GreyStone has the broadest line of dependable washing and dewatering equipment, which includes the highly portable Aggre-Washer™ plants and log washers; single and twin, fine and coarse material dewatering screws; single-deck twin vibrator dewatering screens; and the innovative Aggre-Dry® Washer. Producers can choose from a variety of plants and equipment to customize design configurations for meeting specific application, production and material requirements from PA GreyStone dealer CB Con-Agg.
GreyStone coarse material washers from CB Con-Agg feature a unique adjustable screw shaft design, giving producers precise control over product specifications. The line consists of both single and twin screw models that process up to 2" feed material. A variety of screw diameter sizes, from 24" to 44", are available with production capacities up to 500 TPH.
With single and twin auger designs available, GreyStone dewatering screws are built for economical, long-life production. From GreyStone’s externally mounted pillow block bearings to oil-bath sealed gear reducer drives, most GreyStone components are standard, off-the-shelf items to facilitate maintenance and reduce downtime. With a low-profile, custom-built design, GreyStone’s E-Series dewatering screws range in size from 12" × 14' to 36" × 25' and are capable of producing up to 200 TPH. Our larger, standard series are available in sizes from 36" x 28' to 84" x 38' and can produce up to 1000 TPH.
GreyStone's Dewatering Screen is available in three different models—the DS-488 (4-ft × 8-ft), DS-6010 (5-ft × 10-ft) and DS-7212 (6-ft × 12-ft)—to efficiently dewater up to 300 TPH with no runoff or water pools. While most concrete and masonry sands typically retain from 18 to 24 percent moisture, the GreyStone Dewatering Screen cuts that moisture down to as low as 10 percent—providing salable material in less than a day.
This innovative 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—while using only 30 HP to wash and dewater up to 100 TPH.
Customized to meet your requirements, GreyStone Aggre-Washer and Screening Plants from CB Con-Agg are the most portable and diverse plants on the market. Producers can equip these versatile washing and screening plants with single or twin classifier screws, urethane or Ni-Hard wear shoes, a variety of horizontal or inclined screens and manual or hydraulic leveling devices.
Delivering superior scrubbing action, producers choose GreyStone log washers to clean clay and silty material from their spec aggregate product. Featuring a unique spiral paddle shaft, our log washer design eliminates intermittent shock loading on the shaft and gearbox and delivers a continuous material motion, resulting in a cleaner final product.
Clean mud and soluble clay from gravel feed material with GreyStone blade mill washers. Strategically located, spirally positioned paddles and full-diameter flights provide the necessary aggregate abrading and washing action to deliver cleaner spec product, while maintaining required production levels.
