Caterpillar yatulutsa njira ziwiri zoyendetsera pansi, Abrasion Undercarriage System ndi Heavy-Duty Extended Life (HDXL) Undercarriage System ndi DuraLink.

The Cat AbrasionUndercarriage Systemlapangidwa kuti lizigwira ntchito mwapang'onopang'ono-kutupa kwambiri, kutsika mpaka kocheperako.
Ndiwolowa m'malo mwachindunji a SystemOne ndipo adayesedwa m'munda muzinthu zowononga, kuphatikiza mchenga, matope, mwala wophwanyidwa, dongo, ndi miyala.
The Cat Abrasion Undercarriage System ikupezeka fakitale, kapena ngati chopereka cholowa m'malo, pa Cat D1 mpaka D6 (yaing'ono mpaka yapakati) doza ndi mitundu ya D3 mpaka D6.
Cat Abrasion imakhala ndi ukadaulo wozungulira, opumira opumira, komanso kapangidwe kake ka cartridge komwe kamapangitsa kuti kusungike bwino, kampaniyo ikutero.Kuwongolera kulikonse kumeneku kumathandizira kuti pakhale nthawi yayitali yovala ndi kutsika mtengo waumwini.
Ukadaulo wozungulira wa mphaka umachotsa kutembenuka kwa bushing m'machitidwe abrasive, komanso kukwapula kowononga komwe kumachitika mothamanga kwambiri komwe kumachepetsa nthawi yokonza.Dongosololi limakhala ndi ma Idlers omwe ali ndi patent Relieved Tread Idlers omwe amachotsa kulumikizana pakati pa osasamala ndi ma njanji olumikizirana, zomwe zimachepetsa kwambiri kuvala kwa maulalo ndikupangitsa kuti moyo ukhale wotalikirapo kuwirikiza kawiri poyerekeza ndi anthu osasamala, Cat akuti.
The Cat Heavy Duty Extended Life (HDXL) Undercarriage System yokhala ndi DuraLink idapangidwa kuti izikhala ndi moyo wautali wovala motsika mpaka wapakatikati, wapakatikati- mpaka wapamwamba kwambiri monga miyala yolimba, kutayira pansi, ndi nkhalango.HDXL undercarriage ikupezeka kwa Cat medium and big dozers.
Fakitale yoyikapo kapena yopezeka ngati chotengera cholowa m'malo, HDXL imapezeka pazitsulo zonse ziwiri zodzigudubuza komanso zoyimitsidwa kuyambira pa Cat D4 mpaka mitundu ya D11 (cholowa cha Cat D6 mpaka D11).