ʻO nā kiʻi a me nā kiʻi o ka lua-beam gantry crane he mau hale wiliwili me ka ʻole o nā ami humuhumu, me ke kiʻekiʻe kiʻekiʻe o ke kūpaʻa a me ka ʻoʻoleʻa.ʻO ke kaʻa kaʻa kaʻa kaʻa kaʻa kaʻa uila, hiki i ka lua-beam gantry crane ke hoʻolako me nā grapples a me nā mea hana ʻē aʻe no ka hāpai ʻana i nā ipu, kūpono no ka hoʻohana ʻana.
ʻO ka hiki ke hoʻokiʻekiʻe ʻia o ka lua-beam gantry crane hiki ke lilo i mau haneli o nā tona, a hoʻohana nui ʻia ia i nā wahi waiho ākea, nā wahi mālama waiwai, nā mea kanu sima, nā ʻoihana granite, nā ʻoihana hale, nā ʻoihana ʻenekinia, nā pā alanui no ka hoʻouka ʻana a me ka wehe ʻana. ukana.Hoʻohana nui ʻia ʻo gantry crane pālua i ka hāpai ʻana i nā hana kaumaha.
He māmā a hiki ke hoʻohana ʻia nā wāwae e hoʻopaʻa i nā alahaka, nā maʻa, a me nā mea hāpai.Ma nā hoʻolālā hoʻolālā kiʻekiʻe, hiki i nā cranes gantry-girder ʻelua ke ʻae i nā kiʻekiʻe kiʻekiʻe o ka hāpai ʻana no ka mea ua kau ʻia ka hoist ma lalo o ke kaola.ʻAʻole lākou makemake i nā mea hou aku no nā kaola alahaka a me nā ʻōnaehana holo, no laila pono e mālama pono nā wāwae kākoʻo kūkulu hale.Noʻonoʻo ʻia ʻo gantry crane ʻelua i kahi kumu ʻaʻole e hoʻokomo i kahi ʻōnaehana holo kaʻa i kau ʻia i ka hale, a ʻoi aku ka maʻamau no nā noi ākea kahi i hiki ʻole ke hoʻokomo ʻia nā kaola piha a me nā kolamu, a hiki ke hoʻohana ʻia ma lalo o ke alahaka-lei aliʻi. ʻōnaehana.
Pono ma'amau ka ho'oma'ema'e 'ana o nā pahu ku'i lua ma luna o ka pae ki'eki'e o ke kaola, no ka mea, e holo ana ka kaa hoist ma luna o nā kaola alahaka ma ka crane.ʻO ke ʻano kumu o ka crane gantry beam ʻelua, ʻo ia ka hele ʻana o nā wāwae a me nā huila ma ka lōʻihi o ka ʻōnaehana kaola honua, me ʻelua mau kāʻei i hoʻopaʻa ʻia ma nā wāwae, a ʻo ka trolley hoist e hoʻopaneʻe i nā booms a hele ma luna o nā apo.