Uhlelo lokulayisha nokulayisha ubhasikidi oluzenzakalelayo lungakwazi ukubona umsebenzi oqhubekayo nophumelelayo walo lonke uhlelo lokuvala inzalo, oluhlanganisa ikakhulukazi izingxenye ezintathu: umshini wokulayisha nokulayisha ubhasikidi wekheji/ubhasikidi, umshini wokushintsha ubhasikidi wekheji, i-hydraulic lift, okudingeka isetshenziswe ngokuvala inzalo. ama-retorts/autoclave, idivayisi yokudlulisa ethangini kanye nedivayisi yokuvula umnyango othomathikhi.