1. Njira ya cylindrical roller yokhala ndi mawonekedwe opanda kanthu → kupukuta kapena mphete → yofewa yopera panjira yothamanga → yofewa yopera pankhope ziwiri → njira yotenthetsera → yopukutira isanakwane → yopukutira yapawiri → positi yopukutira yozungulira → yomaliza yopera nkhope → yabwino, yomaliza yogubuduza → yomaliza yogudubuza pamwamba → kuyeretsa, kutayitsa → mawonekedwe omaliza oyendera, kupanga magulu → kuyika mafuta.2. Njira yopangira chodzigudubuza chopanda kanthu → kupukuta kapena mphete → kupukuta kofewa pamtunda → kupukuta kofewa kumapazi awiri → njira yotenthetsera → kupukuta pamwamba → kupukuta pamwamba → kupukuta pamwamba → kupukuta pamwamba → kupukuta komaliza → kutsirizitsa kwambiri kugudubuza pamwamba → kuyeretsa, kutopetsa → Mawonekedwe Omaliza Oyang'anira, Magulu Amagulu → Kupaka mafuta.Ngati convexity ndi zosakwana 0.005 mm, ena odzigudubuza akhoza mwachindunji kukonzedwa mu wapamwamba-kumaliza ndondomeko, munthu akhoza kukhala mu akupera yomaliza ya anagubuduza pamwamba akupera ndondomeko kunja korona, ndiyeno kopitilira muyeso-kumaliza.