Sturtevant Inc. announced the sale of its 5,000th air classifier, more than any other air classifier manufacturer, according to the company. Air Classifier Number One was sold to Reynolds Tobacco Co. of Winston-Salem, N.C., and shipped on Sept. 18, 1919. This early design still has features recognizable today in Sturtevant’s Whirlwind Air Classifier including an internal fan. “Significant changes have taken…
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