Camshaft ndi gawo la injini ya piston. Ntchito yake ndikuwongolera valavu yotseguka ndi kutseka. Ngakhale Camsaft imazungulira theka la liwiro la stankshaft mu injini zinayi (The Cassaft imazungulira mu injini yofananira), Camsaft nthawi zambiri imazungulira pa liwiro lalitali ndipo limafunikira torque yambiri. Chifukwa chake, kapangidwe ka kasitomala kumafuna kulimba kwambiri komanso kutsimikizira. Nthawi zambiri imapangidwa ndi chitsulo chapamwamba kapena chitsulo. Kapangidwe ka kamchehaft kumathandiza kwambiri popanga injini chifukwa Lamulo loyenda bwino limakhudzana ndi mphamvu ndi magwiridwe antchito injini.
Camsaft imayang'aniridwa ndi nthawi yayitali. Kupsinjika pakati pa cam ndi turtt ndi chachikulu kwambiri, ndipo kuthamanga kwa wachibale kumakhalanso kokwera kwambiri, kotero kuvala kolowererapo kwa kampu ndi kwakukulu. Poganizira izi, nyuzipepala ya Casashaft ndi Cam Caft iyenera kukhala yolondola kwambiri, kuwuma kakang'ono kang'ono komanso kuuma kokwanira, komanso kuvala bwino kwambiri ndi mafuta abwino.
Camshafts nthawi zambiri amapangidwa kuchokera ku mtundu wapamwamba kwambiri kapena chitsulo chachitsulo, koma iyeneranso kuponyedwa mu alloy kapena chitsulo chopondaponda chitsulo. Malo ogwirira ntchito ndi cam amapukutidwa pambuyo pa kutentha
