Isimiso sokushisisa sezinto ezincibilikisa itiyela lesigubhu ukushisa, ukuncibilika kanye nokuncibilika kwesigubhu setiyela ngepuleti lokushisisa. Ikakhulukazi yakhiwe ibhokisi lokukhipha imigqomo, isistimu yokuphakamisa, i-propeller kanye nesistimu yokulawula kagesi.

Ibhokisi lokuncibilika kwebitumen yesigubhu lihlukaniswe ngamakamelo aphezulu naphansi. Igumbi eliphezulu liyigumbi elincibilikayo lebitumen, elimbozwe kakhulu ngamakhoyili okushisa amafutha noma amapayipi okushisa komoya. Ibhemu liyashiswa lincibilike liphume emgqonyeni. I-crane hook ifakwe ku-gantry, futhi ibhakede libanjwe. Ibhakede lebitume liphakanyiswa ngewintshi kagesi, bese lihanjiswa eceleni ukuze libeke ibhakede lebitumen kumzila wesitimela. Khona-ke uphephela uphushela ibhakede ekamelweni eliphezulu ngokusebenzisa izinsimbi ezimbili eziqondisayo, futhi ngesikhathi esifanayo, ibhakede elingenalutho likhishwa endaweni engemuva yokugcina. Kukhona ithangi likawoyela elingaconsi phansi emnyango wombhobho webitumen. I-bitumen ingena ekamelweni eliphansi lebhokisi futhi iyaqhubeka ishisa kuze kube yilapho izinga lokushisa lifinyelela cishe ku-100, elingathuthwa. Bese iphonswa ethangini letiyela ngepompo yebitumen. Ikamelo elingaphansi lingasetshenziswa futhi njengethangi lokushisa lebitumen.
Izinto zokuncibilikisa itiyela lezigubhu zinezici zokungavinjelwa indawo yokwakha, ukuguquguquka okuqinile, nezinga lokuhluleka eliphansi kakhulu. Uma kudingeka ukukhiqizwa okukhulu, amayunithi amaningi angahlanganiswa.