Iyi ndi makina oyeretsera thupi omwe angagwiritsidwe ntchito poyeretsa zitini zonse.Zitini zimazungulira pa chonyamulira ndipo mpweya umatuluka kuchokera mbali zosiyanasiyana kuti zitini zitsuke bwino.Makinawa alinso ndi njira yosonkhanitsira fumbi yomwe ingasankhidwe kuti ichepetse fumbi komanso kuyeretsa bwino kwambiri.Kapangidwe ka chivundikiro cha chitetezo cha arylic kuti chitsimikizire malo ogwirira ntchito oyera. Zolemba:Makina osonkhanitsira fumbi (Odzipangira okha) sakuphatikizidwa mu makina otsukira zitini.
