Buhler roller Mills le gearbox e entsoeng ho tloha 2007 ho ea 2009. Mechini e mengata e teng hona joale. Haeba u batla litsila tse rolara, ikutloe u lokolohile ho ikopanya le rona. Hape re ka fana ka likarolo tse ling tse kang lirolara, li-dials, joalo-joalo. Litšebeletso tse ling tse kang ho nchafatsa li ka fanoa hape.