Uma kuqhathaniswa ne-refiner, umshini wokugaya ibhola uthuthukisiwe ngezinzuzo zokusebenzisa amandla amancane, ukukhiqiza okuphezulu, umsindo ophansi, okuqukethwe kwensimbi ephansi kakhulu, ukuhlanza okulula, ukusebenza kokuthinta okukodwa, njll. Ngale ndlela, kufinyezwe izikhathi ezingu-8-10. yesikhathi sokugaya futhi igcinwe izikhathi ezi-4-6 zokusetshenziswa kwamandla.Ngobuchwepheshe obuphambili obuhamba phambili kanye nezesekeli ezingenisiwe ngokupakishwa kwangempela, ukusebenza kwemishini kanye nekhwalithi yemikhiqizo kuqinisekisiwe.