Iyo crawler undercarriage ndiyo yechipiri inonyanya kushandiswa kufamba sisitimu mushure merudzi rwematayi mumichina yekuvaka.Anowanzo shandiswa ndeaya: nhare yekupwanya uye yekuvheneka michina, zvidhinha zvekuchera, zvekuchera, michina yekugadzira, nezvimwe.
Muchidimbu, mabhenefiti ekushandisa kwe crawler chassis akawanda uye akakosha.Kubva pakutepfenyura kwepamusoro uye kugadzikana kusvika pakusimudzira kuyerera uye kuita zvakasiyana-siyana, masisitimu etrack anopa huwandu hwemabhenefiti anobatsira kuvandudza kuita kwese uye kushanda zvakanaka kwemichina inorema.