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Machinery & Equipment Company (M&E) offers used Air Classifying Mills (ACM Mills) designed for precise size reduction and particle classification in a single system, widely used in chemical, pharmaceutical, food, mineral, and powder processing applications. ACM mills utilize high-speed rotor impact combined with an integrated air classifier to control particle size distribution, producing fine and uniform powders while minimizing over-grinding and heat generation. These systems are ideal for processing materials such as pigments, resins, polymers, minerals, spices, sugar, and active pharmaceutical ingredients. Available configurations include carbon steel and stainless steel construction, with options for sanitary designs, explosion-proof systems, and variable speed controls. Inventory typically includes equipment from leading manufacturers such as Hosokawa Micron, Mikro Pulverizer, Sturtevant, Prater, Munson Machinery, Bauermeister, and PPS Air Classifier Mills, known for reliable performance and tight particle size control. Contact M&E to discuss throughput, target micron size, material characteristics, and system integration requirements to match the right ACM mill for your application.