TheMochini oa Rotary Drum Sievingke thepa e tloaelehileng tlhahiso ea manyolo a motsoako, haholo-holo e sebelisetsoang ho arola lisebelisoa tse khutlisitsoeng le lihlahisoa tse felileng, hape li hlokomela lihlopha tsa lihlahisoa tsa ho qetela, esita le ho arola lihlahisoa tsa ho qetela.