What is a conical twin screw barrel?

It is a tapered twin-bore extrusion component in which two conical screws rotate inside a matching conical barrel. The taper compresses and plasticizes material over a short length, making the conical screw barrel ideal for PVC pipe, profile, sheet and WPC extrusion.

What materials is it best used for?

Rigid PVC (pipe, profile, board and sheet), wood-plastic composite, PE-based profiles and resin tile, plus PVC pelletizing. It handles low-bulk-density dry-blend powders especially well thanks to its large feed-end intake.

How is it different from a parallel twin screw barrel?

A conical barrel tapers and builds high compression with gentle shear, suiting direct PVC/WPC extrusion. A parallel twin screw barrel keeps a constant diameter and higher shear, which suits compounding, masterbatch and very high-filler formulations.

What is the typical clearance between screw and barrel?

Clearance is the small gap between the flight tip and the bore wall. It is set tight and accurate on a new part; as it opens up from wear, output and pressure drop. Measuring it periodically is the clearest way to track barrel wear.

How do I install a conical twin screw barrel?

Power down and lock out, clean the mating faces, mount and align so the screws turn freely, wire each heater zone and thermocouple correctly, then bring the barrel up to temperature slowly and soak it before starting the screws.

What causes wear in conical twin screw barrels?

Mainly abrasive fillers such as calcium carbonate, wood fiber and glass, made worse by corrosion from PVC processing, poor maintenance and under-specified hardness. A deeper bimetallic or tungsten-carbide layer resists all three far better.

How often should the barrel be inspected or replaced?

Do visual and purge checks monthly and measure clearance quarterly. Replacement timing depends on filler load and run hours — track the wear trend rather than waiting for a failure, and rebuild or replace once clearance moves past spec.

How do I choose the right size for my extrusion line?

Match the diameter ratio and length to your extruder model and target output, then pick a surface treatment based on how abrasive your formulation is. Send a drawing or a sample with key dimensions so the barrel is an exact fit, not an approximation.

Conical Twin Screw Barrel: Ntuzi zuru oke maka nkọwapụta, ngwa na nhọrọ

2026-08-05 0 Hapụ m ozi

Site naOtu nka nka Nanhaiya- Screw & Barrel Engineering, Zhoushan · Nyochaa maka izi ezi ụlọ ọrụ · ~ 10 min gụọ

Azịza ngwa ngwa

Igwe ejima conical conical screw barrel bụ ihe tepeed, nke nwere ejima nwere extrusion nke skru abụọ na-atụgharị n'ime gbọmgbọm conical dabara adaba. The tapered geometry na-anapụta ike nri na elu mkpakọ na a obere ogologo, nke mere naconical ejima ịghasa na gbọmgbọmbụ nhọrọ ọkọlọtọ maka ọkpọkọ PVC, profaịlụ, mpempe akwụkwọ na extrusion WPC.

Ọ bụrụ na ị na-agba ọsọ PVC ma ọ bụ osisi-plastic akara, naconical ejima ịghasa gbọmgbọmbụ otu n'ime akụkụ ndị kasị kpọmkwem na-ekpebi gị mmepụta, agbaze àgwà na-agba ọsọ na-eri. Họrọ nha na-ezighi ezi, ihe ma ọ bụ mkpochapụ ma kwụọ ụgwọ maka ya na uwe, mkpofu na oge nkwụsị. Ntuziaka a na-ekpuchi ka otu conical skru barrel si arụ ọrụ, nkọwa ndị dị mkpa mgbe ịzụrụ, ka o si dị iche namyirịta ejima ịghasa gbọmgbọm, na otu esi ahọrọ, wụnye na idobe otu - nke edere site n'echiche nke ụlọ ọrụ na-emepụta akụkụ ndị a kwa ụbọchị.

Conical twin screw barrel manufactured by Nanhaiya — A conical ejima ịghasa na gbọmgbọm set - na tapered bores na-enye mkpụmkpụ ogologo mkpakọ ezigbo maka okpomọkụ-enwe mmetụta PVC.

Kedu otu igwe ejima conical screw barrel si arụ ọrụ

Na aconical ejima ịghasa extruder, kposara abụọ na-anọdụ ala n'akụkụ n'akụkụ n'akụkụ dị nta, obosara na njedebe ndepụta na warara na njedebe anwụ. gbọmgbọm ahụ na-ada ụda ka ọ dabara. Ka akụrụngwa na-esi na mpaghara nri dị dayameta na-esi na mpaghara nri buru ibu gaa n'obere nha nha dayameta, ụda olu na-ebelata na-akpakọ ma na-eme ya plastik ka ụgbọ elu ndị na-emekọrịta ihe na-ebufe ma na-agwakọta. N'ihi na abụọ kposara counter-atụgharị na n'ụzọ zuru ezu intermesh, na conical ejima ịghasa na gbọmgbọm na-eme ihe fọrọ nke nta ka a mma-nkwagharị mgbapụta - guzosie ike mmepụta na ala, nwayọọ shiee, nke na-echebe okpomọkụ-enwe mmetụta polymers dị ka PVC.

Usoro a na-agbaji n'ụzọ atọ:

Nri & ibufe- nnukwu nri-ngwugwu njedebe na-enye nnukwu ihe oriri, ya mere ngwakọta ntụ ntụ na ihe dị ala (dị ka PVC akọrọ-agwakọta) na-adọta na ntụkwasị obi na-enweghị mbikọ.
Mkpakọ & plasticizing- taper na-ebelata olu ọwa n'ogologo, na-agbakọ ihe, na-ebupụ ikuku ma na-agbaze ya site na ikpokọta ọkụ na ọrụ nhazi.
Mita & mwepụ- na warara metering mpaghara na-ewuli a mụ nrụgide na pushes a edo, homogeneous gbazee site na-anwụ na a na-achịkwa ọnụego.

gbọmgbọm ahụ na-eme ihe karịrị idobe skru. Ọ na-ebu ikpo ọkụ na mpaghara jụrụ oyi nke na-ejide ọkwa ọ bụla na okpomọkụ kwesịrị ekwesị. Nanhaiya gbọmgbọm na-eji a multi-mpaghara kpo oku na jụrụ imewe - a na-eri nri, mkpakọ na homogenization zones - na nhọrọ agụụ ventilashion na-adọta mmiri na volatiles si na gbazee, nke mkpa maka jupụtara na hygroscopic ogige.

Nkọwapụta igodo iji lelee tupu ịzụrụ

Orù conical abụọ nwere ike ịdị ka otu ma na-arụ ọrụ dị iche iche. Ndị a bụ nkọwapụta ndị na-ekpebi dabara, mmepụta na iyi ndụ - ọnụọgụ ndị ị ga-akwado na nhota ọ bụla.

Spec ihe	Ihe ọ pụtara	Ihe mere o ji dị mkpa
Oke dayameta	Dayameta nri-ngwụcha/anwụ anwụ, dịka. 45/90, 50/105, 55/110, 65/132, 80/156, 92/188 mm	Na-edobe klas igwe na eriri mmepụta - ga-adabarịrị ụdị extruder gị kpọmkwem
Oke L/D	Ogologo nhazi dị irè vs dayameta	Ogologo ogologo oge dị ogologo = oge obibi karịa maka njikọ zuru oke na degassing
Ọkwa ihe	38CrMoAlA nitrided ígwè, W6Mo5Cr4V2, HIP ntụ ntụ ígwè, ma ọ bụ bimetallic	Ndị draịva ozugbo na-eyi ndụ yana nguzogide corrosion megide ogige PVC juru eju
Ọgwụgwọ elu & ike	Nitriding, chrome plating, bimetallic alloy ma ọ bụ tungsten-carbide ịgba	Nanhaiya na-efesa oyi akwa tungsten agbakwunyere ka ọ rute62 HRCn'ime gbọmgbọm vs nke 58 HRC
Alloy oyi akwa omimi	Ọkpụrụkpụ nke oyi akwa ime na-eguzogide iyi	Igwe bimetallic nke Nanhaiya bụ 2.5–3 mm — oyi akwa dị omimi pụtara windo ọrụ ga-adị ogologo.
Mwepu mkpọda / gbọmgbọm	Ọdịiche dị n'etiti ọnụ ụgbọ elu na mgbidi gbawara agbawa	Oke nnukwu = mfu nrụgide na mmepụta dị ala; oghere siri ike, nke ziri ezi na-eme ka arụmọrụ dị elu
Ntachi obi / kwụ ọtọ	Machining nkenke akụkụ nke emechara	Nanhaiya na-ejide orù ejima conical ruo ±0.0005 mm maka nkwekọ na-agbanwe agbanwe, enwere ike ikwugharị
Ike mmepụta (kg/h)	Enyere ọkwa maka nha	Nọmba onye na-azụ ihe - dakọtara ya na ọsọ ahịrị gị na ngwaahịa gị

Nkọwa ụlọ ọrụ izugbe:conical size designations dị ka 45/90 ma ọ bụ 65/132 (nri / anwụ dayameta na mm) na-ahụkarị n'ofe SJZ-ụdị conical ígwè ọrụ, otú gbọmgbọm kpọmkwem otú a nwere ike na-ejikarị na-adị extruder. Kwado mgbe niile megide eserese ma ọ bụ ihe nlele tupu ịtụ. Ị nwere ike ịhụ nha ọkọlọtọ na anyịconical ejima ịghasa gbọmgbọmibe.

Conical vs myirịta ejima ịghasa gbọmgbọm

Ajụjụ ndị na-azụ ahịa na-ajụkarị bụ ma ha chọrọ conical ma ọ bụ amyirịta ejima ịghasa gbọmgbọm. Ha abụọ bụ ejima-skru, ma intermesh - mana geometry dabara na ọrụ dị iche iche. Na nkenke: conical karịrị na kpọmkwem PVC / WPC extrusion nke ọkpọkọ, profaịlụ na osisi; myirịta bụ ike maka compounding, masterbatch na nnọọ elu-filler formulations.

Ihe kpatara ya	gbọmgbọm ejima conical	Ejima ịghasa gbọmgbọm
Omume nri	Nnukwu ndepụta mmeghe - mma oriri maka obere-njupụta ntụ ntụ	Nri ndị ọzọ otu maka ịgbakọta na nri pellet
Mkpakọ	Mkpakọ dị elu arụnyere n'ime geometry a kpụrụ akpụ	More mgbe niile mkpakọ tinyere a ofu dayameta
Okpomọkụ / shiee	Dị nwayọọ, nhazi nhazi - dị mma maka PVC na-ekpo ọkụ	Higher shiee - mma maka kpụ ọkụ n'ọnụ Ịgwakọta na dispersion
Ojiji a na-ahụkarị	PVC ọkpọkọ, profaịlụ, mpempe akwụkwọ, WPC, resin tile	Masterbatch, ngwakọta, nnukwu-CaCO₃ na ọrụ jupụtara iko
Nlekọta	Uwe na mkpochapụ chọrọ nlebanya anya na taper	Ọ na-adịkarị mfe nhazi geometry na ndochi elementrị

Iwu isi mkpịsị aka bara uru: ọ bụrụ na ngwaahịa njedebe gịbụna extrudate (a ọkpọkọ ma ọ bụ a osisi kwụ ọtọ na-anwụ anwụ), a conical ejima ịghasa gbọmgbọm na-abụkarị nri ngwá ọrụ. Ọ bụrụ na ị na-eme pellets ma ọ bụ na-achụsasị ngwugwu mgbakwunye na-achọsi ike, lelee otu gbọmgbọm ejima ịghasa - ọkachasị ụdị na-agbanwe agbanwe maka nbudata carbonate dị elu. Amaghị nke dabara ahịrị gị? Anyịotu ịghasa, conical na nsoro nso ka egosiri naibe ngwaahịa.

Ngwa nkịtị

N'ihi na ọ na-ejikọta nri siri ike, mkpakọ dị elu na mma dị nro, nkedo conical ejima na gbọmgbọm bụ ọrụ ọrụ nke siri ike-PVC na extrusion osisi-plastic. Ọ na-arụ ọrụ kacha mma maka:

PVC ọkpọkọ- mmiri na-enye mmiri, drainage na conduit pipe si na PVC akọrọ.
PVC profaịlụ- windo na profaịlụ ọnụ ụzọ, n'ọnụ banding na ewepụtụ.
PVC mbadamba & mpempe akwụkwọ- bọọdụ ụfụfụ, mpempe akwụkwọ marble na bọọdụ ụfụfụ efu (lee anyịPVC osisi conical ejima ịghasa gbọmgbọm).
WPC (osisi-plastic mejupụtara)- decking, mgbidi mgbidi na profaịlụ site na osisi-fiber jupụtara ogige.
Ngwaahịa dabere na PE na resin-tile- gụnyere tile ụlọ resin corrugated na profaịlụ PE jupụtara.
PVC pelletizing- na-atụgharị PVC akọrọ-agwakọta ka ọ bụrụ granules maka downstream ojiji.

PVC board conical twin screw barrel for foam and marble sheet extrusion — Conical ejima ịghasa gbọmgbọm ahaziri maka PVC osisi na ụfụfụ-ibé akwụkwọ extrusion.

Otu esi ahọrọ ezigbo conical ejima ịghasa gbọmgbọm

Nhọrọ na-agbada n'ajụjụ atọ: kedu ihe ị na-agba ọsọ, kedu ihe nrụpụta ị chọrọ, na kedu ka nhazi gị si dị egwu? Jiri matriks dị n'okpuru dị ka mmalite, wee kwadoo nha kpọmkwem megide igwe gị.

Ihe / mkpa gị	Nhazi akwadoro	Nhọrọ elu / ihe onwunwe
PVC ọkpọkọ siri ike & profaịlụ	Ọkọlọtọ geometry conical ruru ka onye mbupụ gị (dịka 55/110, 65/132)	Nitrided 38CrMoAlA maka PVC dị ọcha ma dị ala
PVC + ihe mkpuchi CaCO₃ dị elu	Conical nwere mpaghara uwe agbadosiri ike, ma ọ bụ gbagoro n'ihu na-agbanwe agbanwe	Bimetallic / tungsten-carbide oyi akwa (62 HRC) maka abrasion
WPC / osisi-fiber ogige	Conical nwere ikuku ikuku siri ike na mkpuchi mkpuchi	Bimetallic — eriri osisi + ihe nchacha na-emebi nke ukwuu
PVC ụfụfụ mbadamba / mpempe akwụkwọ	Conical na-ege ntị maka okpomọkụ gbazee na-achịkwa na nrụgide kwụsiri ike	Nitrided ma ọ bụ bimetallic dabere n'ọkwa filler
Mpụta dị elu n'otu akara ukwu	Oke dayameta buru ibu na/ma ọ bụ ogologo dị irè	Dakọtara ike iji na-agba ọsọ awa na ihe ndochi

N'agbanyeghị azịza ya, otu nzọụkwụ kachasị mkpa bụ ijikọ gbọmgbọm ahụ na igwe gị dị ugbu a. Akụkụ conical bụ nke ọma omenala na extruder ha na-agba ọsọ na, otú a ịbịaru - ma ọ bụ a sample na isi akụkụ (nri / die dayameta, etiti anya, n'ozuzu ogologo na flange nkọwa) - na-ahapụ anyị hota kpọmkwem-dabara ndochi kama a "nso zuru ezu" akụkụ. Ọ bụrụ na ịchọrọ ahịrị dum karịa akụrụngwa, anyị na-ewukwa yaigwe extruder zuru oke.

Nwụnye na wiring ntọala

Otu gbọmgbọm ziri ezi na-arụ ọrụ naanị ma ọ bụrụ na etinyere ya square, dị ọcha ma kpochaa ya nke ọma. Nzọụkwụ dị n'okpuru bụ nleba anya n'ozuzu - na-agbaso akwụkwọ ntuziaka nke onye nrụpụta igwe gị na usoro mkpọchi.

Wetuo ike & mechie.Kewapụ ụgbọala ahụ na ndị na-ekpo ọkụ niile tupu iwepu gbọmgbọm ochie. Kweepụta ike efu tupu ịmalite.
Hichaa ihu mating.Wepu ihe mkpuchi ochie, carbon na burrs site na flanges na ịchọta ihu ka oche gbọmgbọm ọhụrụ na-enweghị mgbagha.
Malite ma kwado.Dakọtara gbọmgbọm conical n'ime igbe gearbox/ụlọ nri, na-elele ihe dị mkpa yana na skru na-atụgharị n'efu site n'aka tupu etinye ike.
Waya mpaghara kpo oku.Jikọọ ndị na-ekpo ọkụ band na jụrụ oyi n'otu mpaghara (nri → mkpakọ → metering), ma jikọta thermocouple ọ bụla na ọwa njikwa ziri ezi ka ọ ghara ịfefe mpaghara.
Tọọ profaịlụ soak.Weta gbọmgbọm ahụ ka ọ dị ọkụ nwayọọ nwayọọ ma hapụ ya ka ọ mikpuo nchara wee gbazee nhata tupu ịmalite skru - ịmalite ihe egwu oyi na-emebi mmebi.

Atụmatụ mpaghara ikpo ọkụ:mee ka mpaghara ndepụta ahụ dị jụụ ma mee ka okpomọkụ dị elu ruo ọnwụ. Mpaghara na-ezighi ezi ma ọ bụ nke edoghị anya bụ otu n'ime ihe ndị na-ebutekarị ịwa elu na steetị ojii - kwesịrị ịlele ugboro abụọ mgbe mgbanwe gbọmgbọm ọ bụla gasịrị.

Nchọpụta nsogbu na iyi

Ọtụtụ nsogbu conical gbọmgbọm na-ekwupụta onwe ha dị ka mmepụta anaghị akwụsi ike, ekpo oke ọkụ ma ọ bụ ngwaahịa rere ure. Jiri tebụl a ka ọ pụọ ngwa ngwa site na mgbaàmà wee nwee ike imezi ya.

Mgbaàmà	O yikarịrị ka ọ kpatara ya	Idozi
Mmepụta na-agbanwe / na-arị elu	Na-enye nri adịghị agbanwe agbanwe, ụgbọ elu eyi efe, ma ọ bụ mkpagharị okpomọkụ	Lelee ndepụta, nyochaa ọnọdụ mpaghara, tụọ skru/barrel mkpochapụ
ekpo oke ọkụ	Enweghị nzacha igwe ọkụ, esemokwu karịrị akarị, ma ọ bụ jụrụ oyi	Nyochaa mpaghara ọ bụla na sekit jụrụ oyi; re-map thermocouples
Plasticizing adịghị mma	Ntọala ịghasa ezighi ezi ma ọ bụ mkpọ gbọmgbọm eyi	Nyochaa nhazi; lelee maka mkpochapụ agbasawanye site na eyi
Ahịrị ojii / streaks	Ọkụ nwụrụ anwụ na-ejide ihe mebiri emebi, ma ọ bụ nwere akara	Hichaa ma hichaa nke ọma; nyochaa olulu na ịghasa elu
Oke oke / eyi ngwa ngwa	Ihe nchacha abrasive, mmezi adịghị mma, ma ọ bụ isi ike na-enweghị nkọwa	Kwalite na gbọmgbọm bimetallic / tungsten-carbide; mee ka nchekwa sie ike

Uwe ejiji bụ ihe nkịtị - ihe mgbaru ọsọ bụ ime ka ọ dị ngwa ma nwee ike ịkọ. Abrasive fillers (CaCO₃, osisi fiber, iko) na-awakpo ụgbọ elu na ụgbọ elu ngwa ngwa, nke bụ kpọmkwem ihe mere oyi akwa dị n'ime siri ike na-akwụ ụgwọ maka onwe ya. Elu 62 HRC tungsten agbakwunyere na-adịte aka karịa ogige ndị ahụ karịa ọkọlọtọ 58 HRC imecha, na-agbatị etiti etiti n'etiti nrụgharị.

Ndepụta nlekọta nlekọta

Nleba nkenke, nke oge niile na-egbochi ọdịda ndị dị oke ọnụ. Mepụta ihe ndị a ka ọ bụrụ usoro mmemme gị:

Ogologo oge	Lelee	Omume
Oge mgbanwe ọ bụla	Okpomọkụ mpaghara & amps	Ọgụgụ ndekọ; nyochaa mkpagharị ọ bụla sitere na ntọala
Kwa izu	Agbazekwa àgwà & n'elu imecha	Lelee streaks ọhụrụ, gel ma ọ bụ mgbanwe mmepụta
Kwa ọnwa	Sachapụ & nlele anya mkpọ/nyocha	Kpochapụ ntụpọ nwụrụ anwụ; chọọ akara ma ọ bụ ngbanwe
Nkeji anọ	Mwepu mkpọda / gbọmgbọm	tụọ oghere ahụ; tụnyere spec ka soro ọnụego eyi
Dị ka ọ dị mkpa	Heater & thermocouple iguzosi ike n'ezi ihe	Dochie eriri/sensọ dara ada tupu ha ebute ngwaahịa ọjọọ

Ajụjụ a na-ajụkarị

Kedu ihe bụ conical ejima skru barrel?

Ọ bụ akụkụ extrusion nke ejima nwere taper nke skru abụọ na-atụgharị n'ime gbọmgbọm conical dabara adaba. The taper compresses na plasticizes ihe n'elu a mkpụmkpụ ogologo, na-eme ka conical ịghasa gbọmgbọm maka PVC ọkpọkọ, profaịlụ, mpempe akwụkwọ na WPC extrusion.

Kedu ihe eji eme ya kacha mma?

PVC siri ike (ọkpọụ, profaịlụ, bọọdụ na mpempe akwụkwọ), ihe mejupụtara osisi-plastic, profaịlụ dabere na PE na taịlị resin, yana pelletizing PVC. Ọ na-ejikwa ntụ ntụ na-agwakọta ntụ ntụ dị obere-njupụta nke ọma karịsịa ekele maka nnukwu nri-ngwụsị nri ya.

Kedu ka o si dị iche na gbọmgbọm ejima screw barrel yiri ya?

Igwe okwu mkpuchi conical ma na-ewu mkpakọ dị elu na shii dị nro, dabara na extrusion PVC/WPC kpọmkwem. Amyirịta ejima ịghasa gbọmgbọmna-eme ka dayameta na-adịgide adịgide na shear dị elu, nke dabara na nhazi, masterbatch na usoro dị elu dị elu.

Gịnị bụ ahụkarị mkpochapụ n'etiti skru na gbọmgbọm?

Mwepu bụ obere oghere dị n'etiti ọnụ ụgbọ elu na mgbidi nwere oghere. A na-edobe ya nke ọma na nke ziri ezi n'akụkụ ọhụrụ; ka ọ na-emepe site na iyi, mmepụta na nkwụsị nrụgide. Ịtụ ya mgbe ụfọdụ bụ ụzọ doro anya iji soro uwe gbọmgbọm na-eyi.

Kedu otu m ga-esi tinye conical ejima screw barrel?

Gbanyụọ ma kpọchie, hichaa ihu mating, bulie ma dozie ka skru na-atụgharị kpamkpam, waya mpaghara ikpo ọkụ ọ bụla na thermocouple nke ọma, wee weta gbọmgbọm ahụ ka ọ dị ọkụ nwayọọ nwayọọ ma gbanye ya tupu ịmalite kposara.

Kedu ihe na-akpata iyi na igwe ejima conical screw barrel?

Ihe na-eme ka ọ bụrụ ihe na-adịghị mma dị ka calcium carbonate, eriri osisi na iko, mere ka ọ ka njọ site na corrosion sitere na nhazi PVC, mmezi adịghị mma na isi ike akọwapụtara nke ọma. Igwe bimetallic dị omimi ma ọ bụ tungsten-carbide na-eguzogide atọ ahụ ka mma.

Ugboro ole ka a ga-enyocha ma ọ bụ dochie gbọmgbọm ahụ?

Na-eme nlele anya wee na-ehichapụ akwụkwọ ndenye kwa ọnwa wee tụọ mkpochapụ kwa nkeji. Oge ngbanwe na-adabere na ibu ndochi na awa ịgba ọsọ - soro usoro ejiji kama ichere ọdịda, ma wughachi ma ọ bụ dochie anya ozugbo nkwụsịtụ gafere nkọwapụta gara aga.

Kedu otu m ga-esi họrọ nha ziri ezi maka ahịrị extrusion m?

Dakọtara oke dayameta na ogologo ya na ụdị extruder gị na mmepụta ebumnuche gị, wee họrọ ọgwụgwọ elu dabere n'otú nhazi gị si emebi emebi. Zipu ihe osise ma ọ bụ ihe nlele nwere akụkụ isi ka gbọmgbọm ahụ dabara nke ọma, ọ bụghị ihe dị nso.

Ọ chọrọ igwe ejima conical nke dabara na igwe gị?

Zitere anyị ihe osise gị - ma ọ bụ ihe nlele nwere akụkụ bụ isi - ndị injinia anyị ga-akọwapụta skru conical conical dabara adaba na gbọmgbọm nwere ike siri ike maka ngwa gị. Site na nitriding n'ime ụlọ, nhazi bimetallic na tungsten-carbide, anyị na-ewu akụkụ na-eru 62 HRC n'ime oghere maka ogologo ndụ ọrụ.

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Nanhaiya (Zhoushan) Plastic Machinery · 500+ zuru ụwa ọnụ ahịa ·otu, ejima conical & ejima yiri yaịghasa orù