The screw feeder ke e 'ngoe ea lisebelisoa tse hlokahalang bakeng sa liindasteri tse bobebe le tse boima tse kang indasteri ea morao-rao ea lik'hemik'hale, k'hemistri, lijo, metallurgy, thepa ea mohaho, lehlakoreng la temo, joalo-joalo E fana ka katleho ea mosebetsi, lipalangoang tse nepahetseng, boleng bo ka tšeptjoang le bo tšoarellang, le ho mokhoa oa ho fepa Lisebelisoa tse tala ha li na mongobo ka ho feletseng, tšilafalo, lintho tse tsoang linaheng tse ling, le ho lutla.