DP PULVERIZERS MILL SELECTION GUIDE Jet Mill vs Air Classifying Mill vs Cryogenic Grinding Right Particle Technology Engineering THE WRONG MILL COSTS MORE THAN THE RIGHT ONE In particle size reduction, selecting the wrong technology doesn’t just impact performance—it impacts: Product quality Throughput Energy consumption Maintenance costs Process stability DP Pulverizer Air Classifier Mill Each milling technology serves a specific purpose. Understanding when to use Jet Milling, Air Classifying Milling (ACM), or Cryogenic Grinding is critical to achieving optimal results. At DP Pulverizers, we...

the three core technologies jet milling (fluid energy grinding) Best For: • Ultra-fine particle sizes • Heat-sensitive materials • Contamination-sensitive applications • High-velocity air or steam accelerates particles • Particle-on-particle collision causes size reduction • No moving parts in grinding zone • Zero contamination risk • Capable of sub-10 micron sizes classifying mill (acm)Best For: • Controlled particle size in mid-range micron sizes • Continuous, high-throughput processing • Applications requiring tight PSD without ultra-fine grinding • Impact grinding + dynamic air classification...

cryogenic grindingBest For: • Sticky, greasy, elastic, or heat-sensitive materials • Polymers, rubber, spices, high-fat products • Material is cooled with liquid nitrogen • Becomes brittle • Fractures cleanly under impact • Prevents smearing and clogging • Preserves volatile compounds • Enables grinding of otherwise impossible materials • Improves flowability side-by-side comparison Parameter @ www.dppulveriser.com www.dpmills.com

WHEN TO USE EACH TECHNOLOGY USE A JET MILL WHEN: You need ultrafine particles (<10 microns) Product purity is critical Heat cannot be introduced Contamination must be eliminated Typical industries: Pharma, battery materials, advanced chemicals USE AN ACM WHEN: You need controlled particle size (10–150 microns) Throughput is critical You want a single-step grinding + classification system Typical industries: Chemicals, food, minerals, agrochemicals USE CRYOGENIC MILLING WHEN: Material is sticky, greasy, elastic, or heat-sensitive Product smears or clogs at ambient conditions You need to preserve...

COMMON MISTAKES IN MILL SELECTION APIMicronization Goal: Sub-10 micron, no contamination Goal: Tight PSD, high throughput Results: broad PSD, inefficient grinding Results: poor flow, process instability Results: melting, smearing, failure Results: degraded product and inconsis tent output Goal: Fine powder without melting ACM / Jet ^ Not viable Result: Cryogenic Grinding Goal: Preserve aroma and oils Ambient grinding ^ destroys product Result: Cryogenic Grinding Goal: Tight PSD, ultra-fine Result: Jet Mill (or ACM depending on target size) At DP Pulverizers, we don't start with equip ment. °...

beyond individual machines Most processes require more than one step. DP integrates: One partner. One system. One optimized process. There is no “best mill.” There is only the right Choosing correctly means: * • Higher product quality Lower operating costs Greater process stability Choosing incorrectly means: fConstant problems Increased cost Lost production @ www.dppulveriser.com www.dpmills.com

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