Sand Classification

GreyStone's Aggre-Spec III computer-aided sand re-blending system features a patent-pending, 2-method control system that delivers higher productivity than single-method programs.

This exclusive GreyStone program automatically selects the most efficient process for re-blending up to 3 products, including 2 spec products, simultaneously.

The user-friendly Aggre-Spec III allows multi-tasking with other Windows-based programs. Aggre-Spec III is available for all GreyStone classifier models and can be retrofitted to most existing classifying operation systems.

Features & Benefits:

  • Patented, 3-method re-blending system delivers up to 15% higher productivity than single-method programs.
  • Simple, "single-step" product spec changes eliminate wasted time searching for hidden keys.
  • Automatically monitors feed material to warn the operator of potential product mix or mechanical problems.
  • Holds to tight product specifications and reduces the possibility of out-of-spec material.
  • Unlimited mix design storage capacity.
  • Multi-tasking capabilities with other Windows-based programs while re-blending spec sand products.

Classification Tank Models:

  • Stationary Tanks
    GreyStone stationary Aggre-Spec product line includes 10 classifier models ranging in size from 8 ft x 20 ft to 12 ft x 48 ft. Stationary structures offer from 6 to 11 classifying stations with 3 cells, capable of producing up to 3 products at one time.
  • Semi-Portable Classifiers
    GreyStone semi-portable Aggre-Spec classifying systems feature a modular, low-profile construction and stack-up design for quick installation. The line includes 18 classifier models ranging in size from 8 ft x 24 ft to 12 ft x 48 ft. Semi-portable structures offer from 7 to 11 classifying stations and produce up to 820 TPH.
  • Portable Classifiers
    GreyStone fully portable Aggre-Spec classifying systems feature a low-profile design for quick transport and installation. The line includes 8 classifier models ranging in size from 8 ft x 24 ft to 10 ft x 40 ft. Portable structures offer from 7 to 11 classifying stations and produce up to 350 TPH.

Specifications:

Classifier Size Screw Size No. of Axles/Tires Screw Capacity TPH No. of Stations No. of Cells Estimated Weight
8' x 24' Twin 36" x 25' E 2/8 200 7 3 50,000
8' x 28' Twin 36" x 25' E 2/8 200 8 3 51,000
8' x 32' Twin 36" x 25' E 2/8 200 9 3 52,000
8' x 32' Twin 44" x 32' 3/12 350 9 3 73,500
10' x 28' Twin 44" x 32' 3/12 350 8 3 81,000
10' x 32' Twin 44" x 32' 3/12 350 9 3 86,000
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