1Kudula kutalika: 500mm-9999mm.
2, Kudula mwatsatanetsatane: ± 1mm.
3, Amagwiritsa ntchito pampu yamafuta odziyimira pawokha ndipo fyuluta imagwirizanitsa magulu awiri a machubu amkuwa kuti awagawire m'magiya osiyanasiyana amafuta, kudzoza ndi kuziziritsa.
4, Kapangidwe ka mpeni wa Helical, mtundu wa mpeni wa sawtooth, kuchepetsa kutsekereza, phokoso lochepa.
5, Kusamalira moyenera: Chitsulo chapamwamba cha alloy cha shaft chamasamba, chomwe chimathandizira kuti chikhale chokhazikika.