Ba équipements ya triage ya gravité esalemaka mingi na production pona ko classer cuivre, argent, étain, tungstène, tantalum, niobium, titane, zirconium, minerais primaires na ba placeurs ya chrome.
Moyen oyo basalelaka na . Machine ya jig ekoki kozala mayi, mpe tango mayi esalelami lokola milieu ya triage, babengaka yango jigging hydraulique.Ba concentrateurs na biso ya ba jigs ezali na écoulement ya mayi oyo ezali ko pulser, oyo ebongisaka bosikisiki ya bokabuani na ba applications ndenge na ndenge.