Yanayin jujjuyawar albarkatun kasa shine dalilin da yasa juyawa yana da iyakance kawai samar da sassan silindi.Hakanan shine dalilin juyawa CNC sau da yawa shine mafi inganci kuma araha hanyar samar da wasu sassan silindi da tubular.CNC juya da aka sani ga high-madaidaicin surface gama da sauri samar damar.
CNC juya ba kawai wani surface machining tsari ko dai kamar yadda ya hada da matakai kamar hakowa, fuskantar, m, yankan, threading, kuma knurling da.Wannan yana ba CNC jujjuya fa'idar yin ayyuka da yawa ba tare da cire kayan aikin ba wanda kuma yana haɓaka daidaito.