rollers paʻu faaaogaina i le conveyor acid ma alamanuia alkali, e mafai ona suia rollers paʻu roll uamea masani, lola palasitika nylon, ola umi, faapipiiina faigofie, fale o manu ma le loto le faaogatotonuina o felauaiga, faaitiitia itu tamoʻe fusi conveyor ma le puipuiga ma isi. rollers paʻu nai lo uʻamea masani lola-faatinoga, maualalo coefficient laei, o le tele o le laiti, mamafa malamalama, faigofie e sui ai, ma maualalo leo, sologa lelei, tuutuuga tuuina lola paʻu talafeagai mo le siosiomaga saua galuega, olaga maualuga.