Ama-mobile gantry crane akhiwe ngokuyisisekelo ngamabhande amabili, izindlela zokuhamba, izindlela zokuphakamisa, nezingxenye zikagesi. Umthamo wokuphakamisa we-gantry crane ephathwayo ingaba ngamakhulu amathani, ngakho-ke lolu futhi wuhlobo lwe-gantry crane esindayo. Kukhona nolunye uhlobo lwe-gantry crane ehambayo, ama-cranes e-European-type double-girder gantry. Yamukele umqondo wesisindo esilula, ukucindezela okuphansi kwamasondo, indawo encane yokuvaleka, ukusebenza okuthembekile, kanye nesakhiwo esihlangene.
I-gantry crane engumakhalekhukhwini nayo ivamise ukusetshenziswa ezimayini, ezigayweni zensimbi nezensimbi, emagcekeni esitimela, nasezikhumulweni zasolwandle. Izuza edizayini ye-double-girder enamandla amakhulu, ama-spans amakhulu, noma ukuphakama okuphezulu. Okhreni abane-double girder ngokuvamile badinga imvume enkulu ngaphezu kokuphakama kweleveli ye-cranes, njengoba amaloli okuphakamisa enqamula ngaphezu kwamagida ebhulohweni le-cranes. Njengoba ama-cranes e-single-girder edinga i-runway eyodwa kuphela, lawa masistimu ngokuvamile anesisindo esiphansi esifile, okusho ukuthi angasebenzisa amasistimu we-runway anesisindo esilula futhi anamathisele ezakhiweni ezikhona ezisekelayo, ezingakwazi ukwenza umsebenzi osindayo njenge-double girder mobile gantry crane.
Izinhlobo ze-gantry crane ezihambayo nazo zilungele ukwakha amabhulokhi kakhonkolo, amabhande okuhlanganisa ensimbi asinda kakhulu, kanye nokulayishwa kwezingodo. I-double girder gantry crane itholakala ngezitayela ezimbili, Uhlobo lwe-U kanye nohlobo lwe-U, futhi ifakwe umshini wokuphakamisa owakhelwe ngaphakathi, ngokuvamile kungaba i-hoist evulekile noma iwintshi.
I-double-girder gantry crane ingahlinzekwa ngemisebenzi ehlukene yokusebenza, amandla awo alinganiselwe asuselwe ezidingweni zamakhasimende. Thina singonjiniyela be-SEVENCRANE futhi sakha izixazululo ezenziwe ngokwezifiso ezisukela kuma-cranes akongayo, angasindi kuya kumthamo ophezulu, osindayo, ama-cyclops anebhokisi elishiselwe.