Sturtevant Air Classifier

The Sturtevant Whirlwind® Air Classifer is specifcally designed to separate animal byproduct feeds including poultry meal, porcine MBM, beef MBM, lamb MBM, and fish  meal into two fractions. The first fraction, typically the finer discharge, is the premium product containing lower ash with higher protein and mineral content than the coarse discharge. The coarse product with regular ash and regular protein may be sold as poultry meal feed or organic fertilizer, or can be blended with other feed ingredients allowing for a wide variety of custom formulations suitable for particular customer needs.

The Whirlwind® Air Classifier incorporates a self-contained fan and rejecter blade classification system. Its internal fan design does not require cyclones, air locks or dedicated baghouse for product collection of particles in the range of 100 to 400 mesh. Completely self-contained, requires no process dust-collection equipment.
For over a decade, Sturtevant Whirlwinds® have been helping renderers and animal
protein companies set the standard in making quality animal and pet food ingredients
while allowing animal feed companies to create an increased variety of cost effective and
nutritional pet foods


ElementsFeedFine DIscharge
(Low ash/High protein)
Coarse Discharge
(Regular Ash/protein)
Moisture3-6%3-6%10% max
Fat10-14%8-13%11% max
Advantage : 5-7% ash reduction & 3-5% protein increase

Contact us for more specific information. We are at your disposal.

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