Our Polyamide PA Nylon Injection Molding Services
Elevate your high-performance production with Yigu Technology’s premium Полиамид (А) Nylon Injection Molding services—where strength meets versatility. Leveraging our injection molding expertise, advanced machinery, and custom tooling, we deliver precision-molded PA Nylon parts that excel in heat, химический, and wear resistance—perfect for automotive, промышленное, Электроника, and medical applications demanding uncompromising durability.

What Is Polyamide (А) Nylon Injection Molding?
Полиамид (А), commonly known as Нейлон, is a family of thermoplastic polymers renowned for their exceptional mechanical strength, теплостойкость, и универсальность. Derived from polyamide monomers, Nylon’s molecular structure (repeating amide links) gives it unique properties that make it ideal for high-stress applications. Инъекционное формование is a manufacturing process that melts Nylon pellets, injects the molten material into a custom mold cavity, cools it to solidify, and ejects the finished part. Вместе, PA Nylon injection molding produces robust, reliable components that outperform many other plastics in demanding environments—from automotive engines to industrial machinery.
Key Definitions & Core Concepts
Термин | Определение |
Полиамид (А) | A thermoplastic polymer family (often called Nylon) characterized by amide functional groups; available in multiple grades (НАПРИМЕР., PA6, ПА66) for diverse uses. |
Нейлон | The common name for PA; coined in the 1930s and now synonymous with high-strength, durable thermoplastics. |
Инъекционное формование (for PA Nylon) | A specialized process optimized for Nylon’s high melting point and viscosity—requires precise temperature control to avoid degradation. |
Material Properties of PA Nylon
PA Nylon’s unique properties set it apart from other injection molding plastics, making it the top choice for high-performance applications:
- Высокая сила: Tensile strength ranges from 50–90 MPa (PA6: 55 МПА; ПА66: 80 МПА)—stronger than ABS, Стр, or PS, and comparable to some metals.
- Теплостойкость: Continuous use temperature (CUT) of 80–150°C (PA6: 80° C.; ПА66: 120° C.; glass-filled PA66: 150° C.)—withstands high temperatures in engines or industrial equipment.
- Химическая устойчивость: Устойчив к маслам, смазки, топливо, и большинство растворителей (except strong acids/bases)—ideal for parts exposed to harsh fluids.
- Износостойкость: Низкий коэффициент трения (0.15–0.30) and high abrasion resistance—perfect for moving parts like gears or bearings.
Долговечность: Отличная устойчивость к усталости (retains strength after repeated stress) и воздействие сопротивления (especially when reinforced with fibers).
Наши возможности: Delivering High-Performance PA Nylon Injection Molding
В Yigu Technology, we specialize in PA Nylon injection molding—our capabilities are tailored to handle Nylon’s unique processing requirements (высокая точка плавления, Чувствительность влаги) and deliver parts that meet the strictest industry standards.
Основные возможности поломки
Способность | Детали | Преимущества для вас |
Экспертиза литья | 18+ years specializing in PA Nylon; engineers trained to optimize processes for different grades (PA6, ПА66, PA12) and reinforcements (glass/ carbon fiber). | Avoid common Nylon pitfalls (НАПРИМЕР., moisture-induced defects, деформация); ensure parts meet performance specs (НАПРИМЕР., heat resistance for engine parts). |
Advanced Machinery | 40+ CNC injection molding machines (зажимная сила: 100–1,000 tons) with closed-loop temperature control and dehumidifying dryers. | Handles Nylon’s high melting point (210–280 ° C.) and viscosity; reduces defects from moisture (a major issue for Nylon). |
Пользовательский инструмент | In-house mold design/fabrication (hardened steel for long runs, beryllium copper for fast cooling); compatible with complex Nylon parts (НАПРИМЕР., передачи, коллекторы). | Molds tailored to your part’s geometry (НАПРИМЕР., intricate industrial components); lead times as short as 3–4 weeks. |
Точное формование | Molding tolerance of ±0.002mm; in-line laser measurement for dimensional accuracy—critical for tight-fitting parts (НАПРИМЕР., электронные разъемы, Компоненты медицинского устройства). | Ensures parts fit and function in high-precision applications (НАПРИМЕР., Автомобильные датчики, Промышленные коробки передач). |
Масштабная продукция | Automated feeding, выброс, and assembly lines; capacity for 1.2 million+ PA Nylon parts/month. | Lowers unit costs for bulk orders (НАПРИМЕР., Автомобильные застежки, consumer product components); on-time delivery rate of 99.5%. |
The PA Nylon Injection Molding Process: Step-by-Step Precision
Nylon’s unique characteristics—high melting point, Чувствительность влаги, and high viscosity—require a specialized, optimized process to ensure quality. Our workflow minimizes defects and maximizes performance, whether you’re producing 50 прототипы или 500,000 Производственные детали.
Шаг 1: Материал подготовка (Critical for Nylon)
Nylon absorbs moisture rapidly (до 3% of its weight in humid conditions), which causes bubbles, деформация, or brittleness in finished parts. Our preparation process eliminates this risk:
- Сушка: Nylon pellets are dried in dehumidifying dryers at 80–120°C for 4–8 hours (PA6: 80°C/4hrs; ПА66: 100°C/6hrs; glass-filled PA: 120°C/8hrs) to reduce moisture content to <0.1%.
- Additive/Filler Blending: Mix dried pellets with добавки (UV stabilizers for outdoor use, flame retardants for electronics) или наполнители (glass fiber for extra strength, carbon fiber for conductivity).
- Хранилище: Dried pellets are stored in sealed containers to prevent reabsorbing moisture before molding.
Шаг 2: Дизайн плесени (Optimized for Nylon)
Nylon’s high shrinkage rate (1–3%, higher than most plastics) and rigidity require mold designs that account for these traits:
- Shrinkage Compensation: Molds are sized 1–3% larger than the final part to account for cooling shrinkage (PA6: 2%; ПА66: 1.5%; glass-filled PA66: 1%).
- Cooling Systems: Beryllium copper mold inserts (для быстрого, uniform cooling) reduce cycle time and prevent warping—critical for thick-walled parts (НАПРИМЕР., промышленные корпусы).
- Проект углов: Minimum 1–2° draft angles (против. 0.5° for ABS) to ease ejection without damaging Nylon’s rigid structure.
Шаг 3: Injection Parameters (Tailored to Nylon Grades)
Nylon’s high melting point and viscosity require precise parameter tuning to avoid degradation (пожелтение) or incomplete filling. Below are standard settings for two common grades:
Параметр | PA6 (Общий назначение) | ПА66 (Высокая сила) | Цель |
Barrel Temperature | 210–250 ° C. | 250–280 ° C. | Melts Nylon evenly without breaking down (too high = yellowing; too low = poor flow). |
Давление впрыска | 80–140 MPa | 100–160 MPa | Overcomes Nylon’s high viscosity to fill mold cavities (critical for thin-walled parts like electronic connectors). |
Температура формы | 40–80°C | 60–100°C | Уменьшает внутренний стресс; enhances crystallinity (for better strength) and surface finish. |
Время цикла | 25–40 seconds | 30–50 seconds | Balances cooling (Чтобы предотвратить деформацию) and production speed. |
Шаг 4: Post-Molding Operations
After demolding, PA Nylon parts may undergo:
- Обрезка: Removing flash (Избыток пластика) with automated tools—critical for parts requiring tight fits (НАПРИМЕР., коробки передач, Компоненты медицинского устройства).
- Отжиг: Heating parts to 80–120°C for 1–2 hours, then cooling slowly—reduces internal stress and prevents warping (common for large or thick Nylon parts).
- Поверхностная обработка: Applying coatings, текстурирование, or printing (См. Раздел 5 Для получения подробной информации).
Осмотр: QC checks for dimensional accuracy (laser measurement), предел прочности (ASTM D638), и теплостойкость (thermogravimetric analysis).
Материалы: Choosing the Right PA Nylon Grade for Your Project
Not all Nylon is the same—each grade (PA6, ПА66, PA12, и т. д.) has unique properties tailored to specific applications. Selecting the right grade ensures your parts meet performance, расходы, and sustainability goals.
Common Nylon Types for Injection Molding
Нейлоновый тип (PA Grade) | Key Traits | Continuous Use Temp (CUT) | Общие приложения |
PA6 | Хорошее воздействие сопротивления (25 KJ /), Легко обрабатывать, рентабельный (3.00–4.00/kg). | 80° C. | Потребительские товары (молнии, ручки инструмента), Автомобильные детали интерьера (дверные панели), электрические разъемы. |
ПА66 | Более высокая сила (растяжение: 80 МПА), better heat/chemical resistance than PA6, more rigid (3.50–4.50/kg). | 120° C. | Автомобильные детали двигателя (нефтяные кастрюли, Крышка клапана), Промышленные шестерни, hydraulic fittings. |
PA12 | Низкое водопоглощение (1.5% против. PA6’s 9%), Отличная химическая устойчивость, гибкий (5.00–6.50/kg). | 90° C. | Медицинские устройства (катетеры, Хирургические инструменты), аэрокосмические компоненты, fuel lines. |
Glass-Filled PA (PA6-GF30, PA66-GF30) | 30% стеклянное волокно; 2x strength (PA66-GF30: растяжение 120 МПА) and 3x stiffness vs. unfilled grades. | 120–150°C | Автомобильные структурные детали (скобки, Компоненты подвески), industrial machinery parts. |
Recycled PA (rPA) | Made from post-industrial/consumer waste; retains 75–85% of virgin PA’s strength (2.50–3.50/kg). | 70–100°C | Некритические части (баки для хранения, игрушечные компоненты), eco-friendly consumer goods. |
Material Selection Tips
- Prioritize temperature needs: For engine parts (120° C+), choose PA66 or glass-filled PA66; for low-temperature use (НАПРИМЕР., медицинские устройства), PA12 works best.
- Balance strength and cost: PA6 is ideal for cost-sensitive, medium-strength parts; PA66-GF30 for high-stress industrial applications (but costs 30% more than PA6).
Embrace sustainability: Our rPA is perfect for brands focused on eco-friendly practices—use it for non-critical parts to cut costs and reduce environmental impact.
Поверхностная обработка: Enhancing PA Nylon’s Function & Эстетика
PA Nylon’s natural surface is smooth but porous (Поглощает влагу), so surface treatments not only improve appearance but also boost performance (НАПРИМЕР., reduce water absorption). We offer five core treatments tailored to Nylon:
Лечение | Процесс | Преимущества | Идеальные приложения |
Поверхностная отделка | Полировка (for gloss) or sandblasting (для матового); seals surface pores. | Улучшает эстетику; reduces water absorption (critical for outdoor parts). | Потребительские товары (ручки инструмента), automotive interior trim. |
Текстурирование | Добавление шаблонов (Риблен, knurled, или мягкий натурал) via mold inserts. | Улучшает сцепление (НАПРИМЕР., ручки инструмента); скрывает незначительные дефекты (НАПРИМЕР., shrink marks). | Промышленные инструменты, medical device grips. |
Покрытие | Applying polyurethane (Пута) or epoxy coatings; seals pores and adds protection. | Boosts chemical resistance (НАПРИМЕР., to fuels) и сопротивление царапина; reduces friction. | Автомобильные топливные линии, industrial hydraulic parts. |
Рисование | Using Nylon-compatible primers (to bond with porous surface) and paints. | Custom colors for branding; УФ -защита (prevents fading in outdoor parts). | Потребительские товары (игрушки, технические приборы), automotive exterior trim. |
Печать | Pad printing or laser marking (avoids ink bleeding into pores). | Прозрачный, durable logos/labels; no risk of ink smudging (critical for medical devices). | Медицинские инструменты (sterilizable labels), Электроника (component markings). |
Преимущества: Why Choose PA Nylon Injection Molding?
PA Nylon injection molding offers unmatched benefits for applications demanding strength, долговечность, and performance—outperforming most other plastics in high-stress environments.
Key Advantages of PA Nylon Injection Molding
- Высокая сила: Stronger than ABS (растяжение: 30–50 МПа) и стр (30–40 МПа)—PA66’s 80 MPa tensile strength makes it a lightweight alternative to metal (НАПРИМЕР., replacing steel in automotive brackets reduces weight by 40%).
- Долговечность: Отличная устойчивость к усталости (длится 10,000+ циклы стресса) and wear resistance—Nylon gears outlast plastic alternatives by 3–5x in industrial machinery.
- Химическая устойчивость: Сопротивляется маслам, топливо, and greases (unlike PP, which swells in oil)—ideal for automotive engine parts or industrial hydraulic components.
- Теплостойкость: Withstands continuous temperatures of 80–150°C (ABS maxes out at 80°C)—works in engine bays or industrial ovens.
- Настраиваемость: Accepts fillers (glass/carbon fiber) для дополнительной силы, additives for UV/flame resistance, and surface treatments for branding—adapts to any application.
PA Nylon vs. Other High-Performance Plastics
Материал | Предел прочности (МПА) | CUT (° C.) | Расходы (за кг) | Лучше всего для |
ПА66 | 80 | 120 | 3.50–4.50 | High-strength automotive/industrial parts. |
PA6 | 55 | 80 | 3.00–4.00 | Cost-effective medium-strength parts. |
АБС | 40 | 80 | 2.50–3.50 | Consumer goods/electronics (низкий стресс). |
Пома (Ацеталь) | 60 | 90 | 4.00–5.00 | Высокие части (передачи), but poor chemical resistance. |
Индустрия приложений: Where PA Nylon Injection Molding Excels
PA Nylon’s versatility—from strength to heat resistance—makes it indispensable in five key industries. Below are real-world use cases and our tailored solutions:
Промышленность | Common PA Nylon Parts | Наши решения |
Автомобиль | Части двигателя (нефтяные кастрюли, Крышка клапана), Подвесные кронштейны (PA66-GF30), Дверные ручки (PA6), топливные линии (PA12). | Heat-resistant PA66/PA66-GF30; chemical-resistant coatings; precision molding for tight engine fits. |
Потребительские товары | Ручки инструмента (PA6), молнии (PA6), luggage wheels (PA6-GF20), appliance components (ПА66). | Impact-resistant PA6; textured finishes for grip; cost-effective high-volume production. |
Электроника | Корпуса разъемов (PA6), Окружная плата поддерживает (PA66-GF30), батарея (flame-retardant PA6). | Flame-retardant additives (meets UL94 V0); precision molding for small, intricate parts. |
Промышленные детали | Передачи (PA66-GF30), подшипники (PA12), Гидравлические фитинги (ПА66), Конвейерные компоненты (PA6-GF20). | Wear-resistant grades; glass/carbon fiber fillers for strength; low-friction coatings. |
Медицинские устройства | Хирургические ручки инструмента (PA12), катетеры (flexible PA12), Диагностическое оборудование корпуса (ПА66). | FDA-совместимость, biocompatible PA12; гладкая отделка (легко стерилизовать); precision molding for small parts. |
Тематические исследования: Our PA Nylon Injection Molding Success Stories
Тематическое исследование 1: PA66-GF30 Automotive Suspension Brackets (Continued)
- Испытание: Нужен ведущий автопроизводитель 200,000 suspension brackets that were lightweight (Для повышения эффективности использования топлива), strong enough to withstand 100,000+ km of road stress, и термостойкий (to handle engine bay temperatures up to 120°C). Their previous steel brackets added unnecessary weight, increasing fuel consumption.
- Решение: Мы рекомендовали PA66-GF30 (30% glass-filled PA66) for its high tensile strength (120 МПА) and 150°C continuous use temperature. Our team designed custom steel molds with shrinkage compensation (1% for PA66-GF30) and beryllium copper cooling inserts to prevent warping. We also added a UV-stabilized coating to protect the brackets from outdoor exposure.
- Результаты: The PA66-GF30 brackets were 40% легче, чем сталь (reducing the car’s total weight by 2.5 кг) and improved fuel efficiency by 3%. They passed 150,000 km durability tests with no cracks or deformation, and the automaker expanded their order to 500,000 units/year—citing our “ability to balance strength and lightweight design.”
Тематическое исследование 2: FDA-Compliant PA12 Medical Catheters
- Испытание: Компания по медицинским устройствам нужна была 50,000 flexible catheters that were biocompatible (встречает ISO 10993), resistant to bodily fluids (blood, солевой раствор), and sterilizable via ethylene oxide (Расстановка). Their previous PP catheters were too rigid and caused patient discomfort.
- Решение: Мы выбрали PA12 for its low water absorption (1.5%), Гибкость (elongation at break: 300%), and FDA compliance. Our process included drying PA12 pellets at 100°C for 6 часы (к <0.05% влага) and using precision molds with smooth inner surfaces (Чтобы предотвратить раздражение ткани). Post-molding, we applied a hydrophilic coating to reduce friction during insertion.
- Результаты: The PA12 catheters were 50% more flexible than PP alternatives, reducing patient discomfort scores by 40% (per clinical feedback). They passed 100+ EtO sterilization cycles with no degradation and met all ISO 10993 Стандарты биосовместимости. The client extended our partnership to produce their entire line of urological catheters.
Тематическое исследование 3: PA6-GF20 Industrial Gear Assemblies
- Испытание: A manufacturer of conveyor systems needed 10,000 gear assemblies that could withstand continuous use (24/7 операция), resist lubricating oil, and have low wear (to reduce maintenance costs). Their previous ABS gears failed after 3 months of use due to low abrasion resistance.
- Решение: Мы использовали PA6-GF20 (20% glass-filled PA6) for its high wear resistance (coefficient of friction: 0.20) and oil resistance. Our custom tooling included mold inserts with textured surfaces (to improve lubricant retention) and we optimized injection parameters (230°C barrel temperature, 120 МПА давление) to ensure full filling of the gears’ teeth. Post-molding, we annealed the gears at 90°C for 2 hours to reduce internal stress.
Результаты: The PA6-GF20 gears lasted 18 месяцы (6x longer than ABS) и снижение затрат на техническое обслуживание 70%. They showed no swelling or degradation after 12 months of exposure to lubricating oil, and the client now uses our PA Nylon gears for all their conveyor systems worldwide.
Why Choose Us for Your PA Nylon Injection Molding Needs?
With countless injection molding suppliers offering PA Nylon services, Yigu Technology stands out for our deep expertise, uncompromising quality, and client-centric approach. Here’s why leading brands in automotive, медицинский, and industrial sectors trust us:
1. Specialized PA Nylon Expertise
We don’t just “do” injection molding—we specialize in PA Nylon. У наших инженеров есть 18+ years of experience optimizing processes for every Nylon grade (PA6, ПА66, PA12, Стекло заполнен, переработан) and solving its unique challenges (Чувствительность влаги, Высокая усадка, viscosity). We’ve developed proprietary drying protocols (к <0.1% влага) and mold design techniques (shrinkage compensation, fast cooling) that ensure consistent, high-performance parts—something generalist molders can’t match.
2. Rigorous Quality Assurance
Quality is embedded in every step of our process. Мы держим Iso 9001 (Общее производство) и Iso 13485 (Производство медицинских устройств) сертификаты, с 99.8% defect-free rate for PA Nylon parts. Our quality checks include:
- Pre-molding: Moisture testing of Nylon pellets (via Karl Fischer titration) to prevent defects.
- In-molding: Real-time laser measurement of part dimensions (±0.002mm tolerance) and temperature monitoring.
- Post-molding: Tensile strength testing (ASTM D638), heat resistance testing (thermogravimetric analysis), and chemical resistance testing (immersion in oils/fuels).
3. Customer-Focused Service
We treat your project as if it’s our own. From day one, you’ll work with a dedicated account manager who:
- Provides free material selection consultations (НАПРИМЕР., helping you choose between PA6 and PA66-GF30 based on your performance needs).
- Shares 3D mold designs for approval before production (to avoid costly revisions).
- Offers flexible lead times (4–6 days for prototypes, 3–5 weeks for high-volume runs) и 24/7 Поддержка срочных запросов.
- Delivers detailed production reports (показатели дефектов, Ввременная доставка, material usage) to keep you informed.
4. Инновационные решения
Мы инвестируем 9% нашего годового дохода в R&D to push the boundaries of PA Nylon injection molding. Recent innovations include:
- Low-Moisture PA Blends: A proprietary mix of PA66 and hydrophobic additives that reduces moisture absorption by 50%—ideal for outdoor parts.
- Fast-Cycle Molding: Custom beryllium copper molds that cut cycle time for PA66 parts by 25% (from 40s to 30s) without sacrificing quality.
- Sustainable PA Composites: A blend of 50% recycled PA (rPA) и 50% virgin PA66 that retains 90% of virgin PA66’s strength—perfect for eco-conscious brands.
5. Sustainable Practices
We’re committed to reducing our environmental impact while delivering top-tier PA Nylon parts:
- Recycled PA (rPA): Мы источны 40% of our PA materials from post-industrial waste (НАПРИМЕР., Nylon scrap from automotive manufacturing) and offer rPA grades that cost 15–20% less than virgin PA.
- Сокращение отходов: We recycle 98% of production scrap (вспышка, дефектные части) back into the molding process—sending less than 2% to landfills.
Энергоэффективность: Our injection molding machines use variable-frequency drives (VFDs) and heat recovery systems to reduce energy consumption by 28% против. standard equipment.