1. I loko o ka ʻoihana mīkini mīkini, 85% o ka ʻōnaehana hoʻoili mīkini e hoʻohana i ka hoʻoili hydraulic a me ka mana. E like me ka grinder, milling machine, planer, broaching machine, press, shearing machine, combined machine tool, etc.
2. I loko o ka ʻoihana metala, hoʻohana ʻia ka ʻenehana hydraulic i loko o ka ʻōnaehana hoʻokele umu uila, ka ʻōnaehana wili wili, ka hoʻopiʻi ʻana i ka kapuahi hāmama, ka mana hoʻololi, ka mana o ka umu ahi, ka hoʻokaʻawale ʻana a me ka mea hoʻopaʻapaʻa mau.
3. Hoʻohana nui ʻia ka hoʻoili hydraulic i nā mīkini hana, e like me ka excavator, ka mea hoʻoili kaʻa, ka crane kaʻa, bulldozer crawler, tire crane, self-propelled scraper, grader a me vibratory roller.
4. Hoʻohana nui ʻia ka ʻenehana hydraulic i nā mīkini mahiʻai, e like me ka hui ʻohi, tractor a me ka palau.
5. I loko o ka ʻoihana kaʻa, hoʻohana nā kaʻa hydraulic off-road, hydraulic dump trucks, hydraulic aerial hana kaʻa a me nā kaʻa ahi i ka ʻenehana hydraulic.
6. I loko o ka ʻoihana lole māmā, nā mīkini hoʻoheheʻe ʻia i ka plastic, nā mīkini vulcanizing rubber, nā mīkini pepa, nā mīkini paʻi a me nā mīkini lole e hoʻohana i ka ʻenehana hydraulic.