... . high classification 1. OperationPrinciple WF series fine powder classifier machine is composed by upper chamber, airseparator, lower chamber ... separator is dryair classifier, suitable for mom-viscous material, it can classify globular,flake type and fibre ... granule. It has been widely utilized in chemicalindustry, construction material, electronics, pharmacy, pesticide, dope,dyestuff, light industry, ...