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Advances in Pin Mill Technology

By Sam Rajkovich, Sturtevant |

Improvements provide finer grinding at lower energy costs compared to air-swept classifying mills that have long reigned supreme in particle-size-reduction efforts For decades, the ultimate performance in fine mechanical milling performance has been provided by the air-swept classifying mill (ASCM). Perfectly suited to a broad range of non-abrasive milling applications, the air-swept classifying mill is a single machine used to carry out a two-step process. The process both reduces particle size and limits the output of particles using mechanical classification — only delivering those particles of a predetermined, easily controlled, fine size as the finished product exiting the mill. Historically, this technology has offered performance advantages over other options, in terms of its ability to deliver highly controlled particle sizes for a broad range of applications, from powder coatings to paper fillers. Until recently, the air-swept classifying mill has been widely held as the gold standard in milling technology. Today, those processors seeking to upgrade or purchase new milling equipment have several different types of impact milling technologies to select from. The pin mill is one option that has seen major advancements over…
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