Izilayidi ezisetshenziswa kakhulu zinezinhlobo ezimbili: uhlobo lwe-flange, nohlobo lwesikwele. Eyangaphambili iphansi kancane, kodwa ibanzi kakhulu, futhi imbobo ekhuphukayo iyimbobo enentambo, kuyilapho eyakamuva iphakeme kancane futhi incane, futhi imbobo ekhuphukayo iyimbobo yentambo eyimpumputhe. Zombili zinohlobo olufushane, uhlobo olujwayelekile kanye nohlobo olude, umehluko omkhulu ukuthi ubude bomzimba wesilayidi buhlukile, yiqiniso, isikhala sembobo sembobo ekhuphukayo singase sihluke, isilayidi sohlobo olufushane kakhulu sinezimbobo ezi-2 kuphela.