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Fine Material Washers

In MEKA Fine Material Washers separation is accomplished by hydraulic separation; using water to clean and classify by weight. Larger particles (Sand) weigh more so they sink and are collected in the bottom of the trough. They are discharged by steel spiral shaft with replaceable polyurethane or cast steel linings. The smaller lighter unwanted particles are floated to the surface and discharged over the weirs at the lower end of the machine.

Applications

Utilized to clean and dewater fine aggregates typically minus 12 mm or 5 mm (1/2’’ or 4mesh) to fine tune end products to meet specifications and to separate water soluble clay, silt, and micro sized fine particles. Available in both single and twin screw configurations, fine material washers are most often used after a wet screening operation to process products such as concrete, mason, mortar.

Why MEKA Fine Material Washers?
  • Maximum productivity

Capable to produce up to 725 mtph (800 stph) delivering extreme productivity where you need it most.

  • Can classify material up to 50 mesh (300 microns)

Large pool area provides maximum fines retention resulting in a more marketable product.

  • Very low energy consumption

Engineered with high efficiency drives,the resulting low power requirement reduces operating costs while increasing throughput.

  • Very low operation costs

Heavy duty steel plate construction provides years of operation

Fine Material Washers Technical Specifications

MFW 3625S

MFW 3625D

MFW 4432S

MFW 4432D

MFW 5434S

MFW 5434D

MFW 6635S

MFW 6635D

(Single Screw) (Single Screw) (Double Screw) (Double Screw) (Single Screw) (Single Screw) (Double Screw) (Double Screw) (Single Screw) (Single Screw) (Double Screw) (Double Screw) (Single Screw) (Single Screw) (Double Screw) (Double Screw)
Screw Diameter x Tube Length (mm x mm) Screw Diameter  x Tube Length (inch x feet) 917x7769 36''x25' 917x7769 36''x25' 1120x9802 44''x32' 1120x9802 44''x32' 1370x10060 54''x34' 1370x10060 54''x34' 1675x10760 66''x35' 1675x10760 66''x35'
*Capacity (mtph) *Capacity (stph) 20-90 25-100 45-180 50-200 35-160 40-175 70-315 80-350 60-250 70-275 125-500 140-550 90-360 100-400 180-725 200-800
Material Size (mm) Material Size (inch) 0-10 3/8" 0-10 3/8" 0-10 3/8" 0-10 3/8" 0-10 3/8" 0-10 3/8" 0-10 3/8" 0-10 3/8"
Power (kW) Power (HP) 15 20 2x15 2x20 18.5 25 2x18.5 2x25 30 40 2x30 2x40 45 60 2x45 2x60
Screw (rpm) Screw (rpm) 10-21 10-21 10-21 10-21 8-17 8-17 8-17 8-17 7-14 7-14 7-14 7-14 5-11 5-11 5-11 5-11
**Weight (kg) **Weight (lbs) 6500 14333 11700 25799 10500 23153 18850 41566 13950 30761 25000 55127 22000 48512 40250 88754
Water-100 Mesh (gpm) Water-100 Mesh (m3/h) 720 164 1250 284 1720 391 2800 637 2090 475 3700 842 2590 589 4375 995
Water-150 Mesh (gpm) Water-150 Mesh (m3/h) 320 73 640 146 760 173 1440 328 930 212 1750 398 1150 262 2100 478
Water-200 Mesh (gpm) Water-200 Mesh (m3/h) 180 41 360 82 460 105 810 184 575 131 935 213 650 148 1095 249

*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.

What is Fine Material Washers?

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.

Types of Fine Material Washers
The fine material washer is a washing equipment which consists of one or two shafts equipped with spirals in a tank at a certain inclination.
How Does Fine Material Washers Work?
Screw provides agitation motion which propel the settled heavier material upwards while the finer light material move back with the water.
Advantages of Using Fine Material Washers
- Accepts sizes up to 10 mm
- Successful sand cleaning with less water
- Great Achievement in dewatering
- Low operation and investment costs
Fine Material Washers Processes Applications

Primarily the removal of impurities such as clay and dewatering of sand.

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