Milling and homogenization


This field covers the nearly contamination-free processing (dry, wet) of nano-disperse and colloid-disperse raw materials in aqueous or organic solvents with adjusting tailored particle and suspension properties under inert (nitrogen) or explosion-proof conditions.

Products and services offered


  • Analysis of the milling behavior of nano-disperse and colloid-disperse solid mixtures by nearly contamination-free wet and dry milling
  • Dry milling and classification in countercurrent mill (nitrogen)
  • Dispersant screening for the optimization of suspensions in cooperation with the working group Powder and Suspension Characterization (solids content, surface charge, pH value, viscosity)
  • Analysis of polymer effects (dispersant, binder, lubricant) under the conditions of high shear stress (milling)
  • Wet milling in laboratory and pilot scale (grinding range 0.5–20 l) by selecting adequate operating parameters for the required particle size distribution
  • Use of process-implemented measurement equipment for suspension characterization (particle size distribution, pH value, viscosity, surface charge of particles)
  • Definition of parameters for up-scaling
  • Characterization of abrasion properties of grinding balls in various attritor mills under standardized conditions


Technical equipment


  • Horizontal agitated ball mills with ceramic or polyurethane lining (volume of grinding chamber: 0.2 l; 1 l; 4 l [explosion-proof] and 20 l), Netzsch FMT
  • Fluidized bed opposed jet mill (nitrogen, vulkollan lining), Hosokawa Alpine AG
  • Annular gap-type mill MS 18 with different linings, Fryma-Koruma GmbH
  • Disc mill, Fritzsch
  • Attrition mills (volume of grinding chamber: 0.75 l; 25 l; explosion-proof), Fritzsch, Tisoma
  • Drum mill (100 l), Gerhards GmbH
  • Cutting mill, Fritzsch
  • Jaw breaker, Fritzsch
  • Grinding balls for different ceramic or metallic material systems


Examples and references


  • Wet and dry milling of disperse raw materials and mixtures (ceramic, metal, composites
  • Milling of natural minerals (lime stone, talc, carbon)
  • Conditioning of sintered intermediates
  • Deagglomeration and real comminution in the nano-disperse range (project NanOnLine)