Jeti yamadzi ndi mtundu wogwiritsa ntchito makina odulira madzi othamanga kwambiri, omwe ali m'gulu la atha kudula, ali ndi mwayi monga mawonekedwe ophatikizika, osawombera komanso osatulutsa matenthedwe kapena kutentha. Makina odulira madzi othamanga kwambiri ndi chida chomwe chimagwiritsidwa ntchito podula zitsulo ndi zinthu zina pogwiritsa ntchito jet yamadzi pa liwiro lalikulu komanso kuthamanga. Pokhala ndi phokoso lochepa, lopanda kuipitsidwa, kulondola kwambiri komanso kudalirika kwakukulu, makina athu odulira ndege amadzi akhala akugwiritsidwa ntchito pazinthu zosiyanasiyana, kuphatikizapo migodi, kupanga magalimoto, kupanga mapepala, chakudya, zojambulajambula ndi zomangamanga.