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.

Yiri ejima screw Barrel: Co-rotting vs Counter-rotting, Ụdị & Ngwa

2026-08-13 0 Hapụ m ozi

Site naOtu nka nka Nanhaiya- Screw & Barrel Engineering, Zhoushan · Nyochaa maka izi ezi ụlọ ọrụ · ~ 9 min gụọ

Azịza ngwa ngwa

Obere gbọmgbọm ejima ejima na-ejikọta ya nwere skru abụọ na-emekọrịta ihe nke dayameta mgbe niile na-agba n'akụkụ n'akụkụ n'ime gbọmgbọm ejima dabara adaba. N'adịghị ka gbọmgbọm conical, kposara ahụ na-anọ otu nha na njedebe na njedebe, a na-ewukwa gbọmgbọm ahụ site na akụkụ. Co-na-atụgharị yiri kposara uwe compounding, granulation na masterbatch; skru na-agbanwe agbanwe dabara na PVC na ọrụ dị elu.

Nkemyirịta ejima ịghasa gbọmgbọmbụ workhorse nke compounding na pelletizing - n'ebe ọ bụla ị chọrọ kpụ ọkụ n'ọnụ ịgwakọta, kpọmkwem okpomọkụ akara na mgbanwe reconfigure na ịghasa maka ọhụrụ usoro. N'ebe a na-ewu gbọmgbọm conical maka extrusion PVC kpọmkwem, a na-arụ otu mkpọ mkpọda maka mgbanwe. Ntuziaka a na-akọwa otú o si arụ ọrụ, ọdịiche dị oke mkpa n'etiti nhazi na-atụgharị na ntụgharị ihu, akụkụ (ihe mgbochi ụlọ) nke na-eme ka ọ gbanwee, na otu esi ahọrọ nke ziri ezi maka ihe gị.

Parallel twin screw barrel (counter-rotating) manufactured by Nanhaiya — Ihe nkedo ejima na gbọmgbọm - kposara dayameta mgbe niile n'ime gbọmgbọm ejima nwere agbakọ.

Gịnị bụ ejima skru barrel?

Otu gbọmgbọm mkpọsa na-ejikọta ya na-ejide skru abụọ nke otu dayameta site na nri ruo na mwepụta, na-agba ọsọ n'ime ihe ejima asatọ. N'ihi na dayameta na-adịgide adịgide, a na-edozi omume nhazi site na ịghasanhazikama site taper - ị na-agbanwe arụmọrụ site n'ịgbanwe ihe ịghasa, ọ bụghị ụdị gbọmgbọm. Ọ bụ ya mere ejima ejima na sistemu gbọmgbọm na-achịkọta ọnụ: otu igwe ahụ nwere ike ịme usoro ntụziaka dị iche iche site n'ịrụghachi ihe nkedo.

Ihe abụọ na-akọwapụta otu ejima ịghasa gbọmgbọm: ntụzịaka nke skru na-atụgharị (na-atụgharị ma ọ bụ na-atụgharị), na otu esi ewulite gbọmgbọm na ịghasa (na-emekarị site na akụkụ). Ekpuchiri ha abụọ n'okpuru. Maka igwe n'okpuru, hụ onye nkọwa anyị naka ejima ejima skru si arụ ọrụ.

Co-atụgharị vs counter-atụgharị

Nke a bụ ihe dị oke mkpa n'ime ezinụlọ ndị yiri ya. Ha abụọ bụ atụmatụ ejima-skru intermeshing, mana ha na-ebufe ma na-agwakọta dị iche iche.

Ihe kpatara ya	Myirịta na-emekọ ọnụ	Myirịta na-agbanwe agbanwe
Mkpọgharị ntụgharị	Ihe nkedo abụọ ahụ na-atụgharị n'otu ụzọ ahụ	Kpọsara na-atụgharị n'akụkụ ndị ọzọ
Ngwakọta	Akwa-shia, magburu onwe nkesa & mgbasa ozi ngwakọta	Nwayọọ nwayọọ, dị ka kalenda, nnyefe dị mma
Ọsọ ọsọ	Ọsọ ịghasa dị elu, mmepụta dị elu	Ọsọ dị ala, na-ewulite nrụgide kwụ ọtọ
Kachasị mma maka	Ngwakọta, masterbatch, granulation, jupụtara/glaasi-fiber	PVC ọkpọkọ/profaịlụ, okpomọkụ na-enwe mmetụta, PVC dị elu
Nwee mmetụta	Igwe na-agwakọta agwa nwere ike ịhazigharị	Igwe ọkụ dị ka mgbapụta, dị nro "igwe extrusion"

Na nkenke: ihe nkedo ejima na-emekọ ihe bụ ngwá ọrụ maka ịgwakọta na mgbasa; skru ejima na-agbanwe agbanwe bụ ngwa maka ibufe PVC dị nro ma kwụ ọtọ. Ọtụtụ osisi nwere ma. Ọ bụrụ na ọrụ gị na-atụgharị ihe ndị na-emepụta ka ọ bụrụ pellets, ịchọrọ ịmekọ ọnụ; Ọ bụrụ na ọ na-atụgharị PVC akọrọ-agwakọta n'ime ọkpọkọ ma ọ bụ profaịlụ, counter-rotting (ma ọ bụ conical gbọmgbọm) ka mma dabara.

Segmented parallel twin screw elements on a shaft

Akụkụ (ihe mgbochi ụlọ) imewe gbọmgbọm

Ọtụtụ usoro ndị yiri ya bụ modular: gbọmgbọm ahụ bụ akụkụ nke jikọtara ọnụ yana ịghasa ihe ndị nwere mkpịsị ugodi etinyere n'elu osisi. Usoro a "ụlọ-ngbochi" bụ ihe na-enye ọnụ ahịa ejima ịghasa gbọmgbọm mgbanwe ya - ị nwere ike idowe ngalaba ndepụta, ọtụtụ ngalaba ngwakọta, ikuku ikuku na akụkụ metering kpọmkwem ebe usoro nhazi chọrọ ha, na gbanwee ihe ndị a na-eyi ma ọ bụ na-ekwesịghị ekwesị n'otu n'otu kama dochie ihe nkedo dum.

Uru bara uru:

Enwere ike ịhazigharị ya- wughachi profaịlụ nke skru maka usoro ọhụrụ na-enweghị igwe ọhụrụ.
Akụkụ iyi ezubere iche- dochie naanị akụkụ eyi, ọ bụghị dum ịghasa na gbọmgbọm.
Na-eku ume ebe ị chọrọ ya- ngalaba ikuku ikuku maka mmiri na mwepụ na-adịghị agbanwe agbanwe.
Mix ike na ina- tinye ma ọ bụ wepụ ihe mgbochi igwakorita ka ọ na-akụ shiee.

Yiri vs conical ejima ịghasa gbọmgbọm

Ndị na-azụ ahịa na-atụkarị ihe myirịta megide aconical ejima ịghasa gbọmgbọm. Iwu dị mkpirikpi: conical maka extrusion PVC kpọmkwem, yiri maka ịgbakọta na ịchọ ịgwakọta.

Ihe kpatara ya	Ejima ịghasa gbọmgbọm	gbọmgbọm ejima conical
Ụdị ịghasa	Dayameta mgbe niile, kewara	Tapered, obosara ndepụta ka warara anwụ anwụ
Ike	Ngwakọta, mgbasa, mgbanwe	Nri dị elu & mkpakọ n'ogologo ogologo
Kachasị mma maka	Granulation, masterbatch, compounding, WPC pellets	PVC ọkpọkọ, profaịlụ, osisi, mpempe akwụkwọ
Ijikwa filler	Ọ dị mma na filler / iko-fiber dị oke elu	Ọ dị mma; gee ntị na ọgwụgwọ elu
Mgbanwe	Profaịlụ ịghasa nwere ike ịhazigharị	Jiometry edobere n'otu nha

Ngwa

N'ihi na profaịlụ nke ịghasa nwere ike na-ege ntị na ọrụ ahụ, otu ejima screw barrel na-ekpuchi ọtụtụ ọrụ. Nhazi niile na Nanhaiya gụnyere:

Granulation & pelletizing- kpochapụwo yiri ọrụ; hụ anyịahịrị ejima ịghasa pelletizing yiri.
Ngwakọta & masterbatch- na-achụsasị pigmenti, ihe mgbakwunye na ihe ndochi n'ime resin na-ebu.
PS na-afụ ụfụ- hụ naPS ụfụfụ myirịta ejima ịghasa.
Aluminom-plastic mejupụtara panel- hụ naaluminom-plastic efere yiri ejima ịghasa.
Rubber & plastic- hụ narọba na plastik yiri ejima ịghasa.
PVC ọkpọkọ (yiri)- maka ahịrị ndị na-aga n'otu n'otu karịa nhazi conical:PVC ọkpọkọ yiri ịghasa gbọmgbọm.

Parallel twin screw pelletizing line for compounding and granulation — Ahịrị ejima screw pelletizing yiri - ụlọ a na-ahụkarị maka gbọmgbọm myirịta na-agbanwe agbanwe.

PS foaming parallel twin screw and barrel — Ihe nkedo ejima na gbọmgbọm arụrụ maka ịfụfụ PS.

Ihe na ọgwụgwọ elu

Ngwakọta bụ ọrụ abrasive - iko fiber, ihe ndị na-ahụ maka ịnweta na ihe ndị dị elu carbonate na-eyi kposara na gbọmgbọm ngwa ngwa - ya mere ihe na ọgwụgwọ elu dị mkpa na usoro yiri ya dị ka na conical. Nanhaiya na-ewulite skru na orù ndị yiri ya site na 38CrMoAlA nitrided steel, W6Mo5Cr4V2 ma ọ bụ HIP ntụ ntụ, yana nitrided, bimetallic ma ọ bụ tungsten-carbide na-ebupụta ka ọ dabara na abrasion nke uzommeputa gị.

Maka ogige ndị jupụtara n'ụba ma ọ bụ iko, elu bimetallic bụ nhọrọ ezi uche dị na ya: alloy anyị agbakwunyere tungsten ruru.62 HRCn'ime oghere - megide 58 HRC nkịtị - maka ogologo ndụ ọrụ. A na-ejigide gbọmgbọm ndị yiri ya na ntachi obi nke ±0.01 mm. Ọ bụrụ na ị na-atụle nhọrọ elu, hụ ntuziaka anyị makabimetallic ịghasa orù, nke na-emetụta nha anya na usoro ndị yiri ya.

Otu esi ahọrọ ezigbo myirịta ejima ịghasa gbọmgbọm

Ajụjụ anọ na-eme ka ị nweta nkọwapụta ziri ezi:

Co- ma ọ bụ counter-atụgharị?Ngwakọta na pelletizing → ngalaba-atụgharị; PVC na iji nwayọọ na-ebufe → counter-atụgharị.
Kedu ihe ị na-ahazi?Ntụziaka na-esetịpụ profaịlụ nke ịghasa - ngwakọta ihe mgbochi maka mgbasa, ikuku maka volatiles.
Kedu ka abrasive si dị?Ihe mkpuchi dị elu ma ọ bụ eriri iko → bimetallic / tungsten-carbide elu.
Kedu igwe?Zipu akara / ihe nlere anya extruder gị ma ọ bụ eserese ka akụkụ na ogwe aka dakọtara kpọmkwem.

Yiri kposara na orù bụ nke ọma omenala na igwe na uzommeputa, otú a osise ma ọ bụ sample gbakwunyere gị ihe na mmepụta na-ahapụ anyị ka anyị hota kpọmkwem dabara adaba.otu, yiri ma ọ bụ conical ịghasa gbọmgbọm - ma ọ bụ zuru ezuigwe extruder- n'ime awa 12.

Ajụjụ a na-ajụkarị

Gịnị bụ ejima skru barrel?

Ọ bụ gbọmgbọm ejima nwere skru abụọ na-agbakọ ọnụ na dayameta mgbe niile na-aga n'akụkụ. N'adịghị ka gbọmgbọm conical, kposara ahụ na-anọ otu njedebe na njedebe na usoro a na-ekewakarị, ya mere enwere ike ịmegharị profaịlụ nke screw maka nhazi dị iche iche.

Kedu ihe dị iche n'etiti ntughari na ntụgharị?

Ihe nkedo na-atụgharị na-atụgharị na-atụgharị n'otu ụzọ ahụ ma na-enye ngwakọta dị elu na nnukwu ọsọ - dị mma maka ịmepụta na masterbatch. Ihe nkedo na-atụgharị na-atụgharị na-atụgharị n'ụzọ dị nro na nnyefe dị ka mgbapụta - ka mma maka PVC na ọkụ na-ekpo ọkụ, ọrụ dị elu.

Kedu ihe bụ akụkụ (ihe mgbochi ụlọ) jikọtara ọnụ ejima skru barrel?

Ọ bụ ihe a na-eme modular ebe gbọmgbọm ahụ bụ akụkụ nke jikọtara ọnụ yana skru bụ ihe ndị nwere igodo n'elu aro. Ị nwere ike idowe ndepụta nri, ịgwakọta, akụkụ ikuku na metering dị ka usoro nhazi chọrọ, ma dochie naanị akụkụ ahụ eyighị ya kama ịghasa dum.

Myiri ma ọ bụ conical ejima screw barrel - nke ka m chọrọ?

Họrọ conical maka ọkpọkọ PVC kpọmkwem, profaịlụ, bọọdụ na extrusion mpempe akwụkwọ. Họrọ myirịta maka granulation, compounding, masterbatch na nnukwu ihe ndochi ma ọ bụ iko-fiber dispersion, ebe ngwakọta reconfigurable kacha mkpa.

Kedu ihe ejima ejima skru barrel eme ihe?

tumadi granulation na pelletizing, compounding na masterbatch, PS ụfụfụ, aluminum-plastic composite panel, roba na plastic, na yiri-layout PVC ahịrị. Profaịlụ skru nke a na-emegharị emegharị na-ahapụ otu igwe ijikwa ọtụtụ ntụziaka.

Kwesịrị inwe barel yiri nitrided ma ọ bụ bimetallic?

Ngwakọta dị ọcha nwere ike ịgba ọsọ nitrided. Ezi ntụziaka abrasive - nnukwu ihe na-eme ka ịnweta mineral, fiber glass, high carbonate - kwesịrị ịbụ bimetallic; Ngwakọta tungsten agbakwunyere na-eru 62 HRC na-eguzogide abrasion ahụ ogologo oge karịa obere nitrided.

Gịnị bụ ihe ejima skru extruder yiri?

Ọ bụ igwe nke nwere mkpirisi ejima na gbọmgbọm, na-emekọ ọnụ maka ịgbakọta na pelletizing. The gbọmgbọm na ịghasa bụ eyi obi nke igwe na-dakọtara na extruder na uzommeputa.

Kedu otu m ga-esi tụọ barel nke screw barrel ziri ezi?

Gwa anyị njikọ-ma ọ bụ counter-atụgharị, ihe gị na mmepụta ya, ka usoro nhazi ahụ si emebi emebi, yana ụdị extruder gị ma ọ bụ ihe osise. Na ndị ahụ, anyị na-ezipụta akụkụ, ịghasa profaịlụ na elu ọgwụgwọ na see okwu n'ime 12 awa.

Ngwaahịa metụtara sitere na ụlọ ọrụ anyị

Aluminum-Plastic Plate Parallel Twin Screw

Aluminom-Plastic Plate Parallel Twin Screw

Rubber na Plastic Parallel Twin Screw

PS Foaming Parallel Twin-Screw

PVC Pipe Parallel Screw Barrel

Ahịrị ejima ịghasa Pelletizing Yiri

Ejima ịghasa Extruder

Nweta gbọmgbọm ejima skru nke dabara na nhazi gị

Gwa anyị ọnụ-ma ọ bụ counter-atụgharị, ihe gị na mmepụta, na ihe extruder gị - ndị injinia anyị ga-akọwapụta akụkụ, profaịlụ ịghasa na ọgwụgwọ elu. Maka ogige abrasive, barel bimetallic tungsten anyị na-eru 62 HRC n'ime oghere maka ogologo ndụ ọrụ.

Nweta nkwuputa n'ime awa 12 →

Nanhaiya (Zhoushan) Plastic Machinery · 500+ zuru ụwa ọnụ ahịa ·yiri, conical & otuịghasa orù &igwe extruder