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MCW Series
Coarse Material Washer

MEKA Coarse Material Washers are used to remove impurities such as silt, soft clay, and organic or inorganic particles from aggregates. Typically used after a rinsing screen in the final washing stage, the MCW series is designed to clean gravel and crushed stone up to 75 mm (3'') in size. Depending on the required capacity, these washers are available in both single and double shaft configurations, delivering maximum cleaning performance that sets them apart.

Want to produce cleaner and more valuable aggregates?
Discover MEKA Coarse Material Washers.

Clean large agragas most effectively

MEKA Coarse Material Washers are specifically designed to efficiently remove clay, silt, and other contaminants adhering to the surfaces of aggregates and ores. With their twin-shaft helical paddle structure, they transport material upward with a powerful scrubbing action during the washing process. At the same time, the directed water flow flushes out fine particles and eliminates remaining residues in the final rinse line.

The Ni-Hard paddles used in MCW Series Coarse Material Washers offer high wear resistance, while the custom gearbox ensures superior performance under high impact loads. The body angle is adjustable between 0° and 5°, allowing the washing time to be optimized for different applications, ensuring maximum cleanliness.

Compared to competitors, MEKA Coarse Material Washers stand out with their significantly heavier and more rigid body structure and easily replaceable wear parts, offering low maintenance costs and long service life. It is an ideal solution for removing hard and sticky clays, plastic content, and organic materials.

Applications

Washing of coarse aggregates and sand up to 75 mm coming from under-screen
Improving aggregate quality
Removing silt and clay from coarse material
Pre-washing process before dewatering
Recycling applications

Coarse Material Washer Technical Specifications - MEKA

Coarse material washers are used to remove a limited amount of dirty material from the coarse aggregate. This material includes very water-soluble slimes, silts, soft clay, and organic particles.
Coarse Material Washer Technical Specifications

MCW 3618S

MCW 3618D

MCW 4420S

MCW 4420D

(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 (inchxfeet) 928x5600 36x18 928x5600 36x18 1118x6382 44x20 1118x6382 44x20
*Capacity (mtph) *Capacity (stph) 130-160 150-175 272-316 300-350 180-230 200-250 360-450 400-500
Material (mm) Material (inch) 0-65 0-2⅟2 0-65 0-2⅟2 0-75 0-3 0-75 0-3
Power (kW) Power (HP) 30 40 2x30 40 37 50 2x37 50
Screw (rpm) Screw (rpm) 16-32 16-32 16-32 16-32 13-26 13-26 13-26 13-26
**Weight (kg) **Weight (lb) 6500 14333 10800 23815 9000 19846 15500 34179
Water (m3/h) Water (gpm) 90-135 400-600 160-220 700-900 110-170 500-750 200-250 900-1100

*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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Coarse Material Washer Information Form

What is Coarse Material Washer?

Coarse Material Washer is a washing equipment consist of shafts with paddles and spiral screw flights to provide scrubbing and agitation.

They effectively remove soluble clays in gravel or aggregate that cannot be removed by wet screening alone. They can also be used to remove floating organic waste material such as vegetation.

Types of Coarse Material Washer
The coarse material washer is a washing equipment which consists of one or two shafts equipped with paddles and spirals in a tank at a certain inclination.
How Does Coarse Material Washer 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 Coarse Material Washer

- Accepts sizes up to 75 mm
- Successful material cleaning with less water
- Great Achievement in dewatering
- Low operation and investment costs

Coarse Material Washer Processes Applications
In particular the removal of impurities such as clay and silt in the sand and the supply of sand in the desired specifications.
Experience in manufacturing plants and equipment in the crushing, screening, mining and ready-mixed concrete industries since 1987
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We conduct efficiency tests in a computer environment and after production with expert R&D engineers.
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To ensure your production is uninterrupted, critical parts are always available in our spare parts stock.
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MEKA Coarse Material Washer
Blade Mill Options
We build the ideal coarse material washer for your needs with shaft options in paddle-only or paddle + screw combinations.
Paddle Material Options
15 Cr and Ni-Hard paddles are available depending on your durability needs.
Paddle Arrangement Options for Different Needs
MEKA log washer paddles can be arranged linearly or helically based on operational requirements.
Structural Options
MEKA Coarse Material Washers can be equipped with platforms, shaft guards, and base supports to meet structural needs.
Electrical Panel Options
MEKA washers can be equipped with a direct-on-line panel for low maintenance or a VFD panel for energy-efficient, flexible control with soft start/stop.
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