12 inch Sand Mining Dredger
The 300mm Cutter Suction Dredger design shares core engineering with our 12-inch models, particularly in hydraulic efficiency and spud carriage stability. When you step up to a dedicated 12 inch Sand Dredging Ship, you gain a purpose-built mining platform capable of sustained production in abrasive sand and gravel deposits. The 12 inch Dredger with 12m Dredging Depth is particularly popular for medium-depth river and lake operations, providing a balance between digging reach and portability. For operators who demand fingertip control and reduced maintenance cycles, the Full Hydraulic 12 inch Dredger eliminates complex mechanical drives, using a closed-loop hydraulic system to power the cutter head, swing winches, and pump drive with smooth, responsive precision. This integrated approach ensures that the 12 inch Sand Mining Dredger delivers high uptime percentages even in the most challenging extraction sites.
The 12 inch Sand Mining Dredger excels in aggregate recovery, channel maintenance, and land reclamation projects where reliable solids transport is non-negotiable. Built around a heavy-duty hull with modular pontoon construction, this equipment can be disassembled for road transport without compromising structural integrity. The dual-spud system and advanced anchoring arrangement allow continuous work in moderate currents while keeping the cut profile consistent. Operators benefit from the fully outfitted control cabin, which offers 360-degree visibility, integrated pump controls, and real-time concentration monitoring, turning a complex dredging operation into a manageable routine.
Key Specifications at a Glance
- Dredge pump discharge diameter: 12 inches (300 mm), interchangeable with wear-resistant alloy or polyurethane liners
- Maximum solids output: up to 1,200 m³/h depending on material and pipeline length
- Cutter power: 180–250 kW hydraulic drive, suitable for compacted sand, light clay, and gravel
- Standard dredging depth: 6–12 meters, configurable with extended ladder for deeper profiles
- Total installed power: 480–650 kW, featuring a marine diesel engine with emission-compliant packages
- Discharge distance: up to 1,500 meters via HDPE floating pipeline, with optional booster stations for longer runs
- Spud carriage travel: 1.5 meters, improving step advancement and cut precision
- Transport weight: approximately 35–45 tons, depending on optional equipment and pontoon configuration
Detailed Technical Parameters
| Parameter | Value / Range | Details |
|---|---|---|
| Pump Type | Single-stage centrifugal, closed impeller | Hardened wear parts, flow passage ≥150 mm |
| Engine Make & Model | Cummins KTA19-M or equivalent | Marinised, continuous duty rating |
| Max Mixture Flow | 2,000 m³/h | At 25% concentration (sand/water) |
| Cutter Diameter | 1,200–1,500 mm | Replaceable teeth for varied geology |
| Swing Winches | 2 × hydraulic-driven, 80 kN line pull each | Variable speed with proportional control |
| Ladder Length | 8–14 meters | Pivoted at main pontoon, adjustable depth |
| Instrumentation | Flow meter, density gauge, GPS positioning | Customisable SCADA integration |
| Accommodation | Optional crew cabin with HVAC | Up to 4 berths for multi-shift operations |
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