ʻO ka mīkini ʻōwili uila ke ʻano liʻiliʻi 3-roller mīkini ʻōwili. Hiki i ka mīkini ke hoʻopōloli i ka pā lahilahi i nā awāwa poepoe. ʻO ia kekahi o nā mea hana maʻamau o HVAC. Hoʻolālā nui ʻia ka mīkini ʻōwili uila no ka hoʻomaʻamaʻa ʻana i nā papa lahilahi a me nā ducts puni honua liʻiliʻi. Hoʻokumu ʻia nā ʻauwaʻa poepoe ma o ka hoʻohuli ʻana i nā wili luna a me lalo e hoʻokele i ka pā e hana i ka pōʻai. Loaʻa iā ia kahi hana hoʻopololei mua, ʻo ia ka mea e liʻiliʻi ai nā kihi pololei a ʻoi aku ka maikaʻi o ka hopena o ka ʻōwili. He 1000mm/1300mm/1500mm ka mīkini ʻōwili uila maʻamau a kūpono i nā papa lahilahi 0.4-1.5mm mānoanoa. Paʻa nā wili pōʻai, a ua hana ʻia ke kila kiʻekiʻe e ka wili ʻana e ka CNC lathe, polishing a quenching. He kiʻekiʻe ka paʻakikī a ʻaʻole maʻalahi ke ʻoki ʻia, ʻoi aku ka maikaʻi o ka hana ʻana o ka ʻauamo poepoe.
