Ma Crushers a Jaw amagwiritsidwa ntchito kuchepetsa kukula kwa mitundu yosiyanasiyana yazinthu pazinthu zambiri.Amapangidwa kuti apitirire zofunikira zamakasitomala pamafakitale opangira mchere, kuphatikiza ndi kukonzanso zinthu.Zili ndi zigawo zambiri monga shaft eccentric, ma bearings, flywheels, swing nsagwada (pitman), nsagwada zosasunthika, nsagwada zimafa (nsagwada), ndi zina zotero.
Kupanikizika kwamakina kumeneku kumatheka chifukwa cha nsagwada zokoka za chopondapo, chimodzi chomwe chimakhala choyima pomwe china chimakhala chosunthika.Zisagwada ziwiri zoyima za manganesezi zimafa zimapanga chipinda chophwanyira chooneka ngati V.Makina oyendetsa magetsi amayendetsedwa ndi kugwedezeka komwe kukulendewera kuzungulira tsinde kukhudzana ndi nsagwada zosasunthika zimayenda mobwerezabwereza.Chibwano chogwedezeka chimakhala ndi mitundu iwiri yosuntha: imodzi ndikuyenda molunjika mbali ina ya chipinda chotchedwa stationary jaw die chifukwa cha zochita za mbale yosinthira, ndipo yachiwiri ndikusuntha koyima chifukwa cha kuzungulira kwa eccentric.Izi kuphatikiza zoyenda compress ndi kukankhira zakuthupi kupyola mu chipinda chophwanyira pa mlingo anakonzeratu.