Pakali pano, msika wapereka wapadera ntchentche phulusa kuwotcha ufulu njerwa luso makina, akhoza kuimba luso kukwaniritsa ambiri fakitale kupanga, yobwezeretsanso ndi magwiritsidwe zotsalira zinyalala ntchentche phulusa, izi ntchentche phulusa adzakhala extruded mu mawonekedwe, potsiriza anapanga, njerwa kuzindikira ntchitonso msika. Ndiye kwa mtundu uwu wa makina a njerwa momwe angagwiritsire ntchito, chifukwa cha ntchito yake ili ndi chidule chotsatira.

Choyamba, timafunika crusher kuti tiphwanye quicklime. Chachiwiri, tiyenera kuyika zinthu izi mu chopukusira kuti akupera mosamala. Pa nthawi yomweyo, zinyalala zolimba zopangira, monga ntchentche phulusa, ndi sayansi chikufanana ndi molingana. Potsirizira pake, amawaika m’chogudubuza kuti agubuduze bwino, kenaka amaikidwa m’makina ena oumba njerwa kuti apange ndi kuzifinya. Inde, mutatha kuumba ndi kuponderezedwa, iyenera kuumitsidwa kwa masiku pafupifupi 10. Pambuyo kuyanika bwino, ikhoza kugulitsidwa pamsika. Chifukwa chake, ukadaulo wamakina a njerwa opanda phulusa ndi abwino kwambiri, omwe amatha kuzindikira kugwiritsa ntchito kwambiri phulusa la ntchentche. Itha kugwiritsidwa ntchito ngati imodzi mwazinthu zopangira kuti muzindikire kubwezeretsanso. Kuphatikiza apo, kugwiritsa ntchito kwake ndikokwera kwambiri, ndipo kuwononga phulusa la ntchentche kumathandizidwa bwino.