Classifier and Screen Efficiency Calculator Sub Model A, Classification efficiency Model Input Model Output Classification efficiency Classifier overflow, dry tonnes/day ore Mesh of separation of classifier (mesh) 65 Wt.% of ore in feed finer than the mesh of separation Wt.% of ore in the sized product (overflow)finer than the mesh of separation Sub Model B, Screening formula Model Input Model Output Mesh of separation (m.o.s), mesh Recovery of undersize through the screen or R, wt% recovery of fines Feed, wt% coarser then m.o.s a Efficiency where undersize is desired product or E, % screen efficiency Feed, wt% finer then m.o.s b Efficiency where oversize is desired product or E, %screen efficiency Oversize, wt% coarser then m.o.s c Overall efficiency of the screening, % Oversize, wt% finer then m.o.s d Undersize, wt% finer then m.o.s f Disclaimer