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: Co-rotating vs Counter-rotating, Jinis & Aplikasi

2026-08-13 0 Ninggalake kula pesen

MiturutTim Teknis Nanhaiya— Screw & Barrel Engineering, Zhoushan · Dideleng kanggo akurasi pabrik · ~9 min diwaca

Wangsulan cepet

A tong minyak meneng kembar podo duwe loro ngawut-awut intermeshing diameteripun pancet mlaku sisih dening sisih ing cocog tong minyak kembar-bore. Boten kados tong minyak conical, ngawut-awut tetep ukuran padha mburi kanggo mburi, lan tong minyak biasane dibangun saka perangan. Co-rotating sekrup podo cocog compounding, granulation lan masterbatch; ngawut-awut paralel counter-puteran cocog karo PVC lan karya ngisi dhuwur.

Ingbarel meneng kembar podopunika workhorse saka compounding lan pelletizing - ngendi wae sampeyan kudu nyawiji intensif, kontrol suhu pas lan keluwesan kanggo reconfigure meneng kanggo formulasi anyar. Where tong minyak conical dibangun kanggo PVC extrusion langsung, laras meneng podo dibangun kanggo versatility. Pandhuan iki nerangake cara kerjane, prabédan penting antarane desain co-rotating lan counter-rotating, struktur segmen (blok bangunan) sing nggawe fleksibel, lan carane milih sing pas kanggo materi sampeyan.

Parallel twin screw barrel (counter-rotating) manufactured by Nanhaiya — A meneng kembar podo lan tong minyak - pancet-diameteripun ngawut-awut ing cocog twin-bore tong minyak.

Apa laras sekrup kembar paralel?

A tong minyak meneng podo nyekeli loro ngawut-awut saka diameteripun padha saka feed kanggo discharge, mlaku ing tokoh-wolung bolongan kembar. Amarga diameteripun pancet, prilaku Processing disetel dening menengkonfigurasitinimbang dening taper - sampeyan ngganti kinerja kanthi ngganti unsur meneng, ora wangun tong minyak. Pramila sistem sekrup kembar lan tong minyak podo dominasi compounding: mesin sing padha bisa mbukak resep-resep sing beda-beda kanthi mbangun maneh sekrup.

Rong perkara sing nemtokake laras sekrup kembar sing sejajar: arah sekrup (co-rotating utawa counter-rotating), lan carane laras lan sekrup dibangun (biasane saka segmen). Loro-lorone kasebut ing ngisor iki. Kanggo mekanika dhasar, deleng panjelasan kitacarane meneng kembar podo dianggo.

Co-rotating vs counter-rotating

Iki minangka prabédan paling penting ing kulawarga paralel. Loro-lorone sing intermeshing designs twin-meneng, nanging ngirim lan nyampur banget beda.

Faktor	Co-rotating paralel	Counter-rotating paralel
rotasi meneng	Loro sekrup nguripake kanthi cara sing padha	Screws nguripake ing arah ngelawan
Nyampur	High-shear, pencampuran distributif & dispersif sing apik	Gentler, kaya kalender, ngirim positif
kacepetan khas	Kacepetan meneng sing luwih dhuwur, output dhuwur	Kacepetan sing luwih murah, mbangun tekanan sing stabil
Paling apik kanggo	Compounding, masterbatch, granulasi, diisi/serat kaca	Pipa PVC / profil, sensitif panas, PVC pengisi dhuwur
aran	"Mesin campuran" sing bisa dikonfigurasi maneh	Kaya pompa, "mesin ekstrusi" alus

Ing cendhak: sekrup kembar co-puteran minangka alat kanggo nyampur lan dispersi; meneng kembar counter-puteran iku alat kanggo alus, anteng PVC ngaturaken. Akeh tanduran duwe loro. Yen proyek sampeyan ngowahi bahan dadi pelet, sampeyan pengin co-rotating; yen ngowahi PVC garing-campuran menyang pipa utawa profil, counter-puteran (utawa tong minyak conical) iku luwih pas.

Segmented parallel twin screw elements on a shaft

Segmen (bangunan-blok) desain laras

Umume sistem paralel yaiku modular: tong minyak digawe saka bagean bolt-bareng lan sekrup unsur-unsur kunci sing dipasang ing poros. Pendekatan "bangunan-blok" iki menehi laras sekrup kembar podo karo keluwesan - sampeyan bisa nyelehake bagean feed, sawetara bagean campuran, ventilasi lan bagean metering persis ing ngendi resep mbutuhake, lan ngganti unsur sing rusak utawa ora cocog kanthi individu tinimbang ngganti kabeh sekrup.

Keuntungan praktis:

Bisa dikonfigurasi maneh- mbangun maneh profil meneng kanggo formulasi anyar tanpa mesin anyar.
Diangkah bagean nyandhang- ngganti mung babagan worn, ora kabeh meneng lan tong minyak.
Venting ing ngendi sampeyan butuh- posisi ventilasi bagean kanggo Kelembapan lan molah malih aman.
Nyampur intensitas ing dikarepake- nambah utawa mbusak pamblokiran kneading kanggo nyetel nyukur.

Paralel vs conical twin screw barel

Para panuku asring nimbang podo karo alaras meneng kembar kerucut. Aturan cendhak: conical kanggo PVC extrusion langsung, podo karo kanggo compounding lan nuntut nyawiji.

Faktor	Barel meneng kembar paralel	Conical twin screw barel
Bentuk sekrup	Diameter konstan, dibagi	Tapered, sudhut feed kanggo panah mati
kekuwatan	Nyampur, dispersi, keluwesan	Feed dhuwur & komprèsi ing dawa cendhak
Paling apik kanggo	Granulasi, masterbatch, compounding, pelet WPC	Pipa PVC, profil, papan, lembaran
Penanganan pangisi	Apik banget ing pengisi / serat kaca sing dhuwur banget	apik; tune karo perawatan permukaan
Fleksibilitas	profil meneng reconfigurable	Geometri tetep saben ukuran

Aplikasi

Amarga profil meneng bisa disetel kanggo proyek, tong minyak meneng kembar podo isine sawetara saka sudhut karya. Konfigurasi umum ing Nanhaiya kalebu:

Granulasi & pelletizing- karya podo klasik; ndeleng kitabaris pelletizing meneng kembar podo.
Compounding & masterbatch- nyebar pigmen, aditif lan pengisi menyang resin pembawa.
PS busa- ndeleng ingPS busa podo kembar meneng.
Panel komposit aluminium-plastik- ndeleng ingpiring aluminium-plastik podo meneng kembar.
Karet & plastik- ndeleng ingkaret lan plastik podo meneng kembar.
Pipa PVC (paralel)- kanggo garis sing nganggo tata letak sejajar tinimbang conical:laras meneng sejajar pipa PVC.

Parallel twin screw pelletizing line for compounding and granulation — A baris pelletizing meneng kembar podo - ngarep paling umum kanggo tong minyak podo co-puteran.

PS foaming parallel twin screw and barrel — A meneng kembar podo lan tong minyak dibangun kanggo PS foaming.

Perawatan material lan permukaan

Compounding minangka karya abrasif - serat kaca, pengisi mineral lan muatan karbonat dhuwur nganggo sekrup lan tong kanthi cepet - saéngga bahan lan perawatan permukaan penting ing sistem paralel kaya ing conical. Nanhaiya mbangun sekrup lan tong minyak paralel saka baja nitrided 38CrMoAlA, W6Mo5Cr4V2 utawa baja bubuk HIP, kanthi permukaan nitrided, bimetallic utawa tungsten-carbide kanggo cocog karo abrasi resep sampeyan.

Kanggo senyawa sing akeh diisi utawa dikuatake kaca, permukaan bimetal minangka pilihan sing wicaksana: paduan sing ditambahake tungsten kita tekan62 HRCnang bolongan — mungsuh 58 HRC umum — kanggo umur layanan luwih dawa. Barel paralel ditahan kanthi toleransi ± 0,01 mm. Yen sampeyan nimbang opsi lumahing, ndeleng guide kita kanggobarel meneng bimetallic, sing ditrapake kanggo sistem paralel.

Carane milih tong minyak meneng kembar podo tengen

Papat pitakonan nggawa sampeyan menyang spesifikasi sing bener:

Co- utawa counter-rotating?Compounding lan pelletizing → co-rotating; PVC lan ngirimake alus → counter-rotating.
Apa sampeyan ngolah?Resep nyetel profil meneng - nyawiji pamblokiran kanggo sawur, vents kanggo volatiles.
Carane abrasive iku?Pengisi dhuwur utawa serat kaca → permukaan bimetal / tungsten-carbide.
mesin apa?Kirim merek / model extruder utawa gambar supaya segmen lan poros cocog.

Sekrup lan tong minyak paralel kanthi efektif kanggo mesin lan resep, mula gambar utawa conto ditambah karo materi lan output sampeyan ngidini kita ngutip sing pas.tunggal, podo karo utawa conical meneng tong minyak - utawa lengkapmesin extruder- ing 12 jam.

Pitakonan sing kerep ditakoni

Apa laras sekrup kembar paralel?

Iki minangka tong minyak kembar sing nyekeli rong sekrup intermeshing kanthi diameter konstan sing mlaku bebarengan. Boten kados tong minyak conical, ngawut-awut tetep ukuran padha mburi kanggo mburi lan sistem biasane segmented, supaya profil meneng bisa reconfigured kanggo formulasi beda.

Apa bedane co-rotating lan counter-rotating?

Sekrup co-rotating nguripake cara sing padha lan menehi dhuwur-nyukur nyawiji ing kacepetan dhuwur - becik kanggo compounding lan masterbatch. Sekrup counter-rotating nguripake oppositely karo gentler, pump-kaya ngaturaken - luwih apik kanggo PVC lan panas-sensitif, dhuwur-pengisi karya.

Apa bagean (bangunan-blok) laras sekrup kembar paralel?

Iku desain modular ngendi tong minyak iku bolt-bebarengan bagean lan meneng punika keyed unsur ing batang. Sampeyan bisa posisi feed, nyawiji, ventilasi lan metering bagean minangka perlu resep, lan ngganti mung babagan worn tinimbang kabeh meneng.

Tong sekrup kembar podo karo utawa kerucut - apa sing dibutuhake?

Pilih conical kanggo pipa PVC langsung, profil, Papan lan sheet extrusion. Pilih paralel kanggo granulasi, compounding, masterbatch lan pengisi dhuwur banget utawa dispersi serat kaca, ing ngendi pencampuran sing bisa dikonfigurasi paling penting.

Apa laras meneng kembar podo digunakake kanggo?

Utamane granulasi lan pelletizing, compounding lan masterbatch, PS foaming, panel komposit aluminium-plastik, karet lan plastik, lan garis PVC tata letak podo. Profil meneng tunable ngidini siji mesin nangani akeh resep.

Apa tong minyak paralel kudu nitrided utawa bimetallic?

Senyawa resik bisa mbukak nitrided. Resep abrasive - ngisi mineral dhuwur, serat kaca, karbonat dhuwur - kudu bimetallic; alloy tungsten-ditambahake sik njongko 62 HRC nolak sing abrasion adoh luwih saka cilik nitrided lancip.

Apa extruder meneng kembar podo?

Iki minangka mesin sing nduwe sekrup kembar lan tong minyak paralel, biasane muter bebarengan kanggo compounding lan pelletizing. Barel lan meneng minangka jantung nyandhang mesin lan cocog karo extruder lan resep.

Kepiye carane supaya laras meneng kembar podo tengen?

Marang kita co- utawa counter-puteran, materi lan output, carane abrasive resep, lan account extruder Panjenengan / model utawa gambar. Kanthi kasebut, kita nemtokake segmen, profil sekrup lan perawatan permukaan lan kutipan sajrone 12 jam.

Produk sing gegandhengan saka pabrik kita

Aluminum-Plastic Plate Parallel Twin Screw

Aluminium-Plastik Plate Paralel Twin Screw

Karet lan Plastik Paralel Twin Screw

PS Foaming Paralel Twin-Screw

Pipa PVC Parallel Screw Barrel

Paralel Twin Meneng Pelletizing Line

Twin Screw Extruder

Entuk tong minyak sekrup kembar sing cocog karo resep sampeyan

Marang kita co- utawa counter-puteran, materi lan output, lan model extruder - engineers kita bakal nemtokake bagean, profil meneng lan perawatan lumahing. Kanggo senyawa abrasif, tongsten bimetallic ditambahake tungsten tekan 62 HRC nang bolongan kanggo umur layanan dawa.

Entuk kutipan sajrone 12 jam →

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