Hoʻokumu maoli ʻia ka crane gantry mobile me nā ʻāpana ʻelua, nā mīkini huakaʻi, nā mea hoʻokiʻekiʻe, a me nā ʻāpana uila.ʻO ka hiki ke hoʻokiʻekiʻe ʻia o ka puʻu gantry mobile he mau haneli mau tona, no laila, he ʻano hoʻi kēia o ka crane hana kaumaha.Aia kekahi ʻano ʻano o ka puʻu gantry mobile, ʻo European-type double-girder gantry cranes.Ua apono ia i ka manaʻo o ke kaumaha māmā, ke kaomi haʻahaʻa ma nā huila, kahi wahi liʻiliʻi liʻiliʻi, ka hana hilinaʻi, a me kahi hale paʻa.
Hoʻohana pinepine ʻia ʻo gantry crane ma nā mines, nā wili hao a me nā kila, nā pā alanui kaʻaahi, a me nā awa moana.Loaʻa iā ia ka pōmaikaʻi mai ka hoʻolālā ʻelua-girder me nā mana kiʻekiʻe, ʻoi aku ka nui, a i ʻole nā kiʻekiʻe kiʻekiʻe.Pono maʻamau ka ʻae ʻia ʻana o nā cranes kiʻekiʻe kiʻekiʻe ma luna o ke kiʻekiʻe kiʻekiʻe o ke kaola, ʻoiai e hele ana nā kaʻa hāpai ma luna o nā apo ma ke alahaka cranes.No ka mea, hoʻokahi wale nō pahu holo kaʻa kaʻa kaʻa, ʻo ia ka mea hiki iā lākou ke hoʻohana i nā ʻōnaehana holo māmā-kaumaha a hoʻopili i nā hale e kākoʻo nei i nā hale, ʻaʻole hiki ke hana i nā hana kaumaha e like me ka lua girder mobile gantry crane.
He kūpono nō hoʻi nā ʻano o ka ʻeke gantry crane no ke kūkulu ʻana i nā poloka mūmū, nā apo kila kila kaumaha loa, a me ka hoʻouka ʻana i nā lāʻau.Loaʻa ka crane gantry ʻelua i nā ʻano ʻelua, He ʻano a me ke ʻano U, a ua hoʻolako ʻia me kahi mīkini hoʻokiʻekiʻe i kūkulu ʻia, maʻamau a i ʻole ka hoist wehe a i ʻole winch.
Hiki ke hoʻolako ʻia ka crane gantry pālua-girder i nā hana hana like ʻole, nona nā mana helu e pili ana i nā koi o nā mea kūʻai aku.ʻO mākou ʻo SEVENCRANE nā mea ʻenekinia a kūkulu i nā hoʻonā maʻamau e pili ana mai nā cranes maʻalahi a hiki i nā cyclops kiʻekiʻe, hana kaumaha, welded girder-boxed cyclops.