Makina owotcherera a pulasitiki ozungulira nthawi zambiri amagwiritsidwa ntchito kuwotcherera zidutswa ziwiri zozungulira za thermoplastic.Chidutswa chimodzi chimayikidwa pansi pa nkhungu, ndipo chinacho chimayikidwa pazitsulo zozungulira za servo.Chifukwa cha kukakamizidwa kwina komwe kumagwira ntchito ziwirizo Pachidutswa chogwira ntchito, kudzera pakukangana kothamanga kothamanga kwapamwamba ndi kumunsi kozungulira kozungulira, kukangana kwa malo olumikizirana opangidwa ndi zida zapamwamba ndi zotsika kumatenthedwa, ndipo makina amawotchera. mphamvu imasandulika kukhala mphamvu ya kutentha.Zidutswa ziwirizi zimalumikizidwa pamodzi kuti zikhale zophatikizika kosatha ndikupanga zolimba komanso zopanda mpweya, kukwaniritsa zofunikira zowotcherera.