Le cantilever gantry crane iwuhlobo oluvame ukubonakala lukajantshi we-gantry crane osetshenziswa ukuphatha imithwalo emikhulu ngaphandle, njengamayadi wezimpahla, ichweba lolwandle. I-gantry crane eyodwa ye-gantry crane noma i-double beam gantry crane kufanele ikhethwe ngokuya ngezidingo ezithile kumthamo womthwalo nezinye izidingo ezikhethekile ezenziwe ngokwezifiso. Lapho ukuphakamisa imithwalo kungaphansi kwamathani angu-50, ubude bungaphansi kwamamitha angu-35, azikho izidingo ezithile zohlelo lokusebenza, ukukhethwa kohlobo olulodwa lwe-gantry crane kufanelekile. Uma izidingo zebhande lomnyango zibanzi, isivinini sokusebenza siyashesha, noma ingxenye esindayo kanye nengxenye ende ivame ukuphakanyiswa, khona-ke kufanele kukhethwe i-double beam gantry crane. I-cantilever gantry crane imise okwebhokisi, amagida aphindwe kabili abe amathrekhi atshekile, kanti imilenze ihlukene ngo-Type A kanye ne-Type U ngokwezidingo zokusebenzisa.
I-double girder gantry crane iyasebenza ekulayishweni okuvamile, ukuthulula, ukuphakamisa, kanye nokubamba imisebenzi emayadini angaphandle nasemayadini kaloliwe. I-cantilever gantry crane iyakwazi ukuphatha imithwalo emikhulu, esindayo ezindaweni ezingaphandle, njengamachweba, izindawo zemikhumbi, izindawo zokugcina izimpahla, nezindawo zokwakha. I-cantilever gantry crane isebenza kumathrekhi okuhamba agibele phansi, futhi isetshenziswa kakhulu ukulayisha kanye nokukhipha imisebenzi emayadini okugcina angaphandle, ezizibeni, eziphehlweni zikagesi, emachwebeni nasemayadini kaloliwe, phakathi kokunye. I-cantilever gantry crane isetshenziswa ezindaweni ezihlukene zokusebenza ezivulekile zokusingatha imithwalo esindayo noma izinto zokwakha, ngokuvamile ezitholakala ezindaweni zokugcina impahla, emagcekeni omzila wesitimela, kumayadi okuqukatha, amayadi alahliwe, namayadi ensimbi.
Ngenxa yemvelo yayo, i-gantry crane iwucezu olubanzi lwemishini eyimishini esetshenziswa njalo. Ama-Gantries ayatholakala ngamakhono afanayo kanye ne-spans to bridge cranes, futhi afanele ukusetshenziswa kwangaphakathi kanye nangaphandle. Ama-gantries afana nama-cranes amabhuloho, ngaphandle kokuthi asebenza kumathrekhi angaphansi kwezinga eliphansi.