... dyeingPigment …Specification:Sphere: φ1,φ2,φ3,φ5,φ7,φ10,φ12,φ15…φ55mmCylinder: φ3x3, φ5x5, φ7x7, 10x10, 12x12mm Criteria in Selecting Size ... media are used in many attrition mill applications, whereas 10-15 mm may be a good start for a lab ball mill ... small-media mills, media sizes are typically smaller than 2 mm.4. Another important criterion in selecting media size is the ...