75–150 yd³/hr | 150–200 yd³/hr | 250–300 yd³/hr | 300–350 yd³/hr | 500–600 yd³/hr |
| Hydraulic Flow (Pump Circuit) | 35 GPM @ 5000 PSI | 57 GPM @ 5000 PSI | 120 GPM @ 5000 PSI | 120 GPM @ 5000 PSI | 160 GPM @ 5000 PSI |
| Hydraulic Flow (Cutterhead Circuit) | 12–18 GPM | 12–18 GPM | 20–28 GPM | 20–28 GPM | 20–28 GPM |
| Minimum Excavator Size | 20–45 tons | 20–45 tons | 60–94 tons | 60–94 tons | 60–94 tons |
| Overall Weight (Approx.) | 3,300 lbs | 4,800 lbs | 6,800 lbs | 7,500 lbs | 9,500 lbs |
| Solids Type | Sludge, Slurry, Tailings | Sludge, Slurry, Tailings | Heavy Slurry, Mining Waste | Mining Tailings, Sand | High-Density Slurry, Dredge Sediment |
Designed for the Toughest Industries
The 4-Inch EXF 4000 Excavator Pump Attachment is engineered for performance in some of the harshest and most demanding industrial environments. With its patented non-clog rotor design, high-solids handling capacity (up to 70% by volume), and robust hydraulic power integration, this attachment delivers reliable pumping for dense slurries, sludge, and abrasive materials across multiple sectors. Its adaptability for both land-based and barge-mounted excavators makes it a versatile solution for onshore, offshore, and confined dredging operations.
Mining and Tailings Management
Designed to move abrasive and high-specific-gravity materials such as mine tailings, overburden slurry, and process water sediment. The EXF 4000 ensures steady production even in highly viscous or compacted tailings environments where centrifugal pumps typically fail.
Construction, Sand, and Aggregate
Ideal for sand reclamation, pit dewatering, and maintenance of sediment basins. Its ability to pump large solids and dense slurries allows efficient removal of settled materials from construction sites, aggregate ponds, and wash plants.
Oil and Gas
Proven effective in pumping drilling muds, oil sands, and other hydrocarbon-laden slurries. The system withstands low pH and abrasive environments, supporting both exploration and refining site cleanup.
Pulp and Paper
Handles fibrous and viscous pulp waste streams with ease. Its clog-resistant design ensures uninterrupted operation in handling pulp sludge, black liquor residues, and waste recovery processes.
Power Generation (Fly Ash & Coal Ash)
Excels in the removal and transport of bottom ash, fly ash slurry, and coal waste materials. The pump’s high-wear-resistant components extend service life in abrasive, high-temperature waste systems.
Chemical and Industrial Processing
Handles corrosive, acidic, and abrasive process waste efficiently. Suitable for chemical byproducts, refinery sludge, and manufacturing residues that require reliable high-solids transfer.
Environmental and Remediation Projects
Used in lake and lagoon dredging, contaminated sediment removal, and silt remediation. The EXF 4000’s modular setup allows controlled excavation in sensitive habitats with reduced turbidity and minimal environmental disruption.
Fly Ash Removal from Power Plant Settling Basins
Case Study
Challenge
A coal-fired power plant experienced a significant buildup of fly ash and bottom ash in its settling ponds, resulting in reduced water retention capacity and operational inefficiencies. Traditional vacuum systems and centrifugal pumps are frequently clogged due to the abrasive and dense nature of the ash, leading to costly downtime and incomplete cleanouts.
Solution
The EXF 4000 Excavator Pump Attachment was deployed on a 40-ton excavator for hydraulic dredging of the ponds. Its non-clog rotor design and 70% solids-handling capacity allowed continuous pumping of abrasive ash slurry. Equipped with a self-cleaning cutterhead and magnetic flow meter, the system maintained a consistent discharge rate and prevented line blockages.
Result
The EXF 4000 achieved production rates exceeding 1,000 GPM, removing over 10,000 cubic yards of fly ash within three weeks. The project saw a 35% reduction in maintenance costs and a significant increase in operational uptime, delivering a reliable and cost-efficient alternative to conventional mechanical removal methods.
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If you need assistance with pump selection, sales or engineering support, call 619-404-1916.
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Frequently Asked Questions
What makes the EXF 4000 different from standard centrifugal or submersible pumps?
The EXF 4000 excavator pump attachment uses EDDY Pump’s patented non-clog rotor technology, allowing it to handle up to 70% solids by volume without clogging or excessive wear. Unlike centrifugal pumps that rely on high-speed impellers, it creates a strong vortex flow that moves large, abrasive, and viscous materials efficiently while minimizing maintenance and downtime.
What types of excavators are compatible with the hydraulic excavator slurry pump?
The 4-inch hydraulic excavator pump attachment is compatible with excavators in the 20–45 ton class. It can draw power directly from the excavator’s auxiliary hydraulic circuit or from an external hydraulic power unit (HPU), giving operators flexibility across different job sites without requiring major equipment modifications.
How much production can the 4-inch hydraulic excavator pump achieve in typical dredging or pumping conditions?
Depending on material type and setup, the excavator pump attachment achieves 75–150 cubic yards of material per hour, with flow rates up to 1,200 GPM and head capabilities up to 160 feet. This makes it well-suited for small to mid-scale dredging, lagoon cleanouts, and solids transfer where consistent production and uptime are critical.
What kinds of materials can the heavy-duty excavator pump attachment handle effectively?
The EXF 4000 hydraulic pump system is built to pump high-solids materials such as sludge, slurry, sand, drilling mud, fly ash, mine tailings, grit, and silt. Its open rotor design passes solids up to 3 inches in diameter, and it performs reliably with viscous, abrasive, or corrosive mixtures that challenge standard centrifugal pumps.
Can the system be customized for specific applications?
Yes. The excavator-mounted slurry dredge system is part of one of the most modular excavator dredge systems available. It can be paired with multiple cutterheads—including standard, self-cleaning, auger, or recirculation types—and equipped with accessories such as flow meters, pressure gauges, or priming valves. This modularity ensures optimal performance for each unique project.
Is a barge or floating operation possible with the 4-inch hydraulic excavator pump?
Yes. The EXF 4000 excavator pump attachment integrates easily with barge-mounted excavators for dredging operations in ponds, harbors, and lagoons. Its hydraulic-driven design and compact footprint make it ideal for shallow water or confined work zones that require high precision and mobility.
What kind of maintenance does the hydraulic submersible pump for excavator require?
Maintenance is minimal compared to other pump types. Operators primarily monitor hydraulic pressure, flow readings, and wear plate clearances. The non-clog rotor design drastically reduces wear, and periodic inspections of seals, liners, and hoses help extend operational life in abrasive or corrosive environments.
How does EDDY Pump ensure operational safety and reliability?
The system includes key safety features such as crossover check valves to prevent hydraulic motor damage, pressure and flow sensors to maintain proper operation, and anti-cavitation controls to prevent pump starvation. These safeguards protect both the equipment and operators during high-load dredging conditions.
What industries benefit most from the 4-inch hydraulic excavator pump attachment?
The excavator-mounted dredge pump is used across mining, construction, oil and gas, pulp and paper, power generation, chemical processing, and environmental dredging. Its ability to pump high-density and abrasive slurries makes it valuable for industrial waste removal, sediment management, and slurry transport operations.
What support and after-sales services are available?
EDDY Pump offers complete technical support, including engineering consultation, on-site commissioning, and operational training. Customers also receive access to application-specific pump curves, spare parts, and global service assistance to ensure reliable performance and long-term system value.
HD (Heavy Duty) Slurry Pumps / Dredge Equipment
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