Nidaamka isbarbar-dhigga wadaagga ee mataanaha-screw extrusion:
Isku-xidhka, dhululubada waxay qabataa qaab-dhismeedka "dhismaha", oo leh is-beddel wanaagsan, qayb ka mid ah isbeddelka xun ee gabalkaas, ma aha koontada labanlaabantay ilaa inta ay jirto cillad yar oo lagu beddelayo xididka oo dhan.Si sabab la'aan ah ayaa loo isku dari karaa iyadoo loo eegayo tignoolajiyada farsamaynta walxaha kala duwan;Xulashada silinder ee birta nitride, alaabta bimetallic, xirashada adkaysi u leh, iska caabinta daxalka, cimriga adeegga oo dheereeya;Qaybta duntu waxay doorataa birta nitride, birta xawaaraheeda sare leh, oo leh tignoolajiyada farsamaynta gaarka ah, si loo hubiyo ilkaha caadiga ah ee qaybta shaqada