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The Advanced Classification System

The Advanced Classification System (ACS) is a high efficiency air classifier first introduced in 1992 and granted a US Patent in November 1994. Air classifiers are used to separate dry fine powders based upon particle size, particle shape and also density. In general air classifiers can be used effectively in the range of 1mm to one micron.
RSG Inc manufactures many styles and sizes of air classifier to suit varying applications from high density metal powders to ultra light weight mineral fillers, synthetics and fine chemicals.
Air classifiers are available for laboratory applications requiring only a few pounds per hour feed rate, all the way up to large industrial capacities of 500 tph or more.

This air classifier design incorporates the following advanced features:

  • External air purged classifier rotor seal insuring clean topsize cuts.

  • Outboard bearings for ease of maintenance.

  • Easily replaceable air classifier blades.

  • Open or closed (re-circulating) air circuits.

ACS-250 air classification system


Lease & Rental Air Classifiers

RSG Inc maintains several lease and rental air classification systems available for short term projects.

Please call Chris Martin 256 378 3836 x 11 for current availability.



Mailing address: 

Shipping address: 



256-378-3836 (sales Chris Martin ext. 11)


P.O. Box 2158, Sylacauga, AL 35150 U.S.A.

119 Crews Lane, Sylacauga, AL 35151 U.S.A.


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