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      Aggregate Washing | Coarse Materials Washers

      Coarse Materials Washers

      GreyStone coarse material washers 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.

      Specifications:

      Single Screws

      SizeScrew
      Diameter
      Tub
      Length
      Tons/hrRPMhpMax
      Mat'l Size
      Water Req. G.P.M.Empty Est. Weight
      24"x18'24"18"60-7540152"300-4007,500
      30"x18'30"18"100-12535202"300-5008,600
      30"x24'30"24"100-12535252"250-50010,550
      36"x18'36"18"150-17530252"400-60010,880
      36"x28'36"28"150-17530302"400-60013,830
      44"x20'44"20"200-25026302"500-75014,200
      44"x32'44"32"200-25026502"500-75018,300

      Twin Screws

      SizeScrew
      Diameter
      Tub
      Length
      Tons/hrRPMhpMax
      Mat'l Size
      Water Req. G.P.M.Empty Est. Weight
      30"x18'30"18"200-250352-202"500-70013,080
      30"x24'30"24"200-250352-252"600-100018,900
      36"x18'36"18"250-300302-252"700-120016,000
      36"x28'36"28"250-300302-302"700-120021,900
      44"x20'44"20"450-500262-302"1000-150027,000
      44"x32'44"32"450-500262-502"1000-150035,000

      Features & Benefits:

      • The shaft-mounted gear reduction is totally enclosed within an oil-bath gear box and provides easy service
      • Motor and drive assembly parts required for routine maintenance are standard, off-the-shelf components for easy replacement
      • The heavy stub is mirror-smooth, heat-treated shafting is fitted into a hard stainless steel spacing sleeve
      • Adjustable screw shaft allows control the clearance between the belly pan and screw flights
      • Ni-Hard Wear Shoes as standard.
      • For tougher washing requirements, more paddles can be added to the screw shaft
      • Externally mounted pillow block bearings that are standard off-the-shelf components for easy replacement
      • Strong and rigidly constructed to provide years of maintenance-free service
      • Dirt and other extraneous matter is carried to the top and forced out with the overflow
      • Heavy-duty skid frame allows movement through pulling into place instead of using a crane

      Speak to an expert

      Call us now on +44 (0) 2476 405 100 or request a call back

      John Bracken
      Sales Director – Duo Equipment