Greystone showed new Aggre-Dry & Aggre-Spec V6 at AGG1 Expo

The Aggre-Dry FMW Screen is an innovative sand dewatering unit that combines
a fine material screw and dewatering screen to produce sand and gravel products with a moisture content as low as 8-13 percent, by weight, while using only 30 hp to wash and dewater up to 100 TPH.

The Aggre-Dry FMW Screen is an innovative sand dewatering unit that 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, while using only 30 hp to wash and dewater up to 100 TPH. The result is a caked, dry product that neither an inclined dewatering screw nor a vibratory screen can separately achieve.
 
   In its most innovative feature, the Aggre-Dry FMW Screen reintroduces the throughs from the screen back into the screw’s washing process, where the screw portion of the unit again pushes it to the dewatering screen, increasing the amount of salable product. GreyStone offers the unit in all of the company’s standard fine material washer sizes, from 36-inch x 28-foot to 84-inch x 38 foot.
 
   GreyStone’s Aggre-Spec V6 advanced reblending control system blends up to three spec products, including two spec products simultaneously, using single or twin tank controls. Its patented three-method Windows based system delivers up to 15 percent higher productivity than single-method programs. This exclusive GreyStone program automatically selects the most efficient process for re-blending, holding tight product specifications and reducing out-of-spec material. The user friendly Aggre-Spec V6 is available for all GreyStone classifier models and can be retrofitted to most existing classifying operation systems.
 
   GreyStone manufactures a complete line of field proven portable and semiportable washing/screening plants, sand classification tanks and systems, single and twin fine material dewatering screws, single and twin coarse material washers, log washers, advanced computer control systems, portable sand plants, water clarifiers, rotary and vibrating screens, portable conveyors and radial stackers, blade mills, dewatering screens, portable screening plants, twin jets, cutter heads and aggregate reclaiming systems.