Kugwiritsa ntchito mipira yopera 80mm ndi maziko a ntchito yopera miyala mkati mwa ntchito zamigodi.Makanema amphamvu komanso okulirapo awa amathandizira kwambiri pogaya zitsulo, zomwe zimapereka zabwino zambiri chifukwa cha kukula kwake komanso momwe akupera.
Makamaka, mkati mwa Dongosolo la Ore Grinding, kufunikira kwa mipira yopera 80mm sikungathe kuchepetsedwa.Mipira yokulirapo komanso yoperayi ili m'kati mwa mphero zokulirapo, imagwira ntchito yofunika kwambiri pogaya nyimbo.Kukula kwawo kwakukulu kumawapatsa mphamvu kuti azitha kuchita zinthu zowopsa komanso kuphwanya mphamvu panthawi yolumikizana ndi miyala yaiwisi mkati mwa zida zogayira.Mkhalidwe umenewu ndi wofunikira kwambiri pothandizira kugaya bwino ndi kuchepetsa miyala yaiwisi.Pogwiritsa ntchito kukula kwake kokulirapo komanso pogaya, mipira yachitsulo imeneyi imathandiza kwambiri kuyenga, kupangitsa kuti tinthu tating'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono ting'ono tipangidwe.
Mipira yokulirapo ya 80mm imawapatsa kuthekera kopereka mphamvu komanso kuphwanya mphamvu.Mkhalidwe umenewu ndi wofunika kwambiri kuti tifikitse kugaya bwino ndi kuchepetsa miyala yaiwisi, potero imagwira ntchito yofunika kwambiri pakuyenga ndi kupanga tinthu ting'onoting'ono tomwe timafunikira kuti tichotse mchere.
M'malo mwake, kugwiritsa ntchito mipira yopera 80mm mumigodi makamaka kumayang'ana gawo lawo lofunika kwambiri logaya zinthu mkati mwa mphero.Kukula kwawo kwakukulu ndi kugaya kwawo kumawakonzekeretsa kuti agwiritse ntchito mphamvu zazikulu komanso kuphwanya mphamvu, zomwe zimathandizira kuti kugaya bwino ndi kuchepetsa ore yaiwisi.Izi zimabweretsa kupanga tinthu tating'onoting'ono tating'ono tomwe timafunikira kunsi kwa mitsinje ya kukumba mchere, ndikugogomezera kufunika kokulirapo komanso kugaya pogaya media munjira yopera miyala mkati mwa ntchito zamigodi.