GreyStone Inc.

Aggre-Dry Washer

The Aggre-Dry Washer sand dewatering unit combines a fine material screw and dewatering screen to produce sand and gravel products with a moisture content as low as 8 to 13 percent, by weight. A standard GreyStone inclined single-spiral fine material washer (FMW) initially dewaters the material, before the vibratory dewatering screen further removes moisture. Produces a caked, dry product that neither an inclined dewatering screw nor a vibratory screen can separately achieve. Re-introduces the throughs from the screen back into the screw's washing process, increasing the amount of salable product. Uses only 30 hp to wash and dewater up to 100 TPH. Available in sizes to handle the production of 100, 200, 300 and 400 TPH.

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