Maganin jika na niƙa mai nauyi ya shahara sosai a ƙasashen Afirka da yawa kamar Zimbabwe, Masar da Sudan, Hanyoyin aiki suna murƙushe → niƙa → Knelson centrifugal concentrator selection (don samun babban girman zinare kyauta) → tebur mai girgiza (don zaɓar zinare mai kyau) Da farko sanya dutse a cikin muƙamuƙi crusher, da saba crusher model ne PE250x400, wanda ikon ne 10 zuwa 20 ton a awa daya.Bayan murkushe, dutsen ya karye zuwa barbashi kasa da 20mm.Ana sanya barbashi a cikin injin daskararren kwanon zinari, kuma ana niƙa su cikin foda kamar raga 100 zuwa 150 (daga 80 zuwa 150 micron).Sa'an nan kuma slurry da aka kafa a cikin rigar kwanon rufi an canza shi zuwa ma'aunin centrifugal na zinari, inda aka tattara wasu yashi baki na zinariya.Sa'an nan wutsiya ta tafi teburin girgiza don ƙarin dawo da sauran zinare.
Za a loda kayan aikin gwal a cikin akwati 20ft ko 40ft bisa ga sarari da nauyi.Har ya zuwa yanzu, mun aika da kayan aikin nauyi zuwa kasashe da yawa, ciki har da Sudan, Zimbabwe, Mauritania da Masar.