Imishini yokuphakela isetshenziswa ekukhiqizeni ukudla kwezilwane ukucubungula okusanhlamvu nezinye izithako zibe ukudla kwezilwane.Ama-feed rolls ayingxenye ebalulekile yomshini ochoboza, ugaye, futhi uhlanganise izithako zokuphakela.
Amarola afaka ingcindezi namandla okugunda ukuze aphule izinto ezisetshenziswayo.Angaba nokwakheka okuhlukile kwendawo kanye nosayizi begebe kuye ngosayizi wezinhlayiyana ezidingekayo zokuphakelayo okuqediwe.Izinhlobo ezijwayelekile zamarola zihlanganisa amarola acijile, amarola abushelelezi, namarola akathayela.
Ama-roller okuphakelayo ngokuvamile enziwa ngama-alloys ensimbi aqinile ukuze amelane namandla kanye nokuguga okuhilelekile ekucubunguleni ukudla.Amarola ashayelwa amamotho kanye nama-gearbox ngesivinini esihlukene ukuze aqhubekisele phambili ukudla emshinini.
Ukuvunyelwa phakathi kwama-roller kungalungiswa ukuze kuzuzwe ukunciphisa usayizi wezinhlayiyana ezifiselekayo zezithako zokudla.Ama-roller avame ukubhangqwa nozibuthe, izisefo, nezinye izakhi ukuze kukhishwe izinsalela zensimbi nokuhlukanisa izinhlayiya.
Idizayini efanele yerola, isivinini, kanye nezilungiselelo zegebe zibalulekile ukuze kuzuzwe amazinga okuphunyuka okuqondiwe, ukusetshenziswa kwamandla okuphansi, kanye nekhwalithi yokuphakelayo ephelele ngokosayizi wezinhlayiyana, ukuxubana, nokuqina kwe-pellet.Ukugcinwa njalo kwama-roller nakho kubalulekile.