Silinda ya gasi ndi chotengera choponderezedwa kuti chisungidwe komanso kusungitsa mpweya womwe uli pamwamba pa mlengalenga.
Ma cylinders othamanga kwambiri amatchedwanso mabotolo.Mkati mwa silinda zomwe zasungidwa zimatha kukhala mu mpweya wothinikizidwa, nthunzi pamadzimadzi, madzimadzi apamwamba kwambiri, kapena kusungunuka mu gawo lapansi, kutengera mawonekedwe amkati.
Mapangidwe a silinda a gasi amatalikitsidwa, kuyima chowongoka kumapeto kwapansi, ndi valavu ndikuyika pamwamba kuti alumikizane ndi zida zolandirira.