A izixhobo zecylindricaliseti, edla ngokubizwa ngokuba “ziigiya,” ineegiya ezimbini okanye ngaphezulu ezisilinda namazinyo adibanayo ukuze adlulise intshukumo namandla phakathi kweeshafti ezijikelezayo. Ezi giya zizinto ezibalulekileyo kwiinkqubo ezahlukeneyo zoomatshini, kubandakanya iibhokisi zegiya, ukuhanjiswa kweemoto, oomatshini bemizi-mveliso, nokunye.
Iisethi zegiya ze-Cylindrical zinezinto ezininzi kwaye ziyimfuneko kuluhlu olubanzi lweenkqubo zoomatshini, ukubonelela ngokusasazwa kwamandla okusebenzayo kunye nokulawula ukunyakaza kwizicelo ezingenakubalwa.