ʻO ka crawler undercarriage ka lua o ka ʻōnaehana hele ma hope o ke ʻano huila i nā mīkini hana. Hoʻohana maʻamau ʻia: nā mīkini paʻipaʻi a me nā mīkini screening, nā rigs drilling, excavators, paving machines, etc.
I ka hōʻuluʻulu ʻana, he nui a koʻikoʻi nā pono o ka hoʻohana ʻana i nā chassis crawler. Mai ka traction kiʻekiʻe a me ka paʻa i ka hoʻonui ʻana i ka flotation a me ka versatility, hāʻawi nā ʻōnaehana track i kahi ʻano o nā pono e kōkua i ka hoʻomaikaʻi ʻana i ka hana holoʻokoʻa a me ka pono o nā mīkini kaumaha.