Le robhothi yokuwelda esebenzisana nabanye, exhotyiswe ngetotshi yokuwelda echanekileyo kakhulu kunye nenkqubo yokuva amandla, yenza ukuwelda okuchanekileyo kwe-arc kwiindawo zokusebenza zesinyithi. Isebenza ngokukhuselekileyo kunye nabasebenzi ngaphandle kwemiqobo ebonakalayo, ilungele iimoto, i-sheet metal kunye nezinye iimeko zokuwelda zoshishino. Inikezela ngokuwelda okufanayo, okuzinzileyo, inyusa kakhulu ukusebenza kakuhle kokuwelda kunye nomgangatho, inciphisa umngcipheko wokusebenza ngesandla kunye neendleko, iqhuba ukuphuculwa kwemveliso ezenzekelayo eguquguqukayo kwiifektri.
Lo mzobo ubonisa ulwakhiwo loomatshini kunye nobukhulu bokufakelwa kwerobhothi yokuwelda esebenzisana nayo, uphawula ngokucacileyo uluhlu lokuhamba oludibeneyo, irediyasi yokusebenza ephezulu, iiparameter zobude bengalo, kunye nobukhulu bokufakelwa kwesiseko. Uchaza imvilophu yokuhamba kwerobhothi kunye neemfuno zokubeka indawo yokufakela, ukubonelela ngedatha echanekileyo yokuthunyelwa kwindawo, uyilo lwendawo yokusebenza, kunye nokudibanisa umgca wemveliso ozenzekelayo, ukuqinisekisa imisebenzi yokuwelda echanekileyo nekhuselekileyo.