Amaroli ayingxenye ebalulekile enqubweni yokugaya okushisayo, adlala indima ebalulekile ekubumbeni nasekwenzeni insimbi ibe imikhiqizo ehlukahlukene. Phakathi kwezinhlobo ezahlukene zamaroli asetshenziswa kule nqubo, i-forged roll, i-work roll, i-backup roll, ne-support roll yizona eziyinhloko ezifaka isandla ekusebenzeni kahle nasezingeni lomshini wokugaya oshisayo.

Amaroli afojiwe akhiqizwa ngenqubo yokubumba nokucindezela insimbi ngaphansi kwengcindezi ephezulu, okuholela kumqulu ominyene futhi oqinile. Lawa ma-roll aziwa ngamandla awo kanye nekhono lawo lokumelana nezimo ezimbi kakhulu zezigayo ezishisayo, okuwenza alungele imisebenzi enzima ehilelekile kule nqubo.

Amaroli okusebenza angolunye uhlobo olubalulekile lwamaroli olusetshenziswa ezigayweni ezishisayo, ezinomthwalo wemfanelo wokufaka ingcindezi ensimbi ukuze igxumeke futhi ilolonge ngokuvumelana nezimfuneko ezidingekayo. Lawa ma-roll angaphansi kwemithwalo ephezulu kanye namazinga okushisa, okudinga ukuthi abe nokuhle kakhulu ukumelana nokugqoka kanye nokuzinza kokushisa ukuze kuqinisekiswe ukusebenza okungaguquki.

Ama-backup rolls ahlinzeka ngokusekela nokulinganisela kuma-roll rolls, okusiza ukugcina ukuzinza nokunemba kwenqubo yokugoqa. Lawa maroli aklanyelwe ukumelana namandla amakhulu asetshenziswa ngesikhathi sokuginqika okushisayo kwensimbi, okuwenza abe ingxenye ebalulekile ekuqinisekiseni ikhwalithi nokunemba komkhiqizo wokugcina.

Amaroli okusekela, njengoba negama liphakamisa, anikeza ukwesekwa okwengeziwe emsebenzini kanye namaroli ekhophi yasenqolobaneni, okunikela ekusebenzeni kahle kanye nokusebenza kahle kwesigayo esishisayo. Lawa ma-roll aklanyelwe ukuphatha amandla asemaceleni futhi aqinisekise ukuqondanisa okufanele kwamanye amaroli, ngaleyo ndlela kuthuthukiswe ukusebenza okuphelele kwenqubo yokugoqa.

Sengiphetha, izinhlobo ezahlukene zamaroli, okuhlanganisa amaroli afojiwe, amaroli omsebenzi, ama-backup rolls, namaroli asekelayo, abalulekile ekusebenzeni ngempumelelo kwezigayo ezigoqayo. Izici nemisebenzi yazo ehlukile inomthelela kwikhwalithi iyonke, ukusebenza kahle, kanye nokunemba kwenqubo yokubumba insimbi, okubenza babe izingxenye ezibalulekile embonini yokukhiqiza.