1.simba-saving screw vacuum pombi inotora iyo itsva-chizvarwa screw profile.
2.inotyairwa zvakananga, hapana kurasikirwa kwekutapuriranatokuwana ingangoita 100% kutapurirana zvakanaka.
3.Vector frequency conversion control, kukurumidza kupindura, kugovera zvine musoro kukosha kwazvino, uye nani torque inosimudzira maitiro.
4.Yakazara huwandu hwechigarire magineti frequency kutendeuka tekinoroji