... 1. OperationPrinciple WF series fine powder classifier machine is composed by upper chamber, airseparator, lower chamber, classifier wheel, discharging nozzles etc. Rawmaterials are ... withthe close-loop operation.3. Application RangeThis separator is dryair classifier, suitable for mom-viscous material, it can classify globular,flake ... .441.42*1.10*1.78 WF series fine powder classifier machine