Cantilever gantry crane iyi ndi mtundu womwe umawonedwa nthawi zambiri wa njanji yokwera panjanji yomwe imagwiritsidwa ntchito ponyamula katundu wamkulu panja, monga m'mayadi onyamula katundu, doko la nyanja. Crane imodzi ya gantry crane kapena double beam gantry crane iyenera kusankhidwa molingana ndi zofunikira pakunyamula katundu ndi zofunikira zina zapadera. Mukakweza katundu ali pansi pa matani 50, kutalika kwake kumakhala pansi pa 35 mamita, palibe zofunikira zenizeni za ntchito, kusankha kwa gantry crane ya mtundu umodzi wa mtengo ndi yoyenera. Ngati zofunikira za girder khomo ndi zazikulu, liwiro logwira ntchito ndilofulumira, kapena gawo lolemera ndi gawo lalitali limakwezedwa kawirikawiri, ndiye kuti gantry crane iwiri iyenera kusankhidwa. Crane ya cantilever gantry imapangidwa ngati bokosi, zomangira pawiri zimakhala zopendekeka, ndipo miyendo imagawidwa Mitundu A ndi Mitundu U malinga ndi zofunikira.
Crane yokhazikika ya double-girder gantry crane imagwira ntchito pa katundu wamba, kutsitsa, kukweza, ndi kugwira ntchito pamayadi akunja ndi mabwalo anjanji. The cantilever gantry crane amatha kunyamula katundu wokulirapo, wolemera kwambiri pamalo akunja, monga madoko, malo osungiramo zombo, malo osungiramo zinthu, ndi malo omangira. Crane ya cantilever gantry imayendetsedwa pamayendedwe okwera pansi, ndipo imagwiritsidwa ntchito kwambiri pakukweza ndi kutsitsa pamayadi osungira panja, ma pier, magetsi, madoko ndi mayadi a njanji, pakati pa ena. Crane ya cantilever gantry imagwiritsidwa ntchito m'malo osiyanasiyana otseguka ponyamula katundu wolemetsa kapena zida, zomwe nthawi zambiri zimapezeka m'malo osungiramo zinthu, mabwalo a njanji, mayadi otengera, mayadi akale, ndi mayadi achitsulo.
Chifukwa cha chikhalidwe chake, gantry crane yakunja ndi chida chambiri chomwe chimagwiritsidwa ntchito pafupipafupi. Ma Gantries amapezeka ndi mphamvu zofananira ndi ma spans to bridge cranes, ndipo ndi oyenera kulowa m'nyumba komanso kunja. Ma gantries ndi ofanana ndi ma cranes a mlatho, kupatula ngati amagwira njanji pansi pamtunda.