Imashini isya imisumari nayo yitwa imashini imesa. Ikuraho burrs kandi ikanogosha imisumari itunganywa na mashini ikora imisumari ikoresheje umuvuduko mwinshi uzunguruka, kandi ikoreshwa mugusebya no gusiga imisumari yizengurutswe yakozwe gusa. Imashini isiga imisumari ni ibikoresho bidasanzwe mu nganda zikora imisumari.
Imisumari yanduye hamwe namavuta amwe iyo agabanutse mumisumari ikora imashini ihita. Kandi, ibicu byinshi byumukungugu mumisumari ikora ibimera. Dukeneye rero aimashini yimisumarigukora imisumari isanzwe isanzwe irabagirana.