Opposing a particle’s aerodynamic drag force with centrifugal force, air classifies create narrower size distribution and finer separations than conventional screeners. All production models utilize an adjustable forced vortex to provide uniform results while adapting to a range of feed variations. The product line also includes the “Mini-Split” for laboratory-scale or small, batch sized separations.
Prater’s air classifiers offer a wide array of features to ensure superior performance throughout its use. Some of these features include very narrow particle distribution, easy control of mean particle size and cut point, pre-classification with cyclonic air stream, separate dry free-flowing product from 150 – 1 micron and an adjustable secondary air system for the most precise cuts. The design behind our air classifiers ensures feed material enters the classifying vortex unimpeded by re-circulating coarse fractions.
The MAC forced vortex units process dry materials to an unmatched fineness and uniformity over a wide range of feed variations, either in closed-circuit with a conventional milling system or as independent “stand-alone” systems that incorporate feeder, fan and product collection equipment.
The Mini-split Air Classifiers were primarily developed for research “semi-tech” and small-scale production applications. An ideal choice for small workspaces, its low-noise capabilities reduce distractions while its compact size ensures efficient portability.