MEKA Fine Material Washers mainly consist of a washing/transport screw and a separation tank. In the separation tank, clay within the material is removed using hydraulic separation, while the screw conveyor dewaters the material for final discharge.
Lightweight and unwanted particles rise to the surface and are discharged through overflow weirs. These systems wash fine aggregates up to 10 mm in size and transfer the cleaned material to the next stage, separating it from water.
Dirty water is directed by adjustable weirs at the rear of the tank and drained via a discharge pipe.
Compared to competitors, MEKA Fine Material Washers offer a robust and heavy-duty body structure, effective fine material classification, low maintenance costs, and extended service life.
Washing of fine aggregates and sand (0–10 mm) from screen undersize
Improving the quality of natural and crushed sand
Removing silt and clay from fine materials
Producing clean sand for plaster, concrete, and asphalt applications
Pre-dewatering washing process
Sand and fine material washing in mining and industrial operations
Recycling applications
MFW 3625S |
MFW 3625D |
MFW 4432S |
MFW 4432D |
MFW 5434S |
MFW 5434D |
MFW 6635S |
MFW 6635D |
|
(Single Screw) | (Double Screw) | (Single Screw) | (Double Screw) | (Single Screw) | (Double Screw) | (Single Screw) | (Double Screw) | |
Screw Diameter x Tube Length (mm x mm) | 917x7769 | 917x7769 | 1120x9802 | 1120x9802 | 1370x10060 | 1370x10060 | 1675x10760 | 1675x10760 |
*Capacity (mtph) | 23-90 | 45-180 | 35-160 | 70-315 | 60-250 | 125-500 | 90-360 | 180-725 |
Material Size (mm) | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 |
Power (kW) | 15 | 2x15 | 18.5 | 2x18.5 | 30 | 2x30 | 45 | 2x45 |
Screw (rpm) | 10-21 | 10-21 | 8-17 | 8-17 | 7-14 | 7-14 | 5-11 | 5-11 |
**Weight (kg) | 6500 | 11700 | 10500 | 18850 | 13950 | 25000 | 22000 | 40250 |
Water-100 Mesh (gpm) | 720 | 1250 | 1720 | 2800 | 2090 | 3700 | 2590 | 4375 |
Water-150 Mesh (gpm) | 320 | 640 | 760 | 1440 | 930 | 1750 | 1150 | 2100 |
Water-200 Mesh (gpm) | 180 | 360 | 460 | 810 | 575 | 935 | 650 | 1095 |
*Capacity values are indicative only, results may vary depending on feed gradation, silt, clay content,density, amount of water used, equipment configuration and application.
**Weights shown include drive motor package, support legs, maintenance platform, inlet and outlet chutes.
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Fine Material Screw Washers, also called sand screws or spiral classifier, are equipment which are used to dewater, classify and wash for removing excessive dust, the impurities and producing high-quality sand. They also have a light scrubbing effect and this help to remove clays, silts and unwanted contaminants.
Primarily the removal of impurities such as clay and dewatering of sand.