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.

Paralel Kembar Screw Laras: Co-puteran vs Counter-puteran, Jenis & Aplikasi

2026-08-13 0 Ninggalkeun kuring pesen

KuTim Téknis Nanhaiya- Screw & Téknik Laras, Zhoushan · Reviewed pikeun akurasi pabrik · ~ 9 mnt dibaca

Jawab gancang

A laras screw kembar paralel boga dua screws intermeshing diaméterna konstan ngajalankeun samping ku samping dina laras kembar-bore cocog. Beda sareng tong kerucut, sekrup tetep ukuran anu sami dugi ka tungtung, sareng tong biasana diwangun tina ruas. Co-puteran screws paralel jas compounding, granulation na masterbatch; screws paralel counter-puteran cocog PVC jeung karya tinggi-filler.

Thelaras screw kembar paralelnyaeta workhorse of compounding na pelletizing - mana nu peryogi pergaulan intensif, kontrol hawa tepat sarta kalenturan ka reconfigure nu screw pikeun rumusan anyar. Dimana tong kerucut diwangun pikeun Tonjolan PVC langsung, laras screw paralel diwangun pikeun versatility. Pituduh ieu ngécéskeun kumaha gawéna, bédana krusial antara desain co-puteran sareng counter-rotating, struktur bagéan (wangunan-blok) anu ngajantenkeun éta fleksibel, sareng kumaha milih anu pas pikeun bahan anjeun.

Parallel twin screw barrel (counter-rotating) manufactured by Nanhaiya — A screw kembar paralel jeung tong - screws konstan-diaméterna dina laras kembar-bore cocog.

Naon laras screw kembar paralel?

A laras screw paralel nahan dua screws diaméterna sarua ti feed pikeun ngurangan, ngajalankeun dina angka-dalapan kembar bore. Kusabab diaméterna konstan, paripolah ngolah diatur ku screw nukonfigurasitinimbang ku taper - Anjeun ngarobah kinerja ku cara ngarobah elemen screw, teu bentuk tong. Éta pisan sababna naha paralel kembar screw sarta sistem tong ngadominasi compounding: mesin sarua bisa ngajalankeun resep wildly béda ku ngawangun deui screw nu.

Dua hal nangtukeun laras screw kembar paralel: arah screws giliran (co-puteran atawa counter-puteran), sarta kumaha laras jeung screw diwangun nepi (biasana tina bagéan). Duanana katutupan di handap. Pikeun mékanika dasar, tingali panjelasan kamikumaha a screw kembar paralel jalan.

Co-rotating vs counter-rotating

Ieu bedana pangpentingna dina kulawarga paralel. Duanana mangrupakeun intermeshing desain kembar-screw, tapi aranjeunna nepikeun jeung nyampur pisan béda.

Faktor	Co-puteran paralel	Counter-puteran paralel
rotasi screw	Duanana screws ngahurungkeun cara sarua	Screws ngahurungkeun dina arah sabalikna
Pergaulan	High-geser, alus teuing distributive & dispersive pergaulan	Gentler, calender-kawas, conveying positif
Laju has	speed screw luhur, kaluaran tinggi	Laju handap, ngawangun tekanan ajeg
Pangalusna pikeun	Compounding, masterbatch, granulation, kaeusi/serat kaca	Pipa PVC / profil, sénsitip panas, PVC pangisi luhur
Rumasa	Bisa dikonfigurasi deui "mesin campur"	Sapertos pompa, "mesin ékstrusi" hipu

Pondokna: screw kembar ko-puteran nyaéta alat pikeun nyampur jeung dispersi; screw kembar counter-puteran teh alat pikeun hipu, PVC conveying ajeg. Seueur pepelakan gaduh duanana. Lamun proyek Anjeun ngarobah bahan kana pellets, Anjeun hoyong co-puteran; lamun ngarobah PVC garing-campuran kana pipa atawa profil, counter-puteran (atawa tong kerucut) leuwih hade.

Segmented parallel twin screw elements on a shaft

Bagéan (wangunan-blok) desain laras

Paling sistem paralel téh modular: tong dijieunna tina bagian baud-bareng jeung screw elemen keyed threaded onto a aci. Pendekatan "wangunan-blok" ieu anu masihan laras screw kembar paralel kalenturan na - anjeun tiasa nempatkeun bagian feed, sababaraha bagian campuran, liang hawa sareng bagian pangukuran persis dimana resepna peryogi aranjeunna, sareng ngagentos elemen anu luntur atanapi henteu cocog sacara individual tinimbang ngagentoskeun sadayana screw.

Kauntungan praktis:

Bisa dikonfigurasi deui- ngawangun deui profil screw pikeun formulasi anyar tanpa mesin anyar.
bagian maké sasaran- ngaganti ukur bagean dipaké, teu sakabeh screw na tong.
Venting dimana anjeun peryogi- bagian curhat posisi pikeun Uap sarta ngaleupaskeun volatile.
Campur inténsitas on demand- tambahkeun atanapi cabut blok kneading pikeun nyaluyukeun geser.

Paralel vs kerucut laras screw kembar

Pembeli sering beuratna paralel ngalawan akerucut kembar screw laras. Aturan pondok: kerucut pikeun PVC Tonjolan langsung, paralel pikeun compounding sarta nungtut campur kode.

Faktor	Paralel kembar screw laras	Kerucut kembar screw laras
Bentuk screw	Diaméter konstan, segmented	Tapered, feed lebar mun heureut paeh
Kakuatan	Pergaulan, dispersi, kalenturan	feed tinggi & komprési dina panjang pondok
Pangalusna pikeun	Granulasi, masterbatch, compounding, pellets WPC	pipa PVC, profil, papan, lambar
Penanganan filler	Alus pisan dina pangisi / serat gelas anu luhur pisan	Alus; tune kalawan perlakuan permukaan
Kalenturan	profil screw Bisa dikonfigurasi deui	Géométri tetep per ukuran

Aplikasi

Kusabab profil screw bisa disetel ka pakasaban, a sajajar kembar laras screw nyertakeun rupa-rupa karya. Konfigurasi umum di Nanhaiya ngawengku:

Granulasi & pelletizing- pakasaban paralel Palasik; tingali uranggaris pelletizing screw kembar paralel.
Compounding & masterbatch- dispersing pigmén, aditif jeung fillers kana résin carrier.
PS berbusa- tingaliPS berbusa paralel kembar screw.
Panel komposit aluminium-plastik- tingaliplat aluminium-plastik paralel kembar screw.
Karét & plastik- tingalikarét sarta palastik paralel kembar screw.
Pipa PVC (paralel)- pikeun garis anu ngajalankeun paralel tinimbang perenah kerucut:pipa PVC paralel screw laras.

Parallel twin screw pelletizing line for compounding and granulation — Garis pelletizing screw kembar paralel - bumi anu paling umum pikeun tong paralel puteran.

PS foaming parallel twin screw and barrel — A screw kembar paralel jeung tong diwangun pikeun PS foaming.

Bahan jeung perlakuan permukaan

Compounding nyaéta karya abrasive - serat kaca, fillers mineral jeung loadings karbonat tinggi maké screws na tong gancang - jadi bahan jeung perlakuan permukaan masalah saloba dina sistem paralel sakumaha dina kerucut. Nanhaiya ngawangun sekrup paralel sareng tong tina baja nitrided 38CrMoAlA, W6Mo5Cr4V2 atanapi baja bubuk HIP, kalayan permukaan nitrided, bimetallic atanapi tungsten-carbide pikeun cocog sareng abrasion resep anjeun.

Pikeun sanyawa anu dieusi beurat atanapi diperkuat kaca, permukaan bimetal mangrupikeun pilihan anu wijaksana: alloy tungsten-tambah kami ngahontal62 HRCdi jero liang - versus 58 HRC umum - pikeun umur jasa anu langkung panjang. Laras paralel dilaksanakeun dina kasabaran ± 0,01 mm. Upami anjeun timbangan pilihan permukaan, tingali pituduh kamitong screw bimetallic, nu manglaku sarua pikeun sistem paralel.

Kumaha carana milih laras screw kembar paralel katuhu

Opat patarosan masihan anjeun spésifikasi anu leres:

Co- atanapi counter-puteran?Compounding jeung pelletizing → co-puteran; PVC jeung conveying hipu → counter-puteran.
Naon anu anjeun ngolah?Resep susunan profil screw - Pergaulan blok pikeun dispersi, vents pikeun volatiles.
Kumaha abrasive éta?Pangisi luhur atanapi serat kaca → permukaan bimetallic / tungsten-carbide.
mesin naon?Kirimkeun merek / modél extruder anjeun atanapi gambar supados bagéan sareng aci cocog persis.

Skrup sareng tong paralel sacara efektif khusus pikeun mesin sareng resep, janten gambar atanapi conto ditambah bahan sareng kaluaran anjeun ngamungkinkeun urang nyarioskeun anu pas-pas.tunggal, Paralel atawa kerucut screw tong - atanapi lengkepmesin extruder- dina 12 jam.

Patarosan anu sering ditaroskeun

Naon laras screw kembar paralel?

Ieu laras kembar-bore nyekel dua screws intermeshing diaméterna konstan anu ngajalankeun samping ku samping. Beda sareng tong kerucut, screws tetep ukuran anu sami dugi ka tungtung sareng sistemna biasana dibagi-bagi, ku kituna profil skru tiasa dikonfigurasi ulang pikeun formulasi anu béda.

Naon bédana antara co-rotating sareng counter-rotating?

screws co-puteran ngahurungkeun cara nu sami tur masihan tinggi-geser campur dina speed tinggi - idéal pikeun compounding na masterbatch. Counter-puteran screws ngahurungkeun oppositely kalawan gentler, conveying kawas pompa - hadé pikeun PVC jeung panas-sénsitip, karya tinggi-filler.

Naon bagian (gedong-blok) paralel laras screw kembar?

Éta mangrupikeun desain modular dimana laras mangrupikeun bagian-bagian baud sareng sekrup mangrupikeun elemen konci dina aci. Anjeun tiasa posisi feed, Pergaulan, curhat sarta Pangukuran bagian sakumaha perlu resep, sarta ngaganti ukur bagéan dipaké tinimbang sakabeh screw.

Paralel atanapi kerucut laras screw kembar - nu Abdi peryogi?

Pilih kerucut pikeun pipa PVC langsung, profil, papan sareng ékstrusi lambar. Pilih paralel pikeun granulasi, compounding, masterbatch sareng pangisi anu luhur pisan atanapi dispersi serat gelas, dimana campuran anu tiasa dikonfigurasi paling penting.

Naon anu dipaké pikeun laras screw kembar paralel?

Utamana granulation na pelletizing, compounding na masterbatch, PS foaming, panel komposit aluminium-plastik, karét sarta plastik, sarta paralel-layout garis PVC. Profil screw tunable ngamungkinkeun hiji mesin nanganan loba resep.

Naha tong paralel kedah nitrided atanapi bimetallic?

Sanyawa bersih bisa ngajalankeun nitrided. Resep abrasive - filler mineral tinggi, serat kaca, karbonat tinggi - kudu bimetallic; alloy tungsten-ditambahkeun ngahontal 62 HRC nolak abrasion nu leuwih panjang batan kasus nitrided ipis.

Naon téh extruder screw kembar paralel?

Ieu mangrupikeun mesin anu ngagaduhan sekrup kembar paralel sareng tong, biasana puteran babarengan pikeun panyusun sareng pelletizing. Laras sareng sekrup mangrupikeun manah ngagem mesin sareng cocog sareng extruder sareng resep.

Kumaha kuring mesen laras screw kembar paralel katuhu?

Ngabejaan urang co- atanapi counter-puteran, bahan anjeun sarta output, kumaha abrasive resep, sarta brand extruder anjeun / model atawa gambar a. Kalayan éta, kami tangtukeun bagéan, profil screw sareng perawatan permukaan sareng kutipan dina 12 jam.

produk patali ti pabrik urang

Aluminum-Plastic Plate Parallel Twin Screw

Aluminium-Plastik Plat Paralel Kembar Screw

Karét Jeung Plastik Paralel Kembar Screw

PS Foaming Paralel Kembar-screw

PVC pipe Parallel screw Laras

Paralel Kembar Screw Pelletizing Line

Kembar Screw Extruder

Kéngingkeun tong screw kembar paralel anu cocog sareng resep anjeun

Béjakeun ka kami co- atanapi counter-puteran, bahan sareng kaluaran anjeun, sareng modél extruder anjeun - insinyur kami bakal nangtukeun bagéan, profil screw sareng perawatan permukaan. Pikeun sanyawa abrasive, tong bimetallic ditambahkeun tungsten kami ngahontal 62 HRC di jero bore pikeun hirup layanan panjang.

Kéngingkeun kutipan dina 12 jam →

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