Umsebenzi ophambili weumatshini wokudubulakukususa i-burrs kunye nomhlwa kumphezulu wemveliso yentsimbi, okanye ukungcola okuthile okufakwe kumphezulu wemveliso yentsimbi. Umatshini wokuqhumisa ukudubula kuseyona iteknoloji yonyango ephezulu kunye neyona nto isebenzayo kwimveliso yentsimbi, ngoko ke umatshini wokudubula usetyenziswa ngokubanzi kwinkqubo yokuvelisa intsimbi.
Ukongeza kwitekhnoloji yonyango lomphezulu olungileyo, umatshini wokuqhumisa unokususa ezinye iimveliso ezinokungcola okunzulu okuncanyathiselwe kumphezulu, kwaye ukomeleza ngakumbi iziphumo zonyango lomphezulu ngokweemfuno zemveliso, ukuze Isiphumo sonyango lomphezulu siqinisekiswe.
Umsebenzi omkhulu wokudubula umatshini wokudubula kwimveliso yemizi-mveliso kukunyanga umphezulu weemveliso zentsimbi, kwaye kwangaxeshanye, unokunciphisa ubomi bokudinwa kwamalungu, ukwandisa uxinzelelo oluphezulu lomhlaba, kwaye kunokuthiwa ukwandisa amandla iinxalenye zemveliso, ukuvumela iimveliso zetsimbi Unyango lomphezulu lugqibelele ngakumbi, kwaye indawo ehlwempuzekileyo yegrit yentsimbi kunye nentsimbi yensimbi inokuphinda ihlolwe ngumatshini wokudubula.
