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.

Pa'u Siu Malua Fa'ata'i Fa'atasi: Fa'atasi ma Fa'asagatau, Ituaiga & Fa'aoga

2026-08-13 0 Tuu mai ia te au se savali

E ala i leNanhaiya Technical Team— Screw & Barrel Engineering, Zhoushan · Iloiloina mo le saʻo o falegaosimea · ~ 9 min faitau

Tali vave

O se paelo sikulima masaga tutusa e lua ni sikulima fealua'i e faifai pea le lautele o lo'o fa'asolosolo fa'atasi i totonu o se paelo lua fa'atasi. E le pei o se paelo conical, e tumau pea le lapo'a tutusa pito i tua, ma o le paelo e masani ona fausia mai vaega. Fa'ato'a fa'asolo fa'a sikulu fa'atusa suti fa'afefiloi, fa'ama'a ma masterbatch; fa'asaga fa'ata'amilo fa'atusa fa'asaga e fetaui ma le PVC ma le galuega fa'atumu maualuga.

O lepaelo sikuli masaga tutusao le galue malosi o le faʻafefiloi ma pelletizing - i soʻo se mea e te manaʻomia ai le faʻafefiloi malosi, pulea saʻo o le vevela ma le fetuutuunaʻi e toe faʻaleleia le sikuli mo se faʻavae fou. A fau se paelo conical mo le fa'apipi'i sa'o o le PVC, e fau se paelo sikulima tutusa mo le fa'aogaina. O lenei ta'iala o lo'o fa'amatalaina ai le fa'aogaina, o le eseesega taua i le va o mamanu fa'atasi ma fa'asagatau-tau, o le vaega (fale-poloka) fausaga e fa'afaigofie ai, ma pe fa'apefea ona filifili le mea sa'o mo au mea.

Parallel twin screw barrel (counter-rotating) manufactured by Nanhaiya — O se sikulima masaga tutusa ma le paelo - fa'amau fa'asisikulima i totonu o se paelo lua fa'atasi.

O le a le paelo sikuli masaga tutusa?

O se paelo sikulima tutusa e uu ai ni sikulima se lua e tutusa le lautele mai le fafaga i le lafoaia, o loʻo faʻasolo i se faʻailoga masaga-valu. Talu ai ona o le lautele e tumau, o le gaioiga gaioiga e setiina e le sikulifaatulagaganai lo le taper - e te suia le faatinoga e ala i le suia o elemene sikulima, ae le o foliga paelo. O le mafua'aga lena o le fa'aogaina o masini fa'apipi'i fa'atasi: e mafai e le masini lava lea ona fa'agasolo ese'ese fua e ala i le toe fauina o le sikula.

E lua mea e faauigaina ai se paelo sikuila masaga tutusa: o le itu e liliu ai sikulima (faataamilo po o le faafeagai), ma le auala e fausia ai le paelo ma le fao (e masani lava mai vaega). O loʻo ufiufi uma i lalo. Mo le faʻainisinia autu, vaʻai i la matou faʻamatalaga i lugape fa'afefea ona fa'aogaina se sikulima masaga tutusa.

Su'e fa'atasi vs fa'asagatau fa'asagatau

O le eseesega sili lea ona taua i le aiga tutusa. O mea uma e lua e fesoʻotaʻi ma mamanu masaga-screw, ae latou te faʻafeiloaʻi ma faʻafefiloi e matua ese lava.

Fa'ailoga	Fa'atasi fa'atasi	Fa'ata'amilosaga tutusa
Taamilomilo	O sikulima uma e lua e liliu tutusa	E feliuliua'i to'u i itu faafeagai
Faafefiloi	High-shear, fa'afefiloi lelei tele & fa'afefiloi	E agamalu, e pei o le kalena, fe'avea'i lelei
Saosaoa masani	Sili atu le saoasaoa sikulima, maualuga le gaosiga	Saosaoa maualalo, fau omiga tumau
Sili mo	Fa'afefiloi, masterbatch, fa'ameamea, fa'atumu/fa'ata tioata	PVC paipa / talaaga, vevela-maʻaleʻale, maualuga faʻatumu PVC
Lagona	Toe fa'atulagaina "masini fa'afefiloi"	E pei o se pamu, malu "mesini extrusion"

I se faapuupuuga: o le sikulima masaga faʻatasi o le meafaigaluega mo le faʻafefiloi ma faʻasalalau; o se fa'asaga fa'ata'amilomilo masaga sikulima o le meafaigaluega mo le malu, fa'amautu PVC felauaiga. O le tele o laau e umia uma ia mea e lua. Afai o lau galuega o le fa'aliliuina o mea'ai i pelleti, e te mana'o e sui fa'atasi; afai o lo'o fa'aliliuina le PVC fa'afefiloi mago i totonu o le paipa po'o le fa'amatalaga, e sili atu ona fetaui le fa'asagatau (po'o se paelo conical).

Segmented parallel twin screw elements on a shaft

Vaega (poloka faufale) mamanu paelo

O le tele o faiga fa'atusa e fa'apitoa: o le paelo e fai i vaega fa'apipi'i fa'atasi ma le fa'avili o elemene ki e fa'amau i luga o le au. O le auala lea o le "poloka faufale" o le mea lea e mafai ai ona fetu'una'i le pa'u sikuila masaga tutusa - e mafai ona e tu'uina se vaega fafaga, vaega fa'afefiloi, se va'a ma se vaega e fuaina i le mea tonu lava e mana'omia e le fua, ma fesuiai ta'ito'atasi elemene ua masaesae pe le talafeagai nai lo le suiina o se sikulima atoa.

Fa'amanuiaga fa'atino:

Toe fetuutuunai- toe fausia le fa'ailoga sikulima mo se faiga fou e aunoa ma se masini fou.
Vaega la'ei fa'atatau— sui na'o le vaega ua masaesae, ae le o le sikulima atoa ma le paelo.
Fa'amalo i mea e te mana'omia- fa'atulaga vaega fa'afefe mo le susū ma le fa'ateteleina.
Faʻafefiloi malosi i luga ole manaʻoga- fa'aopoopo pe aveese poloka lomi e fa'alogo ai le sele.

Parallel vs conical twin screw paelo

E masani ona fuaina e le au faatau se mea tutusa ma le apa'u sikuli masaga conical. O le tulafono puupuu: conical mo tuusao PVC extrusion, tutusa mo le tuufaatasia ma manaomia fefiloi.

Fa'ailoga	paelo sikuli masaga tutusa	Pa'u fa'aisi fa'ailoga masaga conical
Siu foliga	O le lautele faifaipea, vaeluaina	Tapered, fafaga lautele e vaapiapi pe
Malosi	Faʻafefiloi, faʻasalalau, fetuutuunai	Fafaga maualuga & fa'amalosi i pu'upu'u umi
Sili mo	Granulation, masterbatch, tuufaatasia, pellets WPC	PVC paipa, talaaga, laupapa, laupepa
Taulimaina o le faatumu	E lelei tele i le fa'atumu maualuga / fila tioata	Lelei; fa'alogo i togafitiga i luga
Fetuuna'i	Toe fetuutuuna'i fa'ailoga sikulima	Fa'atonu geometry i le tele

Talosaga

Ona o le fa'ailoga fa'ailoga e mafai ona fa'alogo i le galuega, o le pa'u sikulima masaga tutusa e ufiufi ai le tele o galuega. Fa'atonuga masani i Nanhaiya e aofia ai:

Granulation & pelletizing- o le galuega tutusa masani; vaai i tatoulaina pelletizing sikuli masaga tutusa.
Fa'aopoopo & masterbatch- fa'asalalau lanu, mea fa'aopoopo ma mea fa'atumu i totonu o se resini.
PS fa'afu— vaai i lePS fa'asu'a fa'aluulu masaga tutusa.
Alumini-palasitika mea fa'apipi'i— vaai i leipu alumini-palasitika sikulu masaga tutusa.
Pa'u & palasitika— vaai i lepa'u ma palasitika sikulima masaga tutusa.
paipa PVC (tutusa)- mo laina o lo'o fa'agasolo tutusa nai lo le fa'atulagaina fa'amau:paipa PVC pa'u sikula fa'atasi.

Parallel twin screw pelletizing line for compounding and granulation — O se laina pelletizing sikuli masaga tutusa - o le fale sili ona taatele mo le paʻu tutusa e taamilo.

PS foaming parallel twin screw and barrel — Ose sikulima masaga tutusa ma le paelo na fausia mo le fa'afua PS.

Meafaitino ma luga o togafitiga

O le fa'afefiloi o se galuega fa'a'a'asa - o le alava tioata, fa'atumu o minerale ma uta maualuga o le kaona e fa'alava fa'avili ma paelo - o le mea lea e taua tele ai le fa'aogaina o meafaitino ma luga ole faiga fa'apena e pei ole fa'amau. Na faia e Nanhaiya sikuli ma paelo tutusa mai 38CrMoAlA nitrided sila, W6Mo5Cr4V2 po'o HIP pauta uamea, ma nitrided, bimetallic po'o tungsten-carbide luga e fetaui ma le abrasion o lau fua.

Mo fa'aputuga fa'atumu tele po'o tioata fa'amalosia, o le bimetallic surface o le filifiliga atamai lea: oa tatou u'amea fa'aopoopo i le tungsten e o'o atu.62 HRCi totonu o le va'a - fa'asaga i le 58 HRC masani - mo le umi o le tautua. O paelo fa'atasi o lo'o taofia ile fa'apalepale ole ±0.01 mm. Afai o lo'o e fuaina filifiliga i luga ole laiga, va'ai la matou ta'iala ilepaelo sikilima bimetallic, lea e fa'aoga tutusa i faiga tutusa.

E fa'afefea ona filifili le paelo sikuli masaga tutusa tutusa

E fa fesili e avatu ai oe ile fa'amatalaga sa'o:

Fa'atasi po'o le fa'afeagai?Fa'afefiloi ma pelleti → fa'atasi; PVC ma le fe'avea'i mālū → fa'asagatau-fuli.
O a mea o lo'o e faia?O le fua e faʻatulaga ai le faʻailoga faʻailoga - faʻafefiloi poloka mo faʻasalalau, faʻamalo mo mea faʻafefe.
E fa'afefea?Fa'atumu maualuga po'o le alava tioata → bimetallic / tungsten-carbide luga.
O le a le masini?Auina atu lau fa'ailoga/fa'ata'ita'iga po'o se ata tusi ina ia fetaui lelei vaega ma le au.

O sikulima ma paelo tutusa e masani lelei i le masini ma le fua, o lea o se ata tusi poʻo se faʻataʻitaʻiga faʻatasi ai ma au mea ma mea e fai e mafai ai ona matou sii maia se mea e fetaui lelei.nofofua, paelo fa'a sikulu fa'atutusa po'o kone - po'o le atoatoamasini extruder- i totonu ole 12 itula.

Fesili e fai soo

O le a le paelo sikuli masaga tutusa?

Ose pa'u masaga lua o lo'o uuina ni fa'a sikulula felavasa'i e lua o lo'o taamilo fa'atasi. E le pei o se pa'u conical, o fa'a sikulila e tumau i le lapo'a tutusa pito i le pito ma o le faiga e masani ona vaeluaina, o lea e mafai ai ona toe faʻaleleia le faʻailoga faʻailoga mo faʻasologa eseese.

O le a le 'ese'esega i le va o le fesuia'i fa'atasi ma le fa'afeagai?

O fa'avili fe'avea'i fa'atasi e liliu i le ala lava e tasi ma tu'u ai le fefiloi maualuga-sele i le saoasaoa maualuga - lelei mo le fa'afefiloi ma le masterbatch. Fa'asaga fa'afeagai fa'ailoga fa'asaga i le fa'afefeteina, pei o le pamu - sili atu mo le PVC ma le vevela-ma'ale'ale, galuega maualuga fa'atumu.

O le a le vaega (poloka faufale) pa'u sikula masaga tutusa?

Ose mamanu fa'alelei lea e fa'apipi'i fa'atasi ai le paelo ma o le fa'ailoga o lo'o ki ai elemene i luga o se 'au. E mafai ona e fa'atulaga vaega o mea'ai, fa'afefiloi, fa'a'a'a ma fuaina e pei ona mana'omia e le fua, ma sui na'o le vaega ua masaesae nai lo le sikulima atoa.

Pa'u sikuli masaga tutusa po'o le conical - o le fea ou te mana'omia?

Filifili conical mo paipa PVC tuusao, talaaga otooto, laupapa ma pepa extrusion. Filifili mea tutusa mo le fa'afefiloi, fa'afefiloi, masterbatch ma le fa'atumu maualuga po'o le fa'alava tioata, lea e sili ona taua le fa'afefiloiga fa'aopoopo.

O le a le mea e fa'aoga i ai se paelo sikuli masaga tutusa?

E masani lava granulation ma pelletizing, tuufaatasia ma masterbatch, PS foaming, alumini-palasitika panel composite, pa'u ma palasitika, ma laina PVC laina tutusa. O le fa'ailoga sikulima fa'alogo e mafai ai e se masini e tasi ona taulimaina le tele o fua.

E tatau i se paelo tutusa ona fa'ameamea po'o le bimetallic?

E mafai ona fa'afefeteina fa'afefiloi mama. O fua fa'asa'o - fa'atumu minerale maualuga, fila tioata, carbonate maualuga - e tatau ona bimetallic; o se u'amea fa'aopoopo fa'a tungsten e o'o atu i le 62 HRC e tete'e atu i lena abrasion e sili atu le umi nai lo se mea manifinifi nitrided.

O le a le mea fa'apipi'i sikulima masaga tutusa?

O le masini lea e fa'apipi'i ai se masaga sikulima tutusa ma le paelo, e masani ona fealua'i fa'atasi mo le fa'afefiloi ma le pelletizing. O le paelo ma le sikulima o le fatu lea o le masini ma e fetaui ma le extruder ma le fua.

E fa'afefea ona ou okaina le paelo sikuila masaga tutusa tutusa?

Ta'u mai ia matou fa'atasi po'o fa'asagatau-taamilo, au meafaitino ma mea e gaosia, pe fa'afefea le fua, ma lau fa'ailoga/fa'ata'ita'iga po'o se ata tusi. Faatasi ai ma na, matou te faʻamaoti vaega, faʻailoga faʻailoga ma togafitiga luga ma faʻamatalaga i totonu ole 12 itula.

O oloa fa'atatau mai le matou falegaosimea

Aluminum-Plastic Plate Parallel Twin Screw

Aluminum-Palasitika Papa Fa'ata'ita'i Masaga Siu

Pa'u ma palasitika masiu masaga tutusa

PS Foaming Parallel Twin-Screw

PVC Pipe Fa'ata'i Siu Pa'u

Laina Pelletizing Siu masaga Faalua

Twin Screw Extruder

Aumai se paelo sikulima masaga tutusa e fetaui ma lau fua

Ta'u mai ia matou fa'atasi po'o le fa'asagatau, au meafaitino ma mea e gaosia, ma lau fa'ata'ita'iga extruder - o le a fa'ama'oti mai e matou inisinia vaega, fa'ailoga fa'ailoga ma togafitiga o luga. Mo fa'aputuga abrasive, a matou paelo bimetallic fa'aopoopo i le tungsten e o'o atu i le 62 HRC i totonu o le vai mo le ola umi.

Maua se upusii i totonu ole 12 itula →

Nanhaiya (Zhoushan) masini palasitika · 500+ tagata fa'atau i le lalolagi atoa ·tutusa, conical & nofofuapaelo fa'ailoga &masini extruder