ʻO ka paipu ʻōnaehana hydraulic he paipu kila i huki ʻia a i ʻole i ʻōwili ʻia i ke anu me ka nui o ke anawaena pololei i hoʻohana ʻia no ka lawe ʻana i nā wai e like me ka wai, ka aila, a me ke kinoea.
Hana ʻia ka huahana me nā paipu kila kiʻekiʻe e like me nā mea maka, a ʻo nā paipu kila maʻemaʻe ʻole me ka pololei kiʻekiʻe a me ka maʻalahi maikaʻi e hana ʻia ma o nā kaʻina kikoʻī a kūʻokoʻa.Hoʻopili ʻia ka huahana i hoʻopau ʻia i ka mālama ʻana i ka wela me ka oxygen manuahi ʻole e like me ka lewa pale, a ʻo nā ʻaoʻao o loko a me waho ʻaʻohe o ka ʻili oxide (kiʻiʻoniʻoni) hanauna, ʻaʻole wale e mālama i ka pololei o ka dimensional mua a me ka maʻalahi, akā hoʻomaikaʻi pū kekahi. ka hana o loko o ka paipu kila, kūpono ia no nā ʻano hana hohonu.Hoʻohana ʻia i nā ʻoihana hana kaʻa like ʻole no ka lawe ʻana i ka aila a me ke kinoea (brake braking), nā ʻōnaehana infusion, me nā sedans, nā kaʻa kaʻa, nā locomotives (locomotives), nā mīkini hana like ʻole (excavators, nā kaʻa hana aerial, bulldozers, hoʻomaʻemaʻe i nā kaʻa, nā kaʻa paila pahu), etc. He mea kūpono hoʻi ia no nā ʻōnaehana paipu hydraulic o nā mīkini hydraulic like ʻole, kūpono loa no ka hoʻopili ʻana me nā ʻano hui lima lima, a ʻoi aku ka maikaʻi o kona hopena ma mua o nā pilina welded kuʻuna.
Ka laulā o ka ʻoihana:
DIN moʻo huki anu a i ʻole ka ʻōwili ʻia ʻana i nā paipu kila maʻemaʻe a me ko lākou mau uhi e pili ana (passivation maʻamau, zinc keʻokeʻo, zinc color, passivation ʻōmaʻomaʻo pūʻali koa) paipu kila, NBK diesel kiʻekiʻe puʻe kila paipu, anti rust phosphating paipu.