Isakhiwo esikhethekileyo esidibanisa i-roller encinci ye-diameter kunye ne-diameter roller enkulu ifezekisa ukuthutha kunye namaxesha angama-2.5 ngesantya esikhulu. Ngenxa yokuba isantya setsheyini siphantsi, ukuqokelelana ngengxolo ephantsi kunokwenzeka.Isetyenziswa ngokubanzi kwindibano kunye neendawo ezizisebenzelayo zokudityaniswa kweebhetri zamandla amatsha, iinxalenye zemoto, iimoto, i-3C yombane kunye nezixhobo zasekhaya.