Mobile gantry crane ha e le hantle e entsoe ka li-girders tse peli, mekhoa ea ho eta, mekhoa ea ho phahamisa le likarolo tsa motlakase. Bophahamo ba phahamiso ea gantry crane e tsamaeang e ka ba lithane tse makholo, ka hona sena ke mofuta oa crane ea gantry e boima. Ho na le mofuta o mong oa li-gantry crane tse tsamaeang, tsa mofuta oa European double-girder gantry cranes. E amohetse mohopolo oa boima bo bobebe, khatello e tlase ea mabili, sebaka se senyenyane sa ho koala, ts'ebetso e tšepahalang, le sebopeho se kopaneng.
Mobile gantry crane le eona hangata e sebelisoa merafong, litsing tsa tšepe le litšepe, lijarete tsa terene le likoung tsa leoatle. E rua molemo ho moralo oa li-girder tse peli tse nang le matla a holimo, li-span tse kholoanyane, kapa bophahamo bo phahameng. Li-cranes tse nang le li-girder tse peli hangata li hloka sebaka se seholoanyane ho feta li-cranes tse phahameng ka ho fetisisa, ha literaka tsa lifti li haola ka holim'a li-girders borokhong ba cranes. Kaha li-cranes tsa single-girder li hloka feela leballo le le leng la tsela ea lifofane, litsamaiso tsena ka kakaretso li na le boima bo tlase, ho bolelang hore li ka sebelisa litsamaiso tse bobebe tse bobebe le ho hokela meahong e teng e tšehetsang meaho, e ke keng ea etsa mosebetsi o boima joalo ka double girder mobile gantry crane.
Mefuta ea li-mobile gantry crane e boetse e loketse ho aha li-block tsa konkreite, maqhama a tšepe a boima haholo le ho kenya lehong. Double girder gantry crane li fumaneha ka mefuta e 'meli, mofuta oa A le mofuta oa U, 'me li na le mochini o phahamisang o hahelletsoeng kahare, hangata e ka ba sehole se bulehileng kapa win.
Double-girder gantry crane e ka fanoa ka mesebetsi e fapaneng ea ho sebetsa, eo bokhoni ba eona bo lekantsoeng bo ipapisitseng le litlhoko tsa bareki. Re baenjiniere ba SEVENCRANE 'me re haha litharollo tse tloaelehileng tse tsoang ho li-cranes tsa moruo, tse bobebe ho ea ho li-cyclops tse phahameng, tse boima, tse nang le li-weld girder-boxed.