1. I-chassis yakhelwe i-excavator yemishini esindayo, i-drilling rig, nokunye.
2. Wonke ama-rollers ayenziwe ngensimbi ye-alloy, ngokuhambisana ngokuqinile nezidingo zenqubo, futhi ngemva kokucisha ukwelashwa, ukumelana nokugqoka okuhle, impilo ende yenkonzo.
3. Amarola amane ayinhlanganisela enhle yokuqinisekisa ukuthwala umthwalo, indawo yomhlangano iyacutshungulwa, ukukhethwa kwedivayisi yokuqinisa amandla ukuze kuqinisekiswe ukuthi mkhulu kunezidingo zomthwalo wekhasimende.