Nyimbo za Excavatorndi mtundu watsopano wa maulendo a chassis omwe amagwiritsidwa ntchito pofukula ang'onoang'ono ndi makina ena omanga apakati ndi aakulu.Ili ndi gawo loyenda lamtundu wa crawler ndi chiwerengero cha zingwe ndi chingwe cha waya chophatikizidwa mu rabala.Njira ya mphira ingagwiritsidwe ntchito kwambiri pamakina oyendera monga ulimi, zomangamanga ndi makina omanga, monga: zofukula zokwawa, zonyamula katundu, magalimoto otaya, magalimoto oyendetsa, etc. Ili ndi ubwino wa phokoso lochepa, kugwedezeka kwazing'ono, ndi kugwedeza kwakukulu.

Osawononga msewu, chiŵerengero chapansi chapansi ndi chaching'ono, ndipo zigawo zapadera zimalowa m'malo mwazitsulo ndi matayala.Pakalipano, tagwiritsa ntchito njira yophatikizira yosakanikirana popanda kuphatikizika kuti tipange mphira.

Njira yolumikizira mphira yopanda mphira imagonjetsa zolakwika za njanji ya rabara yomwe ili yosavuta kuthyoka ndi kusweka pamiyendo ikagwiritsidwa ntchito nthawi yayitali, ndikuwonjezera moyo wautumiki wa njanji ya rabara.Komanso ndi apamwamba kuposa ochiritsira track.With mkulu wamakomedwe mphamvu ndi moyo wautali.