I-cylinder pad, ekwabizwa ngokuba yi-cylinder liner, iphakathi kwentloko yesilinda kunye nebhloko ye-cylinder. Umsebenzi wayo kukugcwalisa i-microscopic pores phakathi kwentloko ye-cylinder kunye nentloko yesilinda, ukuqinisekisa ukutywina okuhle kwindawo edibeneyo, kwaye ukuqinisekisa ukutywina kwegumbi lokudibana, ukukhusela ukuvuza kwamanzi kunye nejacket yamanzi. Ngokwezixhobo ezahlukeneyo, i-cylinder irhasi yentsimbi inokwahlulwa ibe yintsimbi-i-asbestos yerhasi, intsimbi - irhasi yentsimbi kunye nazo zonke iirhasi zensimbi. I-cylinder pad yitywina phakathi komzimba kunye nezantsi kwentloko yesilinda. Indima yayo kukugcina itywina le-cylinder alivundi, gcina i-coollant kunye neoyile ezihamba emzimbeni ukuya kwintloko ye-cylinder ayivuleki. I-cylinder pad ithwala uxinzelelo olubangelwe ngokuqinisa i-bolt yentloko ye-cylinder, kwaye iphantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu lwegesi kunye nokupholisa.
I-galpad iya kuba ngamandla aneleyo kwaye iya kuba yinto eyonwabileyo, ubushushu kunye nokuzila. Ukongeza, inani elithile le-elasticity liyafuneka ukuhlawula uburharha kunye nokungalingani komphezulu womzimba kunye nomphezulu wentloko ye-cylinder, kunye nokusebenza kwe-injini
