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.

Parallel Twin Screw Barrel: Mai Juyawa vs Mai Juyawa, Nau'i & Aikace-aikace

2026-08-13 0 Ka bar min sako

By theKungiyar Fasaha ta Nanhaiya- Screw & Barrel Engineering, Zhoushan · An yi bita don daidaiton masana'anta · karanta min 9

Amsa da sauri

Ganga mai dunƙule tagwaye mai kama da juna tana da tsaka-tsaki biyu masu tsaka-tsaki na diamita akai-akai suna tafiya gefe da juna a cikin ganga tagwaye mai kama da juna. Ba kamar ganga conical ba, screws suna tsayawa daidai girman girman ƙarshen zuwa ƙarshe, kuma yawancin ganga ana gina su daga sassa. Co-juyawa a layi daya sukurori dace compounding, granulation da masterbatch; counter-juyawa daidaici sukurori dace PVC da high-filler aiki.

Thelayi daya tagwayen dunƙule gangashine dokin aiki na haɗawa da pelletizing - a ko'ina kuna buƙatar haɗuwa mai ƙarfi, daidaitaccen sarrafa zafin jiki da sassauci don sake saita dunƙule don sabon tsari. Inda aka gina ganga conical don extrusion na PVC kai tsaye, an gina ganga mai kama da dunƙule don dacewa. Wannan jagorar yana bayyana yadda yake aiki, muhimmin bambanci tsakanin ƙirar haɗin gwiwa da jujjuyawar juye-juye, tsarin sashi (block-blocker) wanda ya sa ya zama mai sassauƙa, da yadda za a zaɓi wanda ya dace don kayan ku.

Parallel twin screw barrel (counter-rotating) manufactured by Nanhaiya — A layi daya tagwaye dunƙule da ganga - akai-akai diamita sukurori a cikin madaidaicin tagwayen-haji ganga.

Menene daidaici tagwayen dunƙule ganga?

Ganga mai kamanceceniya tana riƙe da dunƙule guda biyu na diamita ɗaya daga ciyarwa zuwa fitarwa, tana gudana a cikin tagwayen ƙira guda takwas. Saboda diamita yana dawwama, ana saita halayen sarrafawa ta dunƙuledaidaitawamaimakon ta taper - kuna canza aikin ta hanyar canza abubuwan dunƙule, ba siffar ganga ba. Shi ya sa tsarin tagwayen dunƙule da ganga masu daidaitawa suka mamaye haɗawa: injin iri ɗaya na iya aiwatar da girke-girke daban-daban ta hanyar sake gina dunƙule.

Abubuwa guda biyu suna bayyana daidaitaccen ganga tagwayen dunƙulewa: alkiblar da screws ke juya (juyawa ko jujjuyawa), da kuma yadda ake gina ganga da dunƙule (yawanci daga sassa). Dukansu an rufe su a ƙasa. Don injiniyoyin da ke ƙasa, duba mai bayanin mu akanyadda madaidaicin tagwayen dunƙule yake aiki.

Co-rotting vs counter-juyawa

Wannan shine mafi mahimmancin bambanci a cikin dangi mai kama da juna. Dukansu ƙirar tagwayen dunƙule ne masu tsaka-tsaki, amma suna isarwa kuma suna haɗuwa sosai.

Factor	Daidaitawar jujjuyawar haɗin gwiwa	Daidaitawar jujjuyawa
Juyawa juzu'i	Duk sukurori suna juya hanya ɗaya	Sukullun suna juya gaba da gaba
Hadawa	Babban ƙarfi, kyakyawan rarrabawa & hadawa mai tarwatsewa	Mai tausasawa, kamar kalanda, isarwa mai inganci
Matsakaicin saurin gudu	Babban saurin dunƙulewa, babban fitarwa	Ƙarƙashin saurin gudu, ginannen matsa lamba
Mafi kyau ga	Hadawa, masterbatch, granulation, cika/gilashi-fiber	PVC bututu / profile, zafi-m, high-filler PVC
Ji	Na'ura mai haɗawa da sake daidaitawa	Mai kama da famfo, a hankali "na'urar extrusion"

A takaice: dunƙule tagwaye mai jujjuyawa shine kayan aiki don haɗawa da watsawa; dunƙule tagwaye mai jujjuya juzu'i shine kayan aiki don a hankali, madaidaiciyar isar da PVC. Tsire-tsire da yawa sun mallaki duka biyun. Idan aikinku yana juya kayan abinci zuwa pellets, kuna son juyawa; idan yana jujjuya busasshen busassun PVC zuwa bututu ko bayanin martaba, jujjuyawar juzu'i (ko ganga mai ɗaci) ya fi dacewa.

Segmented parallel twin screw elements on a shaft

Ƙirar ganga (bulogin gini).

Yawancin tsarin layi ɗaya na zamani ne: ganga an yi shi ne da ɓangarori masu haɗaka da dunƙule abubuwa masu maɓalli waɗanda aka zare akan sanda. Wannan tsarin "block block" shine abin da ke ba madaidaicin tagwayen dunƙule ganga da sassauci - za ku iya sanya sashin abinci, sassa daban-daban na haɗawa, huɗa da sashin mita daidai inda girke-girke ke buƙatar su, kuma canza sawa ko abubuwan da ba su dace ba daidaiku maimakon maye gurbin duka dunƙule.

Amfanin aiki:

Mai sake daidaitawa- sake gina bayanin martaba don sabon tsari ba tare da sabon na'ura ba.
Abubuwan lalacewa da aka yi niyya- maye gurbin kawai ɓangaren da aka sawa, ba duka dunƙule da ganga ba.
Fitar da iska a inda kuke buƙata- sassan hurumin matsayi don danshi da cire maras tabbas.
Mix ƙarfi akan buƙata- ƙara ko cire tubalan murɗa don daidaita shear.

Parallel vs conical twin dunƙule ganga

Masu saye sukan auna layi daya da aconical twin dunƙule ganga. A takaice mulki: conical for kai tsaye PVC extrusion, a layi daya domin hadawa da bukatar hadawa.

Factor	Daidaitaccen tagwayen dunƙule ganga	Conical twin dunƙule ganga
Siffar dunƙulewa	Diamita na dindindin, yanki	Tapered, fadi da abinci don kunkuntar mutu
Ƙarfi	Hadawa, watsawa, sassauci	Babban ciyarwa & matsawa a cikin ɗan gajeren tsayi
Mafi kyau ga	Granulation, masterbatch, hadawa, WPC pellets	PVC bututu, profile, allon, takarda
Filler handling	Madalla da babban filler / gilashin-fiber	Mai kyau; tune da surface jiyya
sassauci	Bayanan martaba mai sake daidaitawa	Kafaffen joometry kowane girman

Aikace-aikace

Domin ana iya daidaita bayanin martabar dunƙule zuwa aikin, ganga tagwayen dunƙule mai kama da juna ya ƙunshi ayyuka da yawa. Tsari na gama gari a Nanhaiya sun haɗa da:

Granulation & pelletizing- da classic layi daya aiki; ga mulayi daya da tagwayen dunƙule pelletizing layi.
Hadawa & masterbatch- tarwatsa pigments, additives da filler a cikin guduro mai ɗauka.
PS kumfa- duba daPS kumfa a layi daya tagwaye dunƙule.
Aluminum-plastic composite panel- duba daaluminum-roba farantin layi daya dunƙule tagwaye.
Rubber & filastik- duba daroba da robobi layi daya tagwaye dunƙule.
PVC bututu (daidaici)- don layukan da ke tafiyar da layi ɗaya maimakon shimfidar mazugi:PVC bututu a layi daya dunƙule ganga.

Parallel twin screw pelletizing line for compounding and granulation — Layin layi na dunƙule tagwaye mai layi daya - mafi yawan gida don ganga mai jujjuyawar haɗin gwiwa.

PS foaming parallel twin screw and barrel — A layi daya tagwaye dunƙule da ganga gina don PS kumfa.

Material da surface jiyya

Haɗaɗɗen aiki ne mai ɓarna - fiber gilashi, abubuwan ma'adinai da manyan ɗorawa na carbonate suna sa sukurori da ganga cikin sauri - don haka kayan aiki da jiyya na sama suna da yawa akan tsarin layi ɗaya kamar kan madaidaicin. Nanhaiya tana gina sukurori da ganga masu kama da juna daga 38CrMoAlA nitrided karfe, W6Mo5Cr4V2 ko HIP foda karfe, tare da nitrided, bimetallic ko tungsten-carbide saman don dacewa da abrasion na girke-girke.

Don abubuwan da ke cike da ƙarfi ko gilashin da aka ƙarfafa, farfajiyar bimetallic ita ce zaɓi mai ma'ana: ƙarar tungsten ɗin mu ya kai.62 HRCa ciki - tare da na kowa 58 HRC - don tsawon rayuwar sabis. Ana riƙe ganga masu kama da juna zuwa juriyar ±0.01 mm. Idan kuna auna zaɓuɓɓukan saman, duba jagoran mu zuwabimetallic dunƙule ganga, wanda ya shafi daidai da tsarin layi daya.

Yadda ake zaɓar ganga mai dunƙule tagwaye daidai

Tambayoyi huɗu suna ba ku takamaiman takamaiman bayani:

Haɗin kai ko jujjuyawa?Haɗawa da pelletizing → haɗin gwiwa; PVC da isar da hankali → jujjuyawar juyewa.
Me kuke sarrafa?A girke-girke saita dunƙule profile - hadawa tubalan don watsawa, vents ga volatiles.
Yaya abrasive yake?Babban filler ko fiber gilashi → bimetallic / tungsten-carbide surface.
Wace inji?Aika alama/samfurin ku na extruder ko zane don sassan da shaft ɗin su daidaita daidai.

Daidaitacce sukurori da ganga suna da ingantacciyar al'ada ga na'ura da girke-girke, don haka zane ko samfurin tare da kayanku da fitarwa suna ba mu damar faɗi daidai daidai.guda ɗaya, a layi daya ko conical dunƙule ganga - ko cikakkeinjin extruder- cikin sa'o'i 12.

Tambayoyin da ake yawan yi

Menene daidaici tagwayen dunƙule ganga?

Ganga tagwaye ce mai riqe da kusoshi masu tsaka-tsakin diamita biyu akai-akai waɗanda ke tafiya gefe da juna. Ba kamar ganga conical ba, screws suna tsayawa daidai girman ƙarshen zuwa ƙarshe kuma tsarin yawanci ya rabu, don haka za'a iya sake daidaita bayanin martabar dunƙule don tsari daban-daban.

Menene bambanci tsakanin juyawa da jujjuyawa?

Screws masu jujjuyawar haɗin gwiwa suna juya hanya ɗaya kuma suna ba da haɗuwa mai ƙarfi a babban saurin - manufa don haɓakawa da masterbatch. Sukurori masu jujjuyawar juye-juye suna jujjuya gaba ɗaya tare da sauƙi, isarwa mai kama da famfo - mafi kyau ga PVC da zafin zafi, aikin filler.

Menene juzu'i (block-bulo) mai layi daya da ganga dunƙule tagwaye?

Zane ne na yau da kullun inda ganga ɗin ke da ɓangarori tare da dunƙule abubuwa masu maɓalli a kan sandar. Kuna iya sanya ciyarwa, haɗawa, huɗa da sassan awo kamar yadda girke-girke ke buƙata, kuma maye gurbin sashe kawai da aka sawa maimakon duka dunƙule.

Daidaitacce ko conical twin dunƙule ganga - wanne nake bukata?

Zaɓi conical don bututun PVC kai tsaye, bayanin martaba, allo da extrusion takarda. Zaɓi layi daya don granulation, haɗawa, masterbatch da babban filler ko tarwatsewar fiber-gilashi, inda abubuwan haɗaɗɗen sake daidaitawa suka fi dacewa.

Menene daidaitattun tagwayen dunƙule ganga da ake amfani dashi?

Yafi granulation da pelletizing, compounding da masterbatch, PS kumfa, aluminum-filastik hada panel, roba da filastik, da layi daya-layout PVC Lines. Bayanan martaba na dunƙule mai kunnawa yana ba da damar inji ɗaya sarrafa girke-girke da yawa.

Shin ya kamata a yi daidai da ganga nitrided ko bimetallic?

Mahalli mai tsabta na iya tafiyar da nitrided. Girke-girke na abrasive - babban ma'adinan ma'adinai, fiber gilashi, babban carbonate - ya kamata ya zama bimetallic; abin da aka ƙara tungsten wanda ya kai 62 HRC yana tsayayya da wannan lalatar fiye da ƙaramin nitrided na bakin ciki.

Menene madaidaicin tagwayen dunƙule extruder?

Ita ce injin ɗin da ke ɗauke da dunƙule tagwayen dunƙule da ganga mai kama da juna, yawanci mai jujjuyawa don haɗawa da pelletizing. Ganga da dunƙule su ne lalacewa zuciyar na'ura kuma sun dace da extruder da girke-girke.

Ta yaya zan yi oda daidai daidai gwargwado tagwaye dunƙule ganga?

Faɗa mana haɗin kai ko jujjuyawar gaba, kayan aikinku da fitarwa, yadda girke-girke yake da ɓarna, da tambarin ku/samfurin ku ko zane. Tare da waɗancan, mun ƙididdige sassan, bayanin martaba da jiyya da jiyya da faɗi cikin sa'o'i 12.

Abubuwan da ke da alaƙa daga masana'anta

Aluminum-Plastic Plate Parallel Twin Screw

Rubber And Plastic Parallel Twin Screw

PS Kumfa Parallel Twin-Screw

PVC bututu Parallel dunƙule ganga

Layin Twin Screw Pelletizing Line

Twin Screw Extruder

Samu ganga tagwayen dunƙule daidai gwargwado wanda ya dace da girkin ku

Faɗa mana haɗin kai ko jujjuyawa, kayan aikin ku da fitarwa, da samfurin ku na extruder - injiniyoyinmu za su ƙididdige sassan, bayanin martaba da jiyya na saman. Don abubuwan da ba su da ƙarfi, ganga bimetallic ɗinmu da aka ƙara tungsten ya kai 62 HRC a cikin buro don tsawon rayuwar sabis.

Samu ƙididdiga a cikin sa'o'i 12 →

Nanhaiya (Zhoushan) Injin Filastik · 500+ abokan ciniki na duniya ·a layi daya, conical & guda ɗayadunƙule ganga &injunan extruder