Makina a Crawler Bult Butsting makina owombera ndi zida zochepa kwambiri zotsuka zigawo, zongoyipitsa ndi zidutswa zazing'ono zopangidwa.
Makinawa ndi opangira malo opangira malo, kuchotsedwa kwa dzimbiri, ndikukulira, ndipo kumagwiritsidwa ntchito poyeretsa.
Mitundu yambiri ya magawo akulu, makamaka ogwirira ntchito omwe amatha kugundana. Makinawa angagwiritsidwe ntchito pamapulogalamu amodzi, komanso akhoza kugwiritsidwanso ntchito m'magulu.
Chisamaliro chapadera chiyenera kudziwika chifukwa sichingagwiritsidwe ntchito kumadera otentha, magawo olima, kapena magawo a pakhungu, chifukwa amawononga lamba wa pakhungu.