Ukuqulunqwa kwangaphambili ngokuqhubekayo - Ngendlela eqhubekayo yokuqulunqa kwangaphambili, ukubunjwa kunikwa i-pre-shape echazwe kwintshukumo enye yokubumba. Ezinye zeeyunithi ezenziwe ngaphambili ezisetyenziswa ngokwesiqhelo zi-hydraulic okanye oomatshini bokushicilela kunye ne-cross rolls. Inkqubo eqhubekayo inika inzuzo, ngakumbi i-aluminium, ukuba inkqubo emfutshane ibandakanya ukupholisa okuncinci kuphela kwecandelo kunye namaxesha okujikeleza okuphezulu kunokufikelela. Ukungalungi kukuba iqondo lokuqulunqa lihlala lilinganiselwe kwinkqubo yokuqulunqwa kwangaphambili, ekubeni kuphela isixa esilinganiselweyo samandla kunye nokukwazi ukubunjwa okulinganiselweyo kufumaneka kwicandelo ngaphakathi kwe-stroke enye (yokushicilela) okanye i-revolution enye.