1. I loko o ka ʻoihana mīkini hana, 85% o ka ʻōnaehana hoʻoili mīkini hana e hoʻohana i ka hoʻoili hydraulic a me ka mana. E like me ka wili, ka mīkini wili, ka planer, ka mīkini broaching, ka mīkini paʻi, ka mīkini ʻokiʻoki, ka mīkini mīkini i hui pū ʻia, a pēlā aku.
2. I ka ʻoihana metallurgical, hoʻohana ʻia ka ʻenehana hydraulic i ka ʻōnaehana hoʻomalu umu uila, ka ʻōnaehana hoʻomalu wiliwili, ka hoʻouka ʻana i ka umu hāmama, ka hoʻomalu hoʻololi, ka hoʻomalu umu pahū, ka ʻokoʻa strip a me ka hāmeʻa hoʻomau.
3. Hoʻohana nui ʻia ka hoʻoili hydraulic i nā mīkini kūkulu, e like me ka excavator, ka mea hoʻouka kaila, ka crane kalaka, ka bulldozer crawler, ka crane kaila, ka scraper self-propelled, grader a me ka vibratory roller.
4. Hoʻohana nui ʻia ka ʻenehana hydraulic i nā mīkini mahiʻai, e like me ka mīkini ʻohi hui, ka tractor a me ka palau.
5. I loko o ka ʻoihana kaʻa, hoʻohana nā kaʻa hydraulic off-road, nā kalaka hoʻolei hydraulic, nā kaʻa hana lewa hydraulic a me nā mīkini kinai ahi i ka ʻenehana hydraulic.
6. I loko o ka ʻoihana lole māmā, hoʻohana nā mīkini hoʻoheheʻe inikini palaki, nā mīkini vulcanizing rubber, nā mīkini pepa, nā mīkini paʻi a me nā mīkini lole i ka ʻenehana hydraulic.