Ma rotator a Q-type opangidwa bwino kwambiri okhala ndi chitseko chozungulira kuti azizungulira/kulipira okha. Amatha kugwira madzi otentha/nthunzi mpaka 2.0 MPa, 180°C. Kapangidwe kosamalidwa bwino komanso kolimba kozungulira mosalekeza m'mafakitale.