What is a parallel twin screw barrel?

It is a twin-bore barrel holding two constant-diameter intermeshing screws that run side by side. Unlike a conical barrel, the screws stay the same size end to end and the system is usually segmented, so the screw profile can be reconfigured for different formulations.

What is the difference between co-rotating and counter-rotating?

Co-rotating screws turn the same way and give high-shear mixing at high speed — ideal for compounding and masterbatch. Counter-rotating screws turn oppositely with gentler, pump-like conveying — better for PVC and heat-sensitive, high-filler work.

What is a segment (building-block) parallel twin screw barrel?

It is a modular design where the barrel is bolt-together sections and the screw is keyed elements on a shaft. You can position feed, mixing, vent and metering sections as the recipe needs, and replace only the worn segment instead of the whole screw.

Parallel or conical twin screw barrel — which do I need?

Choose conical for direct PVC pipe, profile, board and sheet extrusion. Choose parallel for granulation, compounding, masterbatch and very high-filler or glass-fibre dispersion, where reconfigurable mixing matters most.

What is a parallel twin screw barrel used for?

Mainly granulation and pelletizing, compounding and masterbatch, PS foaming, aluminum-plastic composite panel, rubber and plastic, and parallel-layout PVC lines. The tunable screw profile lets one machine handle many recipes.

Should a parallel barrel be nitrided or bimetallic?

Clean compounds can run nitrided. Abrasive recipes — high mineral filler, glass fibre, high carbonate — should be bimetallic; a tungsten-added alloy reaching 62 HRC resists that abrasion far longer than a thin nitrided case.

What is a parallel twin screw extruder?

It is the machine that houses a parallel twin screw and barrel, typically co-rotating for compounding and pelletizing. The barrel and screw are the wear heart of the machine and are matched to the extruder and the recipe.

How do I order the right parallel twin screw barrel?

Tell us co- or counter-rotating, your material and output, how abrasive the recipe is, and your extruder brand/model or a drawing. With those, we specify the segments, screw profile and surface treatment and quote within 12 hours.

I-Parallel Twin Screw Barrel: I-Co-rotation vs Counter-Rotate, Izinhlobo Nezinhlelo zokusebenza

2026-08-13 0 Ngishiyele umlayezo

Ngo-Ithimba Lezobuchwepheshe leNanhaiya— IScrew & Barrel Engineering, Zhoushan · Kubuyekezwe ukunemba kwefekthri · ~9 amaminithi afundiwe

Impendulo esheshayo

I-parallel twin screw barrel inezikulufu ezimbili ezihlanganayo ezinobubanzi obungaguquki zigijima eduze emgqonyeni wamawele amabili afanayo. Ngokungafani nomgqomo we-conical, izikulufa zihlala zilingana nosayizi ofanayo ekupheleni, futhi umgqomo uvame ukwakhiwa kusuka ezingxenyeni. Izikulufu ezizungezayo ezihambisanayo zihambisana nokuhlanganisa, i-granulation kanye ne-masterbatch; izikulufo ezihambisanayo ezijikelezayo zihambisana ne-PVC nomsebenzi wokugcwalisa okuphezulu.

Ii-i-parallel twin screw barreliyihhashi lokusebenzela lokuhlanganisa kanye ne-pelletizing - noma yikuphi lapho udinga ukuxuba okujulile, ukulawulwa okunembile kwezinga lokushisa kanye nokuguquguquka kokumisa kabusha isikulufu sokwakheka okusha. Lapho umphongolo oyi-conical wakhelwe ukukhishwa okuqondile kwe-PVC, i-parallel screw barrel yakhelwe ukwenza izinto ezihlukahlukene. Lo mhlahlandlela uchaza ukuthi usebenza kanjani, umehluko obalulekile phakathi kwemiklamo ezungezisayo kanye nephenduphendukayo, isakhiwo sengxenye (ibhulokhi yokwakha) elenza livumelane nezimo, kanye nendlela yokukhetha elifanele lempahla yakho.

Parallel twin screw barrel (counter-rotating) manufactured by Nanhaiya — I-parallel twin screw and barrel — izikulufu ezinobubanzi obungashintshi emgqonyeni wamawele amabili afanayo.

Yini i-parallel twin screw barrel?

I-parallel screw barrel ibamba izikulufu ezimbili ezinobubanzi obufanayo ukusuka kokuphakelayo kuye ekukhishweni, zigijima nge-twin bore yesibalo esiyisishiyagalombili. Ngenxa yokuthi ububanzi buhlala njalo, ukuziphatha kokucubungula kusethwa yisikulufuukumisaesikhundleni se-taper - ushintsha ukusebenza ngokushintsha izici zesikulufu, hhayi ukwakheka komgqomo. Yingakho ama-parallel twin screw kanye namasistimu omgqomo ebusa ukuhlanganisa: umshini ofanayo ungasebenzisa izindlela zokupheka ezihluke kakhulu ngokwakha kabusha isikulufu.

Izinto ezimbili zichaza i-parallel twin screw barrel: isiqondiso lapho izikulufu zijika khona (zizungeza ndawonye noma zizungezise), kanye nendlela umphongolo nesikulufu okwakhiwa ngayo (imvamisa kusuka kumasegimenti). Zombili zihlanganiswe ngezansi. Ukuze uthole oomakhenikha abangaphansi, bheka umchazi wethu kusisebenza kanjani isikulufu esingamawele ahambisanayo.

Ukuzungezisa ngokubambisana vs ukuzungezisa

Lona umehluko obaluleke kakhulu emndenini ofanayo. Zombili ziyimiklamo ye-twin-screw, kodwa idlulisa futhi ixube ngokuhluke kakhulu.

Isici	Ukujikeleza ngokuhambisanayo	Ukuhambisana okuzungezayo
Ukuzungezisa isikulufu	Zombili izikulufu ziphenduka ngendlela efanayo	Izikulufu ziphendukela ezinhlangothini eziphambene
Ukuxuba	I-high-shear, ukuxuba okuhle kakhulu kokusabalalisa nokuhlakazeka	Ubumnene, njenge-calender, ukudlulisa okuhle
Isivinini esijwayelekile	Isivinini esikhulu sesikulufa, okukhiphayo okuphezulu	Isivinini esiphansi, ingcindezi engaguquki yakha
Kuhle kakhulu	Ukuhlanganisa, i-masterbatch, i-granulation, igcwalisiwe/i-glass-fibre	Ipayipi/iphrofayili ye-PVC, izwela ukushisa, i-PVC egcwala kakhulu
Zizwe	"Umshini wokuxuba" olungiseka kabusha	Okufana nephampu, "umshini wokukhipha" omnene

Ngamafuphi: isikulufu esingamawele esijikelezayo siyithuluzi lokuxuba nokusabalalisa; isikulufu samawele esiphikisayo siyithuluzi lokudlulisa i-PVC emnene, enganyakazi. Izitshalo eziningi ziphethe zombili. Uma umsebenzi wakho ukuguqula izithako zibe ama-pellets, ufuna ukujikeleza ngokuhlanganyela; uma iguqula inhlanganisela eyomile ye-PVC ibe ipayipi noma iphrofayili, i-counter-rotation (noma umgqomo oyindilinga) iyona elingana kangcono.

Segmented parallel twin screw elements on a shaft

Ukwakhiwa kwemiphongolo yengxenye (isakhiwo-block).

Amasistimu amaningi ahambisanayo awama-modular: umgqomo wenziwe ngezigaba ezihlangene zebhawodi kanye nesikulufu sezinto ezinokhiye ezifakwe ku-shaft. Le ndlela "yebhulokhi yokwakha" iyona eyenza i-parallel twin screw barrel ikwazi ukuguquguquka - ungabeka isigaba sokuphakelayo, izigaba ezimbalwa zokuxuba, indawo yokukhipha umoya kanye nesigaba sokukala lapho iresiphi idinga khona, futhi ushintshanise izinto ezigugile noma ezingafaneleki ngazinye esikhundleni sokushintsha isikulufu sonke.

Izinzuzo ezingokoqobo:

Iyalungiseka kabusha— yakha kabusha iphrofayili yesikulufu ukuze uthole ukwakheka okusha ngaphandle komshini omusha.
Izingxenye zokugqoka ezihlosiwe- buyisela ingxenye egugile kuphela, hhayi isikulufu sonke kanye nomgqomo.
Ukukhipha umoya lapho uwudinga khona- beka izingxenye zokungena ukuze uthole umswakama kanye nokususwa okuguquguqukayo.
Hlanganisa ukuqina ngokufunwa— engeza noma susa amabhlogo okuxova ukuze ushune ukugunda.

I-Parallel vs i-i-conical twin screw barrel

Abathengi bavame ukukala ukuhambisana no-ai-i-conical twin screw barrel. Umthetho omfushane: i-conical ye-PVC extrusion eqondile, ehambisanayo yokuhlanganisa nokufuna ukuxuba.

Isici	I-i-parallel twin screw barrel	I-i-conical twin screw barrel
Isikulufu umumo	Ububanzi obungaguquki, buhlukanisiwe	I-tapered, i-feed ebanzi yokufa encane
Amandla	Ukuxuba, ukuhlakazeka, ukuguquguquka	Okuphakelayo okuphezulu nokuminyanisa ngobude obufushane
Kuhle kakhulu	Granulation, masterbatch, compounding, WPC pellets	Ipayipi le-PVC, iphrofayili, ibhodi, ishidi
Ukubamba isigcwalisi	Kuhle kakhulu ekugcwaliseni okuphezulu kakhulu / ingilazi-fiber	Kuhle; tune ngokwelashwa kwendawo
Ukuvumelana nezimo	Iphrofayili yesikulufu esilungiseka kabusha	I-geometry elungisiwe ngosayizi ngamunye

Izinhlelo zokusebenza

Ngenxa yokuthi iphrofayili yesikulufu ingashunwa emsebenzini, i-parallel twin screw barrel ihlanganisa umsebenzi omningi. Ukulungiswa okujwayelekile e-Nanhaiya kufaka phakathi:

I-granulation kanye ne-pelletizing- umsebenzi we-classic parallel; bona wethui-i-parallel twin screw pelletizing line.
Ukuhlanganisa & masterbatch- ukuhlakaza ama-pigments, izithasiselo kanye nama-filler ku-resin ethwalayo.
I-PS ikhihliza amagwebu— bonaPS isikulufu esinegwebu esihambisanayo.
Iphaneli ehlanganisiwe ye-aluminium-plastic— bonai-aluminium-plastic plate parallel twin screw.
Irabha nepulasitiki— bonairabha nepulasitiki parallel twin screw.
Ipayipi le-PVC (elihambisanayo)- ngemigqa esebenzisa ukuhambisana kunesakhiwo esiyikhonikhi:Ipayipi le-PVC parallel screw barrel.

Parallel twin screw pelletizing line for compounding and granulation — I-parallel twin screw pelletizing line — ikhaya elijwayeleke kakhulu lombhobho ohambisanayo ozungezayo.

PS foaming parallel twin screw and barrel — Isikulufu esingamawele esihambisanayo kanye nomgqomo owakhelwe ukwenza amagwebu e-PS.

Ukwelashwa kwezinto ezibonakalayo nangaphezulu

Ukuhlanganisa kuwumsebenzi olimazayo - i-glass fibre, izigcwalisi zamaminerali kanye nokulayishwa kwekhabhoni ephezulu kugqoka izikulufu nemiphongolo ngokushesha - ngakho-ke ukunakekelwa kwempahla nengaphezulu kubaluleke kakhulu kusistimu ehambisanayo njengaku-conical. I-Nanhaiya yakha izikulufu ezihambisanayo nemiphongolo kusukela ku-38CrMoAlA nitrided steel, W6Mo5Cr4V2 noma i-HIP powder steel, enezindawo ezine-nitrided, bimetallic noma i-tungsten-carbide ukuze ifane nokuhuzuka kweresiphi yakho.

Ngokuhlanganiswa okugcwele kakhulu noma okuqiniswe ingilazi, indawo ye-bimetallic iyisinqumo esihlakaniphile: ingxube yethu ye-tungsten-added ifinyelela.62 HRCngaphakathi kwebhore - uma kuqhathaniswa ne-58 HRC evamile - impilo ende yesevisi. Imiphongolo ehambisanayo ibanjelwe ekubekezeleleni okungu-±0.01 mm. Uma ukala izinketho zendawo, bheka umhlahlandlela wethu kubimetallic screw imiphongolo, okusebenza ngokulinganayo kumasistimu ahambisanayo.

Indlela yokukhetha i-parallel twin screw barrel efanele

Imibuzo emine ikwenza ube nencazelo efanele:

Co- noma counter-rotation?Ukuhlanganisa kanye ne-pelletizing → ukuzungezisa ngokuhlanganyela; I-PVC nokudlulisa okuthambile → ukuphendukisa ngokuphikisa.
Ucubungula ini?Iresiphi ibeka iphrofayili yesikulufu - amabhlogo wokuxuba wokuhlakazeka, ama-vent for volatiles.
I-abrasive kangakanani?Isigcwalisi esiphezulu noma i-glass fiber → indawo ye-bimetallic / tungsten-carbide.
Muphi umshini?Thumela umkhiqizo/imodeli yakho ye-extruder noma umdwebo ukuze amasegimenti ne-shaft kufane ncamashi.

Izikulufu ezihambisanayo nemiphongolo ngokwezifiso emshinini kanye neresiphi, ngakho-ke umdwebo noma isampula kanye nempahla yakho kanye nokuphumayo kusivumela ukuthi sicaphune okulingana ncamashi.ongashadile, i-parallel noma i-conical screw barrel - noma epheleleumshini we-extruder- phakathi namahora angu-12.

Imibuzo ejwayelekile ukubuzwa

Yini i-parallel twin screw barrel?

Kuwumphongolo onamawele amabili abamba izikulufu ezimbili ezihlala njalo ezinobubanzi obuhambisanayo. Ngokungafani ne-conical barrel, izikulufu zihlala zinosayizi ofanayo ekupheleni futhi isistimu ivamise ukuhlukaniswa, ngakho-ke iphrofayela yesikulufu ingaphinda ilungiselelwe ukwakheka okuhlukile.

Uyini umehluko phakathi kokuzungezisa ngokuhlanganyela nokuzungezayo?

Izikulufu ezizungezisayo ziphenduka ngendlela efanayo futhi zinikeze ukuxuba kwe-shear ephezulu ngesivinini esikhulu - kulungele ukuhlanganisa kanye ne-masterbatch. Izikulufu eziphendukisayo ziphenduka ngokuphambene ngokuhambisa okuthambile, okufana nephampu — okungcono ku-PVC nomsebenzi ozwela ukushisa, ogcwalisa kakhulu.

Iyini ingxenye (ibhulokhi yokwakha) i-parallel twin screw barrel?

Idizayini eyimojula lapho umgqomo uyizingxenye ezihlanganiswe ngebhawodi futhi isikulufu siyizinto ezinokhiye ku-shaft. Ungakwazi ukubeka okuphakelayo, ukuxutshwa, ukungena nokukhipha amamitha njengoba iresiphi idinga, bese ushintsha kuphela ingxenye egugile esikhundleni sesikulufu sonke.

I-parallel noma i-conical twin screw barrel - yini engiyidingayo?

Khetha i-conical yepayipi le-PVC eliqondile, iphrofayili, ibhodi kanye ne-extrusion yeshidi. Khetha ukuhambisana kwembudumbudu, ukuhlanganisa, i-masterbatch kanye nokusabalalisa okuphezulu kakhulu kokugcwalisa noma i-glass-fibre, lapho ukuxuba okulungisekayo kubaluleke kakhulu.

Isetshenziselwa ini i-parallel twin screw barrel?

Ikakhulukazi imbudumbudu ne-pelletizing, inhlanganisela kanye ne-masterbatch, i-PS Foaming, iphaneli eyinhlanganisela ye-aluminium-plastic, irabha nepulasitiki, kanye nemigqa ye-PVC yesakhiwo esihambisanayo. Iphrofayili yesikulufu esiguqulekayo ivumela umshini owodwa ukuthi uphathe izindlela zokupheka eziningi.

Ingabe i-parallel barrel kufanele ibe yi-nitrided noma i-bimetallic?

Izinhlanganisela ezihlanzekile zingasebenza nge-nitrided. Ukupheka kwe-abrasive - i-mineral filler ephezulu, i-glass fiber, i-carbonate ephezulu - kufanele ibe yi-bimetallic; ingxubevange ye-tungsten efinyelela ku-62 HRC imelana nalokho kuhuzuka isikhathi eside kunekesi elincane le-nitrided.

Yini i-parallel twin screw extruder?

Umshini ogcina isikulufu esingamawele ahambisanayo kanye nomgqomo, ngokuvamile ozungezisayo ukuze ahlanganiswe futhi ahlanganiswe. Umgqomo nesikulufu yinhliziyo egugile yomshini futhi ifaniswe ne-extruder kanye neresiphi.

Ngiwu-oda kanjani umphongolo wesikulufa we-twin screw ofanele?

Sitshele ukuzungezisa noma okuphikisayo, okokusebenza kwakho kanye nokuphumayo, ukuthi iresiphi ilume kangakanani, kanye nomkhiqizo/imodeli yakho ye-extruder noma umdwebo. Ngalawo, sicacisa amasegimenti, iphrofayili yesikulufu kanye nokuphathwa kwendawo bese sicaphuna kungakapheli amahora ayi-12.

Imikhiqizo ehlobene evela efekthri yethu

Aluminum-Plastic Plate Parallel Twin Screw

I-Aluminium-Plastic Plate Parallel Twin Screw

Irabha NePlastiki Parallel Twin Screw

I-PS Igwebu I-Parallel Twin-Screw

I-I-PVC Pipe Parallel Screw Barrel

I-I-Parallel Twin Screw Pelletizing Line

I-I-Twin Screw Extruder

Thola i-parallel twin screw barrel efaniswe neresiphi yakho

Sitshele ukuphendukisa okuhlangene noma okuphikisayo, impahla yakho kanye nokuphumayo, kanye nemodeli yakho ye-extruder — onjiniyela bethu bazocacisa amasegimenti, iphrofayili yesikulufu kanye nokuphathwa kwendawo. Kuma-abrasive compounds, imiphongolo yethu ye-bimetallic engezwe nge-tungsten ifinyelela ku-62 HRC ngaphakathi kwebhore impilo ende yesevisi.

Thola isaphulelo phakathi kwamahora angu-12 →

I-Nanhaiya (Zhoushan) Imishini Yepulasitiki · 500+ amaklayenti omhlaba ·ngokuhambisana, i-i-conical & ongashadileizikulufu imiphongolo &imishini extruder