Le roller ye-friction ene-shaft yenziwe nge-alloy yekhwalithi enhle ye-aluminium.Irola yokushayisana kwentambo ine-anti-static, ukumelana nokugqokwa nezinye izici, ukunemba kokuphakelwa kwentambo kuthuthukiswa kakhulu.Lapho ijubane lokuphakela lizoba ku-8000 RPM (okulingana namamitha angu-15/isekhondi), iso lethu elinqunu alikwazi ngisho nokulizwa lizungeza.Siphinde sibe nolunye uhlobo lwe-friction roller ongayikhetha.Singakwazi futhi ukwenza isitayela osidingayo.Zizwe ukhululekile ukusazisa.