I-crawler undercarriage iwuhlelo lwesibili lokuhamba olusetshenziswa kakhulu ngemuva kohlobo lwamasondo emishinini yokwakha. Okuvame ukusetshenziswa yilezi: imishini ephathwayo yokuchoboza neyokuhlola, izinsimbi zokumba, ama-excavators, imishini yokugandaya, njll.
Kafushane, izinzuzo zohlelo lokusebenza lwe-crawler chassis ziningi futhi zibalulekile. Kusukela ekudonseni okuphakeme nokuzinza kuye ekuntanteni okuthuthukisiwe nokusebenzisa izinto ezihlukahlukene, amasistimu ethrekhi anikeza uhla lwezinzuzo ezisiza ukuthuthukisa ukusebenza kanye nokusebenza kahle kwemishini esindayo.