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8/6 Dredging Gravel Pump – Product Overview

8/6 Dredging Gravel Pump – Product Overview

The 8/6 Dredging Gravel Pump is a heavy-duty centrifugal slurry pump designed for high-efficiency sand, gravel, and mud transportation in dredging, mining, and industrial applications. The designation "8/6" refers to its 8-inch suction inlet and 6-inch discharge outlet, ensuring optimal flow rates for handling large solid particles.

Constructed with high-chrome alloy or wear-resistant materials, this pump is engineered to withstand abrasive and corrosive slurries, making it ideal for harsh working environments.

Technical Specifications (Typical Model)

The most critical feature of a sand dredge pump is its “high-chrome alloy construction”. The pump's impeller, casing, and wearing liners are typically made from Cr27, Cr30, or A05 high-chrome white iron, offering exceptional hardness and wear resistance.

Hardness: Typically 58-65 HRC (Rockwell Hardness), ensuring long service life even under extreme abrasion.

Impact Resistance: The high-chrome material can withstand the impact of large solid particles.

Corrosion Resistance: Performs well in both saline and acidic environments.

Superior Dredging Ability

Handles “high-density slurries” (up to 60-70% solids concentration).

Efficiently pumps “sand, gravel, silt, and other sediments”.

Capable of dredging “deep underwater” (up to 30 meters or more, depending on pump power).

Easy Maintenance

Modular Design: Allows quick replacement of wear parts (impeller, liners, seals).

Accessible Components: Easy disassembly for cleaning and servicing.

Long Service Intervals: Reduced downtime due to high durability.

High Performance & Efficiency

High Flow Rates: Can move hundreds to thousands of cubic meters per hour.

High Head Pressure: Capable of “long-distance slurry transfer” (up to several kilometers).

Energy-Efficient Operation: Optimized hydraulic design reduces power consumption.

Long-Distance Transfer & High Pressure

Pipeline Dredging: Suitable for long-distance slurry transport (1km to 5km+).

High-Pressure Capability: Some models can generate pressure up to 1.5 MPa for demanding applications.

Applications of Sand Dredge Pumps

Sand dredge pumps are used in various industries, including:

River & Lake Dredging

Dredging sand from river & lake.

Removing sediment to restore water depth.

Preventing flooding by improving water flow.

Mining & Mineral Extraction

Extracting sand, gold, iron ore, and other minerals.

Transporting tailings and slurry in processing plants.

Land Reclamation

Pumping sand to create new land in coastal areas.

Beach nourishment projects.

Construction & Tunneling

Dewatering foundation pits.

Handling slurry in tunnel boring operations.

Port & Harbor Maintenance

Keeping shipping channels clear of sediment.

Dock construction and maintenance.

Advantages Over Conventional Pumps

Sand dredge pumps are essential for heavy-duty dredging operations, offering unmatched durability, high performance, and low maintenance. Their high-chrome construction ensures longevity in abrasive environments, while their high-pressure and long-distance capabilities make them ideal for mining, construction, and marine projects.

Whether for river dredging, mining, or land reclamation, a high-quality sand dredge pump provides reliable, efficient, and cost-effective slurry transportation. Investing in a wear-resistant, high-performance dredge pump ensures maximum productivity and minimal downtime in demanding applications.