The "right" blender (or mixer) for a dry bulk material application is determined by considering all of these design factors:

   • The abrasiveness of the product
   • The fragility of the product
   • Density disparities and particle size range of the ingredients
   • The throughput required
   • The frequency and degree of cleaning
   • Cross contamination concerns
   • Heating or cooling requirement
   • Vacuum rating, for degassing or capture of VOCs
   • Pressure rating, for inerting or reaction
   • Materials of construction: mild steel, stainless, or other alloys
   • Finish required: industrial, sanitary for food, sanitary for pharma