ʻO ka lou crane ka mea maʻamau o ka hoʻolaha ʻana i nā mīkini hoʻokiʻekiʻe. Hoʻokuʻu pinepine ʻia ma ke kaula uwea o ka mīkini hoʻi ma o nā poloka pulley a me nā mea ʻē aʻe.
Hiki ke hoʻokaʻawale ʻia nā makau i nā makau hoʻokahi a me nā makau ʻelua. He mea maʻalahi ka hana a me ka maʻalahi o ka hoʻohana, akā ʻaʻole maikaʻi ka ikaika. Hoʻohana ʻia ka hapa nui o lākou i nā wahi hana me ka hiki ke hāpai ʻia ma lalo o 80 tons; Hoʻohana pinepine ʻia nā makau ʻelua me nā mana like ʻole ke nui ka hiki ke hāpai.
Hoʻopili ʻia nā makau crane laminated mai nā papa kila i ʻoki ʻia a hana ʻia. I ka wā e māhā ai nā papa pākahi, ʻaʻole e pōʻino ka makau holoʻokoʻa. Maikaʻi ka palekana, akā nui ka paona ponoʻī.
Hoʻohana ʻia ka hapa nui o lākou no ka hiki ke hāpai nui a i ʻole ka hāpai ʻana i nā bākeke kila hoʻoheheʻe ʻia ma ka crane. Hoʻopili pinepine ʻia ka makau i ka wā o ka hana a pono e hana ʻia me ke kila kalapona kiʻekiʻe me ka paʻakikī maikaʻi.
Hana ʻia nā lou crane i hana ʻia e SEVENCRANE e like me nā koi o nā kūlana ʻenehana hook a me nā kikoʻī palekana. Loaʻa i nā huahana kahi palapala hōʻoia maikaʻi, e kū ana i nā koi o ka hapa nui o nā hiʻohiʻona.
Hana ʻia ka mea lou crane me 20 kiʻekiʻe kiʻekiʻe carbon kila a i ʻole forged hook mea kūikawā e like me DG20Mn, DG34CrMo. Hoʻohana maʻamau ʻia ka mea o ka makau pā A3, C3 kila kalapona maʻamau, a i ʻole 16Mn kila haʻahaʻa haʻahaʻa. Ua hoʻāʻo ʻia nā makau hou a pau, a ʻo ka wehe ʻana o ka makau ʻaʻole i ʻoi aku ma mua o 0.25% o ka wehe mua.
E nānā i ka makau no nā māwae a i ʻole deformation, corrosion a ʻaʻahu, a ma hope wale nō o ka hala ʻana o nā hoʻokolohua āpau e ʻae ʻia e haʻalele i ka hale hana. Kūʻai nā keʻena koʻikoʻi i nā makau e like me nā alahao, nā awa, a me nā mea ʻē aʻe.
E hōʻailona ʻia nā lou crane e hele ai i ka nānā ʻana ma ka wahi haʻahaʻa haʻahaʻa o ka makau, me ke kaupaona hāpai ʻia, ka inoa ʻoihana, ka māka nānā, ka helu hana, etc.