The Importance of a Hammer Mill - Classifier Milling SystemsSep 8, 2017 . Working with different materials of contrasting strengths and tenacities, a hammer mill should be extremely durable and entirely dependable. Also, hammer mills perform steeply heavy-duty labor causing unavoidable minor damages and this causes the mill to slightly malfunction or not function properly.hammer mill blog,Hammermill Air Relief Systems - Insta-Pro InternationalApr 28, 2016 . Awhile back, in our blog about Particle Size Reduction, we discussed several particle size reduction methods. These included rollermills, pulverizers, and hammermills. Some limitations of the hammermill included making the finer grind sizes needed for smaller pellets and milling efficiency for larger.