Bihuye nibisabwa bitandukanye bya diameter ya pipe nibisohoka, hari ubwoko bubiri bwa SJZ80 na SJZ65 bidasanzwe twin-screw extruders itabishaka; imiyoboro ibiri ipfa ikwirakwiza ibintu bisohoka, kandi umuvuduko wo gusohora umuyoboro uhita ushyirwa mubikorwa. Isanduku yo gukonjesha kabiri-vacuum ikonjesha irashobora kugenzurwa ukwayo, kandi imikorere yo guhindura iroroshye mubikorwa byo gukora. Imashini ikata ivumbi, sitasiyo ebyiri yigenga kugenzura, umuvuduko wihuse, uburebure bukwiye. Kuzunguruka clamps ikuraho gukuraho gukenera clamps. Hamwe nibikoresho bya chamfering birashoboka.