Yin amfani da tsaka-tsaki marar amfani mai rufe hanya da yawa don tabbatar da tsaftataccen muhalli mai tsabta a cikin ɗakin rotor Advanced aiki don tabbatar da kyawawan dabi'u na geometrical na rotors, kazalika da ƙarancin amo da tsawon rayuwar sabis. Ana amfani da hatimin shaft na musamman don cimma tsayin daka mai tsayi ba tare da zubar mai ba. Karamin tsari, nauyi mai sauƙi, da ƙaramin ƙara. Rufi, sputtering, ion plating, ruwa crystal allura. bushewar injin injin, bushewa-daskarewa, tsabtace iska. Kayan aikin nazari, na'urorin rufewa. Vacuum zafi magani furnacedissolution makera. Daban-daban sauran na'urori.