Gantry crane choj crane yog ib hom deformation, kuj hu ua gantry crane. Nws tsuas yog siv rau sab nraum zoov cargo yard, khoom vaj khoom tsev thiab khoom thauj khoom thauj khoom ua lag luam. Gantry crane muaj cov yam ntxwv ntawm kev siv nyiaj siab tshaj, cov kabmob ntawm kev lag luam, kev yoog raws ntau thiab kev siv ntau yam, thiab dav siv hauv chaw nres nkoj freight mev.

Nws cov hlau qauv yog zoo li ib qho qauv duab. Raws li cov nqaj tseem ceeb, ob tug uas txhawb nqa taw yog ntsia, uas tuaj yeem ncaj nraim mus taug kev hauv av, thiab ob hnub ntawm qhov nqaj loj loj tau txuas ntxiv rau cov kab ntsig cantilever.