Makinawa amagwiritsa ntchito makina oyendetsera magetsi, omwe ndi okhazikika komanso odalirika, pamwamba pa zinthu zodulidwa ndi zowala komanso zoyera, kukula kwake ndi kofanana, koyera, ndipo magwiridwe antchito ake ndi apamwamba; pali maso a photoelectric kumanzere ndi kumanja, komwe ndi kotetezeka kugwiritsa ntchito; nsanja yonyamulira katundu ikhoza kusinthidwa isanayambe komanso itatha kumanzere ndi kumanja komanso yonse, yomwe ndi yosavuta kugwiritsa ntchito.