He mea nui nā Hauls Trucks i ka ʻoihana mining a ma ke ʻano he kaʻa me ka hana maikaʻi loa e nā mea hana a me nā limahana ʻē aʻe.Hoʻopilikia mau nā mea hoʻokele me ka haʻalulu a me ka haʻalulu i ka wā o ka hoʻouka ʻana a me ka lawe ʻana.Ua hoʻāʻo ʻo Arex i ka hopena o ka pōhaku ma luna o ka pā kila a loaʻa iā mākou kahi kiʻekiʻe o 108 decibels a laila hoʻohana mākou i ka manganese steel wire mesh ma ke ʻano he skeleton i loko o 6" liner rubber e hiki ke hoʻonui i kona paʻakikī a ʻo ka hopena kiʻekiʻe e hōʻike wale i 60 decibels hope loa.ʻOi aku ka maikaʻi ma mua o nā laina kila ke loaʻa ka hopena a me ka pōʻino i ka wā o ka hoʻouka ʻana i ka pōhaku i loko o kahi moena.