Nkhungu ndi gawo lofunika kwambiri pakupanga mafakitale amakono. Sulfide, banga lamafuta ndi mawanga a dzimbiri adzapanga nkhungu pambuyo pa ntchito yayitali, zomwe zimabweretsa burr, kusakhazikika kwazinthu, ndi zina zambiri zazinthu zopangidwa. Njira zachikhalidwe zotsuka nkhungu zimaphatikizapo makina, mankhwala, kuyeretsa akupanga, ndi zina zotero, zomwe zimakhala zoletsedwa kwambiri mukakumana ndi chitetezo cha chilengedwe komanso zofunikira kwambiri zogwiritsira ntchito.Ukadaulo wotsuka wa laser umagwiritsa ntchito mtengo wamphamvu kwambiri wa laser kuti usungunuke pamwamba, kutulutsa mpweya nthawi yomweyo kapena kuchotsa dothi, zomwe zimapangitsa kuthamanga kwambiri komanso kuchotsa dothi kothandiza. Ndiukadaulo wopanda kuipitsidwa, wopanda phokoso komanso wopanda vuto woyeretsa zobiriwira. S&A chillers kwa CHIKWANGWANI lasers kupereka zipangizo laser kuyeretsa ndi njira yeniyeni kutentha kulamulira. Kukhala ndi machitidwe 2 owongolera kutentha, oyenera nthawi zosiyanasiyana. Kuwunika kwanthawi yeniyeni kwa magwiridwe antchito a chiller ndikusintha magawo a chiller. Kuthetsa mavuto a dothi la nkhungu ndi zida zoyeretsera laser, kumatha kupititsa patsogolo kulondola kwa kupanga komanso kuchita bwino, ndikubweretsa zabwino zambiri pakupangira mafakitale.