A na-ejikarị extruders nke okpukpu abụọ eme ihe maka ịgwakọta na ịkpacha thermoplastics. The two-stage structure is suitable for processing various materials, such as PVC and XLPE cable materials, soft PVC medical materials, hard PVC and PE low-smoke halogen-free fuel-resistant materials, etc.
With over 18 years of expertise in plastic extrusion technology and direct collaboration with 200+ global manufacturers (including automotive, cable, and medical device producers), I’ve witnessed the transformative impact of two stage extruders on compounding efficiency and material quality. Unlike single-stage extrusion systems, Nrụpụta nke tandem extrusion na-eleba anya n'ihe ịma aka dị oke mkpa nke ịhazi oke mmepụta ya na njikwa a na-achịkwa nke ọma na njikwa okpomọkụ - na-eme ka ọ bụrụ ọkọlọtọ ọla edo maka nhazi nke ọma ma ọ bụ thermoplastics dị elu dị ka PVC., XLPE, na obere anwụrụ ọkụ zero-halogen (LSZH) ihe.
Nke Ụlọ ọrụ Tandem Extruder nke abụọ na-anọchi anya ihe ngwọta extrusion pụrụ iche emebere ya maka ịgbakọta nke ọma na ịkpacha thermoplastics, ebe njikwa usoro na iguzosi ike n'ezi ihe na-enweghị mkparịta ụka. Usoro nhazi nke abụọ nke usoro ahụ na-ekewa usoro extrusion n'ime ụzọ abụọ, usoro mmekota, nke ọ bụla akwadoro maka otu ọrụ — na-ewepu ahia ahia dị na ndị na-apụ apụ n'otu ọkwa..
Nke mbụ ogbo ejima extruder na-emekarị na-agba ọsọ na elu ọsọ maka mma compounding na elu mmepụta. Nke a dị elu-ọsọ ejima-ịghasa ngalaba nke ọma na kpụ ọkụ n'ọnụ ngwakọta, homogenization, na agbaze nke akụrụngwa, leveraging intermeshing ịghasa geometry iji hụ na nkesa otu nke mgbakwunye, ihe ndochi, ma ọ bụ nkwalite (eg., eriri iko, ọkụ retardants). Ọsọ ntụgharị dị elu (ruo 500 rpm maka ụdị Zhuoyue) maximizes compounding arụmọrụ, nhazi ọbụna mgbagwoju ihe formulations na ọnụ ọgụgụ.
Nke abụọ ogbo ga-abụ otu ịghasa extruder, na nnukwu dayameta na arụ ọrụ ọsọ dị ala. Ọsọ skru dị ala na-ezere ike ịkpa oke - uru dị oke mkpa maka ihe ndị nwere mmetụta ọkụ dị ka PVC dị nro nke ahụike ma ọ bụ ogige XLPE., ebe ịkpacha ihe karịrị akarị nwere ike mebie ihe owuwu molekụla, imebi n'ibu Njirimara, or cause thermal degradation. Due to the strong heat exchange ability, the internal cooling system can effectively prevent overheating, maintaining precise temperature control across the second-stage barrel to ensure consistent melt viscosity and product quality.
Nke Two Stage Tandem Extruder Manufacturer allows the operator to perform more flexible, predictable mixing processes and temperature control. By separating compounding (stage 1) and shaping/extrusion (stage 2), operators can independently adjust parameters (speed, okpomọkụ, feed rate) for each stage, tailoring the process to the unique requirements of each material—from rigid PVC pipe compounds to soft medical-grade PVC or LSZH cable materials.
The high-speed twin-screw first stage delivers intensive mixing that single-screw extruders cannot match, ensuring uniform dispersion of additives (eg., plasticizers, stabilizers, ọkụ retardants) and consistent material properties batch-to-batch. Third-party testing by the China Plastic Machinery Industry Association (CPMIA) confirms that Zhuoyue’s two stage extruders achieve 98% homogenization accuracy for PVC compounds—15% higher than single-stage alternatives.
The low-speed single-screw second stage eliminates over-shearing and overheating, protecting heat-sensitive materials from degradation. Ọmụmaatụ, when processing soft PVC medical materials (used in IV tubing or surgical devices), the system maintains a temperature variance of ±1°C, ensuring compliance with ISO 10993 biocompatibility standards and avoiding material discoloration or brittleness.
The tandem design combines high compounding efficiency (stage 1) with steady extrusion (stage 2), delivering 30-50% higher throughput than single-stage twin-screw extruders of equivalent size. A Zhuoyue ZYT65-150 model produces 300-500 kg/hr of XLPE cable material—compared to 200-300 kg/hr from a single-stage 65mm twin-screw extruder—while maintaining strict quality control over electrical insulation properties.
The flexible parameter adjustment and dual-stage design make the system compatible with a wide range of thermoplastics, from commodity resins to high-performance engineering materials. This versatility eliminates the need for multiple dedicated extruders, reducing capital expenditure and factory floor space for manufacturers processing diverse material formulations.
Precise temperature and shearing control minimize material scrap (na-emekarị <2% for Zhuoyue systems, compared to 5-8% for single-stage extruders) and reduce energy consumption by 18% per kg of finished compound. For high-volume production (eg., cable material manufacturing), this translates to annual cost savings of $50,000-$150,000 for mid-sized facilities.
The two stage extruder is mainly used for the compounding of thermoplastic and shearing. double-stage structure are suitable for processing a variety of materials, with applications spanning high-precision and high-volume industries where material consistency is critical:
Usoro extruder nke abụọ nke Zhuoyue (ZYT50-120 ruo ZYT95-200) na-engineer ka ọnụ ọgụgụ na mmepụta mkpa, site na obere-ogbe ọpụrụiche compounding (ZYT50-120) ka nnukwu ụlọ ọrụ mmepụta ihe (ZYT95-200). Modelsdị niile na-edobe isi ụkpụrụ imewe nkeji-ọsọ — ịgbakọta ọsọ dị elu, obere-ọsọ extrusion, na nkenke jụrụ oyi-ya na nkọwapụta ahaziri maka ntinye na ụdị ihe:
| Nlereanya | Dayameta (mm) | Oke. Ọsọ (rpm) | L/D | moto (kW) | Mpụta (n'arọ / h) |
|---|---|---|---|---|---|
| ZYT50-120 | 50.5/120 | 500/85 | 24-48 | 37-45 | 200-300 |
| ZYT65-150 | 62.4/150 | 500/85 | 24-48 | 75/45 | 300-500 |
| ZYT75-180 | 71/180 | 500/85 | 24-48 | 110/55 | 300-800 |
| ZYT95-200 | 93/200 | 300/85 | 24-48 | 220/110 | 500-1000 |
Ndetu nkọwapụta igodo: Ọnụ ahịa dayameta na-anọchite anya ọkwa 1 (ejima-ịghasa) / stage 2 (otu-ịghasa) dayameta gbọmgbọm. Ọsọ ọsọ kacha na-egosipụta ọkwa 1 / stage 2 ntughari ọsọ (rpm). Oke L/D (24-48) na-agbanwe agbanwe n'ofe mpaghara gbọmgbọm iji bulie agbaze na jụrụ oyi maka ihe dị iche iche - oke dị mkpụmkpụ (24) maka plastik izugbe dị elu, ogologo oke (48) maka ihe ọpụrụiche na-emetụ ọkụ.
Zhuoyue niile Lab Twin Screw Extruder abụọ extruders ogbo nwere njikwa okpomọkụ PID mechiri emechi nwere ntụ oyi nke mpaghara akọwapụtara (mmiri/mmanụ) maka usoro abụọ ahụ. gbọmgbọm agba nke abụọ na-agụnye ọwa jụrụ oyi na mgbidi na ihe mmetụta ọkụ na-adọba 100mm ọ bụla., na-ejigide ± 0.5 ° C ziri ezi-dị oke mkpa maka nhazi LSZH na PVC ọkwa ahụike. International Electrotechnical Commission kwadoro imewe a (IEC) maka nnabata na ụkpụrụ njikwa okpomọkụ ụlọ ọrụ (IEC 61131-2).
Ogbo 1 A na-esi na nitrided alloy steel arụpụta skru ejima (38CrMoAlA) na elu ike nke HRC 65, mgbe ogbo 2 otu skru na-eji mkpuchi bimetallic (Stellites 6) n'ihi na abrasion eguzogide-agbatị akụkụ ndụ ka 8,000+ awa ọrụ (2x ogologo karịa ọkọlọtọ extruders). A na-eji ceramics na-eguzogide ọgwụ kpuchie gbọmgbọm maka nhazi ihe ndị jupụtara (eg., PVC carbonate jupụtara na calcium), ibelata mmezi downtime site 60%.
Dabara na nchekwa zuru ụwa ọnụ na ụkpụrụ ịdị mma (CE, ISO 9001, UL 508A maka akụrụngwa eletriki, na FDA 21 CFR 177.1520 maka nri/ngwa kọntaktị ngwa), ndị extruders gụnyere usoro nkwụsị mberede, ndị nche kpọchiri akpọchi, na thermal bufee nchebe. Maka ndị na-emepụta ngwaọrụ ahụike, Zhuoyue na-enye nhazi ụlọ dị ọcha dakọtara (Klas 8 ISO 14644-1) iji zute ihe ndị chọrọ mmepụta ihe.
Ndị na-apụ apụ nwere ihu ihu HMI (mmadụ-igwe interface) nwere profaịlụ ihe emebere nke ọma (eg., PVC, XLPE, LSZH) iji mee ka ntọlite dị mfe - ibelata oge ọzụzụ onye ọrụ site na 70%. Nhazi akụrụngwa modular na-enye ohere maka ngbanwe skru/barrel ngwa ngwa (≤3 awa) na nlekọta na saịtị, na-ebelata nkwụsị mmepụta. Ikike nleba anya na nyocha nyocha na-enyere nkwado teknụzụ ozugbo sitere na ụlọ ọrụ ọrụ Zhuoyue zuru ụwa ọnụ. (USA, EU, Ndịda Ebe Ọwụwa Anyanwụ Eshia).
Onye na-emepụta eriri USB na-eduga (dabere na Germany) dochie atọ otu-ogbo extruders na abụọ Zhuoyue ZYT65-150 abụọ ogbo extruders na 2024 iji wepụta mmepụta nke ogige XLPE ọkara-voltaji. Nsonaazụ gosipụtara uru a na-ahụ anya nke imepụta tandem:
Onye nrụpụta kwuru na ikike ZYT65-150 iji hazie XLPE na nkesa ndị na-emekọrịta ihe na-agbanwe agbanwe belata ọnụego ọdịda USB site na. 90% na ubi ule, enhancing their market reputation for high-quality power cables.
To highlight the unique value of tandem extrusion systems, below is a side-by-side comparison with single-stage twin-screw and single-screw extruders for key performance metrics:
| Performance Metric | Abụọ Stage Extruder (Zhuoyue) | Single-Stage Twin-Screw Extruder | Single-Stage Single-Screw Extruder |
|---|---|---|---|
| Homogenization Accuracy | 98% | 83% | 75% |
| Max Throughput (kg/hr for 65mm base) | 500 | 300 | 130 |
| Oriri ike (kWh/kg) | 0.62 | 0.78 | 0.95 |
| Kwesịrị ekwesị maka ihe ndị na-emetụ ọkụ | Magburu onwe (achịkwa ịkpachasị ihe / oyi) | Ọmarịcha (risk of overheating) | Poor (mmachi ịgwakọta / okpomọkụ akara) |
| Maintenance Downtime (hours/year) | 40 | 85 | 60 |
Mgbe 18 afọ nke injinia na imezi teknụzụ extrusion tandem, Ndị na-ebupụ ọkwa abụọ nke Zhuoyue pụtara ìhè maka ike ha na-ebupụta ihe dị elu, precise process control, na nrube isi nke usoro iwu-dị oke mkpa maka ndị nrụpụta na ụlọ ọrụ ndị a na-achịkwa (ọgwụ, ụgbọ ala, cable). N'adịghị ka generic abụọ ogbo extruders, A na-akwado sistemụ Zhuoyue:
Ma ị na-ejikọta PVC ọkwa ahụike, XLPE cable materials, or LSZH compounds, Zhuoyue abụọ ogbo extruders na-ahụ na agbanwe agbanwe, ọnụ ahịa arụmọrụ, na scalability-enyere gị aka izute ahịa ahịa na-eto eto ka ị na-agbaso ụkpụrụ ụlọ ọrụ siri ike.
A: Ee. Zhuoyue na-enye nhazi nke kwekọrọ na FDA yana mmanụ mmanye ọkwa nri, polished barrels/screws (Ra ≤ 0.8μm), and clean-in-place (CIP) systems to meet FDA 21 CFR 177.1520 ihe a chọrọ maka plastik kọntaktị nri (eg., Ngwakọta PE / PP maka nkwakọ ngwaahịa).
A: Standard ZYT95-200 models have a lead time of 10-12 izu. Nhazi omenala (eg., cleanroom compatibility, special screw profiles for LSZH) chọrọ 14-16 izu. Mmepụta ngwa ngwa (8-oge ụzọ izu) dị maka mgbakwunye 15% of the unit cost.
A: For general plastic compounding (eg., PVC siri ike), screws/barrels last 8,000+ awa ọrụ (≈1 afọ maka 24/7 mmepụta). Maka ihe abrasive dị ukwuu (eg., 50% PVC carbonate jupụtara na calcium), a chọrọ ngbanwe ọ bụla 4,000-6,000 awa. Zhuoyue na-enye sọftụwia mmezi amụma iji nyochaa uwe na ịhazi oge nnọchi nke ọma.
A: Ee. Nkeji mbụ nke dị elu na-agwakọta ma gbazekwa plastics megharịrị mgbe ndị ahịa gachara / ụlọ ọrụ mechara. (eg., scrap eriri XLPE megharịrị arụgharịgharị) na resins na-amaghị nwoke, ebe ogbo nke abụọ dị obere na-egbochi ịkpacha agbụ polymer mebiri emebi. Zhuoyue nwere ike hazie profaịlụ ịghasa iji kwalite nhazi ihe eji emegharị ihe nwere ọkwa adịghị ọcha dị elu..
A: Mmemme ọzụzụ Zhuoyue gụnyere 2 ụbọchị nke na saịtị aka-na ọzụzụ (kwa onye ọrụ) mkpuchi: Ntọala parameter maka ihe dị iche iche, mmezi oge niile (mmanu mmanu, nyo mgbanwe), nchọpụta nsogbu nkịtị (eg., mgbanwe okpomọkụ, material bridging), and quality control testing. We also provide a comprehensive operator manual (English/Spanish/German/French) and access to on-demand video tutorials.
As a trusted partner to global manufacturers for nearly two decades, Zhuoyue’s two stage extruders are designed to deliver not just equipment, but a complete compounding solution that aligns with your quality, arụmọrụ, and compliance goals. Contact our technical team to discuss your specific material processing needs and request a free feasibility analysis for your production line.
WhatsApp: +86-180-6160-9050
Email:ryan_zhou@zextrusion.com
Adreesị: Ime ụlọ 1-2012, Mba. 69 Okporo ụzọ Feitian, Mpaghara mmepe akụ na ụba Jiangning ọdụ ụgbọ elu, Nanjing, Jiangsu Province, China
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