Mobile gantry crane kwenikweni amapangidwa ndi ma girders awiri, njira zoyendera, zonyamula, ndi zida zamagetsi. Mphamvu yokweza ya gantry crane imatha kukhala matani mazana ambiri, kotero uwu ndi mtundu wa crane yolemetsa. Palinso mtundu wina wa ma gantry crane, ma crane aku Europe amtundu wa double-girder gantry. Iwo atengera lingaliro la kulemera kopepuka, kutsika kwapansi pa mawilo, malo ang'onoang'ono otsekedwa, ntchito yodalirika, ndi kapangidwe kameneka.
Mobile gantry crane imagwiritsidwanso ntchito nthawi zambiri kumigodi, zitsulo ndi zitsulo, mabwalo a njanji, ndi madoko am'madzi. Zimapindula ndi mapangidwe awiri-girder okhala ndi mphamvu zapamwamba, zotalikirapo zazikulu, kapena zokwera zokwera. Ma cranes okwera pawiri nthawi zambiri amafunikira kulowera kokulirapo pamwamba pa ma cranes okwera, pomwe magalimoto onyamula amadutsa pamwamba pa zomangira pamlatho wa cranes. Popeza ma cranes a single-girder amafunikira mtanda umodzi wokha, makinawa nthawi zambiri amakhala ndi kulemera kochepa, kutanthauza kuti amatha kugwiritsa ntchito njira zopepuka zowulukira ndikumangirira ku nyumba zomwe zilipo, zomwe sizingagwire ntchito yolemetsa ngati girder mobile gantry crane.
Mitundu ya ma gantry crane ndiyoyeneranso kupanga midadada ya konkriti, zomangira zitsulo zolemera kwambiri, ndikukweza matabwa. Ma crane a Double girder gantry amapezeka mu masitayelo awiri, mtundu A ndi mtundu wa U, ndipo amakhala ndi makina okweza omangira, nthawi zambiri amakhala otsegula kapena winchi.
Crane ya Double girder gantry crane imatha kuperekedwa m'ntchito zosiyanasiyana, zomwe zida zake zovotera zimatengera zomwe makasitomala amafuna. Ife SEVENCRANE mainjiniya ndipo timapanga njira zothetsera makonda zomwe zimayambira pazachuma, zopepuka zopepuka mpaka zapamwamba kwambiri, zolemetsa, zowotcherera zokhala ndi ma cyclops.