Chida ichi chimagwiritsidwa ntchito kwambiri pobowola ndi slot mphero ya mbale, flange ndi mbali zina.
Zobowola simenti za carbide zitha kugwiritsidwa ntchito pobowola mkati mozizira kwambiri kapena pobowola kunja kwa chitsulo chothamanga kwambiri.
Njira yopangira makina imayendetsedwa mowerengeka pobowola, yomwe ndiyosavuta kugwiritsa ntchito, ndipo imatha kuzindikira zodziwikiratu, kulondola kwambiri, zinthu zingapo komanso kupanga batch yaying'ono ndi yapakatikati.
Utumiki ndi chitsimikizo