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.

I-Parallel Twin Screw Barrel: Ukujikeleza ngokudibeneyo vs ukuJikelezisa, Iindidi kunye nezicelo

2026-08-13 0 Ndishiyele umyalezo

NgeIqela lobuchwephesha leNanhaiya— Screw & Barel Engineering, Zhoushan · Iphononongelwe ukuchaneka kwefektri · ~9 min funda

Impendulo ekhawulezayo

I-parallel twin screw barrel inezikrufu ezibini ezihlanganayo ezinodayamitha engaguqukiyo ezihamba icala ngecala kumbhobho ongamawele adibanayo. Ngokungafaniyo ne-conical barrel, izikrufu zihlala zilingana ekupheleni ukuya ekupheleni, kwaye umgqomo uvame ukwakhiwa ukusuka kumacandelo. I-Co-rotating parallel screws isuti yokudibanisa, igranulation kunye ne-masterbatch; i-counter-rotating parallel screws suit PVC kunye nomsebenzi wokuzalisa okuphezulu.

Ii-i-parallel twin screw barrellihashe lomsebenzi wokudibanisa kunye ne-pelletizing - naphi na apho ufuna ukuxuba okunzulu, ulawulo oluchanekileyo lobushushu kunye nokuguquguquka ukuphinda uqwalasele isikrufu sokwenziwa ngokutsha. Apho i-conical barrel yakhelwe i-PVC extrusion ngqo, i-parallel screw barrel yakhelwe ukuguquguquka. Esi sikhokelo sichaza indlela esebenza ngayo, umahluko obalulekileyo phakathi koyilo olujikelezayo kunye nolwe-counter-roting, icandelo (isakhiwo-ibhloko) isakhiwo esenza ukuba sibe bhetyebhetye, kunye nendlela yokukhetha okulungileyo kwizinto zakho.

Parallel twin screw barrel (counter-rotating) manufactured by Nanhaiya — I-parallel twin screw kunye ne-barrel - izikhonkwane ezinobubanzi obungaguqukiyo kumbhobho ohambelana ne-twin-bore.

Yintoni i-parallel twin screw barrel?

I-parallel screw barrel ibamba izikrufu ezibini ezinobukhulu obufanayo ukusuka kwifidi ukuya ekukhupheni, zibaleka kumzobo-asibhozo amawele. Ngenxa yokuba ububanzi buhlala buhlala, ukuziphatha kokucubungula kusetwa sisikrufuuqwalaselokunokuba nge taper - utshintsha ukusebenza ngokutshintsha izinto ezisijiva, hayi imilo yomphanda. Yiyo loo nto i-parallel twin screw kunye ne-barrel iinkqubo zilawula ukudityaniswa: umatshini omnye unokuqhuba iiresiphi ezahlukeneyo ngokuphinda wakha isikrufu.

Izinto ezimbini zichaza i-parallel twin screw barrel: indlela izikrufu ezijika ngayo (i-co-rotation okanye i-counter-rotation), kunye nendlela umphanda kunye nesikrufu esakhiwe ngayo (ngokuqhelekileyo ukusuka kumacandelo). Zombini zigutyungelwe ngezantsi. Ngoomatshini abasisiseko, bona umchazi wethuindlela isikrufu esingamawele esisebenza ngayo.

Ukujikeleza ngokubambisana vs ukujikeleza

Lo ngowona mahluko ubalulekileyo kwintsapho efanayo. Zombini ziyi-intermeshing twin-screw designs, kodwa zihambisa kwaye zixube ngokwahlukileyo kakhulu.

Umba	Ukujikeleza ngokuhambelanayo	I-counter-rotating ehambelanayo
Ukujikeleziswa kweScrew	Zombini izikrufu zijika ngendlela efanayo	Izikrweqe zijikela kumacala achaseneyo
Ukuxuba	Ukucheba okuphezulu, ukusasaza okugqwesileyo kunye nokuxuba okusasazekayo	Ubumnene, njenge-calender, ukuhambisa okulungileyo
Isantya esiqhelekileyo	Isantya esiphezulu se-screw, imveliso ephezulu	Isantya esisezantsi, ukuqina koxinzelelo oluzinzileyo
Eyona nto ingcono	Ukudibanisa, i-masterbatch, igranulation, izaliswe/i-glass-fiber	Umbhobho wePVC / iprofayili, i-heat-sensitive, i-PVC ephezulu yokuzalisa
Zive	Ukulungiswa kwakhona "umatshini wokuxuba"	Okufana nempompo, kuthambile "umatshini wokukhupha"

Ngamafutshane: i-screw ejikelezayo ejikelezayo sisixhobo sokuxuba kunye nokusabalalisa; i-counter-rotating twin screw sisixhobo sokuhambisa i-PVC ethambileyo, ezinzileyo. Izityalo ezininzi ziphethe zombini. Ukuba umsebenzi wakho ukuguqula izithako zibe yipellet, ufuna ukujikeleza ngokubambisana; ukuba ijika i-PVC eyomileyo-yokudibanisa ibe ngumbhobho okanye iprofayili, i-counter-rotation (okanye i-conical barrel) iyona nto ifanelekileyo.

Segmented parallel twin screw elements on a shaft

Icandelo (isakhiwo-ibhloko) uyilo lombhobho

Uninzi lweenkqubo ezinxuseneyo ziyimodyuli: umphanda wenziwe ngamacandelo adibeneyo ebholiti kunye nesikrufu sezinto ezizitshixo ezithungelwe kwi-shaft. Le "ibhloko isakhiwo-ibhloko" indlela yintoni enika parallel twin screw umgqomo yayo bhetyebhetye - ungabeka icandelo feed, amacandelo eziliqela ukuxuba, i-vent kunye necandelo lokulinganisa kanye apho iresiphi idinga kubo, kwaye swap ezigugileyo okanye izinto ezingafanelekanga ngabanye endaweni yokutshintsha isikrufu sonke.

Iinzuzo ezibonakalayo:

Inokuphinda iqwalaselwe— Yakha kwakhona iprofayili yesijivu ukuze uyilwe ngokutsha ngaphandle komatshini omtsha.
Iindawo zokunxiba ekujoliswe kuzo- buyisela kuphela icandelo eligugileyo, hayi isikrufu sonke kunye nomphanda.
Ukukhupha umoya apho ufuna khona- beka amacandelo e-vent ukwenzela ukufuma kunye nokususwa okuguquguqukayo.
Xuba ubunzulu kwimfuno— yongeza okanye ususe iibhloko zokuxova ukusheya.

I-Parallel vs i-i-conical twin screw barrel

Abathengi bahlala belinganisa ungqamaniso ngokuchasene ne-ai-i-conical twin screw barrel. Umgaqo omfutshane: i-conical ye-PVC extrusion ngqo, ihambelana nokudibanisa kunye nokufuna ukuxuba.

Umba	I-i-parallel twin screw barrel	I-Conical twin screw barrel
Screw shape	Idayamitha rhoqo, yahlulwe	Tapered, ifidi ebanzi ukuya emxinwa kufa
Amandla	Ukuxuba, ukusabalalisa, ukuguquguquka	Ukutya okuphezulu kunye noxinzelelo ngobude obufutshane
Eyona nto ingcono	Igranulation, masterbatch, compounding, WPC pellets	Umbhobho wePVC, iprofayili, ibhodi, iphepha
Ukuphatha isigcwalisi	Igqwesileyo kwifiber ephezulu kakhulu / iglasi-fiber	Kulungile; cula ngonyango olungaphezulu
Ukuba bhetyebhetye	Iprofayile ye-screw enokuphinda iqwalaselwe	Ijiyometri elungisiweyo ngokobungakanani

Usetyenziso

Ngenxa yokuba iprofayili yesijivu inokulungelelaniswa nomsebenzi, i-parallel twin screw barrel igubungela uluhlu olubanzi lomsebenzi. Ulungelelwaniso oluqhelekileyo eNanhaiya lubandakanya:

I-granulation kunye ne-pelletizing- umsebenzi ohambelanayo weklasikhi; bona wethuumgca we-pelletizing we-twin ehambelanayo.
Ukudibanisa & masterbatch- ukusabalalisa i-pigments, izongezo kunye nezihluzi kwi-resin ye-carrier.
PS ugwebu- bona iPS amagwebu parallel isikhonkwane iwele.
Iphaneli edibeneyo ye-aluminium-plastiki- bona iipleyiti aluminiyam-yeplastiki parallel twin screw.
Irabha kunye neplastiki- bona iirabha kunye neplastiki parallel twin screw.
umbhobho wePVC (unxuseneyo)— kwilayini esebenza ngokuhambelanayo kunendlela eyiyo eyiconical:PVC umbhobho parallel screw umphanda.

Parallel twin screw pelletizing line for compounding and granulation — A parallel twin screw pelletizing line — elona khaya lixhaphakileyo kumbhobho ojikelezayo ojikelezayo.

PS foaming parallel twin screw and barrel — Isikrufu samawele anxuseneyo kunye nomphanda owakhelwe ugwebu lwePS.

Izinto eziphathekayo kunye nonyango lwangaphandle

Ukudibanisa ngumsebenzi ogqabhukileyo - ifayibha yeglasi, izihluzi zeminerali kunye nokulayishwa kwekhabhoni ephezulu zinxiba izikrufu kunye nemigqomo ngokukhawuleza - ngoko ke imathiriyeli kunye nonyango lomphezulu lubaluleke kakhulu kwinkqubo ehambelanayo njengakwiconical. I-Nanhaiya yakha izikrufu ezinxuseneyo kunye nemigqomo ukusuka kwi-38CrMoAlA nitrided steel, W6Mo5Cr4V2 okanye i-HIP powder steel, enendawo ene-nitrided, bimetallic okanye tungsten-carbide ukuze ihambelane nokugruzuka kweresiphi yakho.

Ukuzaliswa kakhulu okanye i-glass-reinforced compounds, i-bimetallic surface lukhetho olunengqiqo: i-alloy yethu eyongeziweyo ye-tungsten ifikelela.62 HRCngaphakathi kumbhobho - ngokuchasene ne-58 HRC eqhelekileyo - ubomi obude benkonzo. Imiphanda enxuseneyo ibanjwe ukuba ikwazi ukunyamezela ±0.01 mm. Ukuba ulinganisa iinketho zomhlaba, jonga isikhokelo sethu kubimetallic screw imigqomo, esebenza ngokulinganayo kwiinkqubo ezihambelanayo.

Indlela yokukhetha i-pallel twin screw barrel echanekileyo

Imibuzo emine ikwenza ube neenkcukacha ezifanelekileyo:

Co- okanye counter-rotating?Ukudibanisa kunye nokudibanisa iipelletizing → ukujikeleza ngokubambisana; I-PVC kunye nokuhambisa ngobunono → ukujikeleza okuchaseneyo.
Ulungisa ntoni?I-recipe ibeka iphrofayili ye-screw - iibhloko zokuxuba ukusabalalisa, i-vents for volatiles.
Ibuhlungu kangakanani?Isihluzi esiphezulu okanye ifayibha yeglasi → umphezulu webimetallic / tungsten-carbide.
Ngowuphi umatshini?Thumela i-brand yakho ye-extruder / imodeli okanye umzobo ukuze amacandelo kunye ne-shaft ihambelane ngokuchanekileyo.

Izikrufu ezinxuseneyo kunye nemigqomo isiko ngokufanelekileyo kumatshini kunye neresiphi, ngoko ke umzobo okanye isampulu kunye nemathiriyeli yakho kunye nemveliso isenza ukuba sicaphule okuchanekileyo.omnye, i-parallel okanye i-conical screw barrel - okanye epheleleyoumatshini we-extruder- kwiiyure ezili-12.

Imibuzo ebuzwa qho

Yintoni i-parallel twin screw barrel?

Ngumphanda othwele amawele amabini obambe izikrufu ezibini eziguquguqukayo ezijikelezayo ezihamba ecaleni. Ngokungafaniyo ne-conical barrel, izikrufu zihlala zilingana ekupheleni ukuya ekupheleni kwaye inkqubo idla ngokuhlulahlula, ngoko ke iprofayili ye-screw ingaphinda iqwalaselwe kwiifom ezahlukeneyo.

Yintoni umahluko phakathi kokujikeleza kunye kunye nokujikeleza?

Izikrufu ezijikelezayo zijika ngendlela efanayo kwaye zinike ukuxuba okuphezulu kwe-shear ngesantya esiphezulu - ilungele ukudibanisa kunye ne-masterbatch. Izikrufu ezijikelezayo zijika ngokuchaseneyo ngokuthambileyo, ukumpompa-okufana nokuhambisa - ngcono kwi-PVC kunye nobushushu obungagungqiyo, umsebenzi wokuzalisa okuphezulu.

Yintoni icandelo (ibhloko yesakhiwo) i-parallel twin screw barrel?

Luyilo lwemodyuli apho umgqomo udityaniswe ngamacandelo kunye ne-screw zizinto eziphambili kwi-shaft. Ungabeka indawo yokutya, ukuxuba, indawo yokungena kunye nemitha yokulinganisa njengoko iresiphi ifuna, kwaye ubuyisele kuphela icandelo eligugileyo endaweni yesikrufu sonke.

I-parallel okanye i-conical twin screw barrel - yintoni endiyifunayo?

Khetha i-conical yombhobho wePVC othe ngqo, iprofayili, ibhodi kunye ne-sheet extrusion. Khetha ungqamaniso lwegranulation, ukudibanisa, i-masterbatch kunye nokugcwala okuphezulu kakhulu okanye ukusasazwa kwefayibha yeglasi, apho ukuxubana okuphinda kuqwalaselwe kubaluleke kakhulu.

Isetyenziselwa ntoni i-parallel twin screw barrel?

Ikakhulu igranulation kunye ne-pelletizing, i-compounding kunye ne-masterbatch, i-PS foaming, ipaneli ye-aluminium-plastiki edibeneyo, irabha kunye neplastiki, kunye nemigca ye-PVC ehambelanayo. Iprofayile yesikrufu esinokutyibilika ivumela umatshini omnye uphathe iiresiphi ezininzi.

Ngaba i-parallel barrel kufuneka ibe yi-nitrided okanye i-bimetallic?

Iikhompawundi ezicocekileyo zinokuqhuba i-nitrided. Iiresiphi ze-Abrasive - i-mineral filler ephezulu, i-glass fiber, i-carbonate ephezulu - kufuneka ibe yi-bimetallic; i-alloy eyongeziweyo ye-tungsten efikelela kwi-62 HRC iyaxhathisa ukuba i-brasion ide kakhulu kune-nitrided case ebhityileyo.

Yintoni i-parallel twin screw extruder?

Ngumatshini ogcina isikrufu esingamawele kunye nomgqomo, oqhele ukujikeleza ngokudibanisa kunye nokudibanisa. Umgqomo kunye ne-screw yintliziyo yokugqoka yomatshini kwaye ihambelana ne-extruder kunye neresiphi.

Ndiwuodola njani umbhobho wesikrufu we-parallel ekunene?

Sixelele ngokubambisana okanye ukujikeleza, imathiriyeli yakho kunye nemveliso, ukuba iresiphi iyingozi kangakanani, kunye ne-extruder brand / imodeli yakho okanye umzobo. Ngaloo nto, sichaza amacandelo, iphrofayili ye-screw kunye nonyango lomhlaba kunye nokucaphula kwiiyure ze-12.

Iimveliso ezinxulumeneyo ezivela kumzi-mveliso wethu

Aluminum-Plastic Plate Parallel Twin Screw

I-Aluminiyam-Plastiki yePlastiki eParallel Twin Screw

Irabha kunye nePlastiki Parallel Twin Screw

PS Ugwebu Parallel Twin-Screw

PVC Umbhobho Parallel Screw umphanda

I-I-Parallel Twin Screw Pelletizing Line

I-I-Twin Screw Extruder

Fumana i-parallel twin screw barrel ehambelana neresiphi yakho

Sixelele ngokubambisana okanye ukujikeleza, izinto zakho kunye nemveliso, kunye nemodeli yakho ye-extruder - iinjineli zethu ziya kuchaza amacandelo, iprofayili ye-screw kunye nonyango lomphezulu. Kwiikhompawundi ezirhabaxa, imigqomo yethu ye-tungsten-eyongeziweyo ye-bimetallic ifikelela kwi-62 HRC ngaphakathi kwibhore ubomi benkonzo ende.

Fumana ikhowuti kwiiyure ezili-12 →

Nanhaiya (Zhoushan) oomatshini bePlastiki · 500+ abathengi behlabathi ·ehambelanayo, i-i-conical & omnyeimigqomo yokujija &oomatshini be-extruder