I-roller track-type rack yenziwe nge-roller track, i-roller, ikholomu eqondile, i-cross beam, i-tie rod, isitimela se-slide, itafula le-roller nezinye izingxenye zemishini yokuzivikela, idlulisa izimpahla ukusuka phezulu kuya ekugcineni okuphansi ngamarola anomehluko othile wokuphakama. , nokwenza izimpahla zishelelezi ngamandla azo adonsela phansi, ukuze kuzuzwe imisebenzi “yokuqala kokuphuma kuqala (FIFO)”.