Amashafu ensimbi yensimbi engagqwali asetshenziswa kumamotho ezimoto ayizingxenye eziklanywe ukunemba eziklanyelwe ukuhlinzeka ngokudluliswa kwamandla okuthembekile nokuqina ezindaweni ezifunwayo.Lawa mashafu ngokuvamile enziwa ngensimbi engagqwali yekhwalithi ephezulu, enikeza ukumelana nokugqwala okuhle kakhulu namandla.
Ezinhlelweni zezimoto, izinsimbi zensimbi engagqwali zidlala indima ebalulekile ekudluliseleni ukunyakaza okujikelezayo kusuka emoteni kuya ezintweni ezahlukahlukene ezinjengabalandeli, amaphampu, namagiya.Zenzelwe ukumelana nesivinini esikhulu, ukulayishwa, namazinga okushisa ajwayele ukuhlangana nawo kumasistimu ezimoto.
Enye yezinzuzo eziyinhloko zamashafu ensimbi yensimbi engagqwali ukumelana kwawo nokugqwala, okusiza ukuqinisekisa ukusebenza kwesikhathi eside nokwethembeka ezindaweni ezinokhahlo zezimoto.Ukwengeza, ama-shafts ensimbi engagqwali angenziwa ngomshini ukuze abekezelelane kakhulu, okuvumela ukuqondanisa okunembile nokusebenza kahle.