Our Polyamide PA Nylon Injection Molding Services
Elevate your high-performance production with Yigu Technology’s premium Polyamid (Pa) 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, Chemikalie, and wear resistance—perfect for automotive, industriell, Elektronik, and medical applications demanding uncompromising durability.

What Is Polyamide (Pa) Nylon Injection Molding?
Polyamid (Pa), commonly known as Nylon, is a family of thermoplastic polymers renowned for their exceptional mechanical strength, Wärmewiderstand, und Vielseitigkeit. Derived from polyamide monomers, Nylon’s molecular structure (repeating amide links) gives it unique properties that make it ideal for high-stress applications. Injektionsformung is a manufacturing process that melts Nylon pellets, injiziert das geschmolzene Material in einen benutzerdefinierten Schimmelpilzhöhle, cools it to solidify, und schlägt den fertigen Teil aus. Zusammen, PA Nylon injection molding produces robust, reliable components that outperform many other plastics in demanding environments—from automotive engines to industrial machinery.
Schlüsseldefinitionen & Core Concepts
Begriff | Definition |
Polyamid (Pa) | A thermoplastic polymer family (often called Nylon) characterized by amide functional groups; available in multiple grades (Z.B., Pa6, PA66) for diverse uses. |
Nylon | The common name for PA; coined in the 1930s and now synonymous with high-strength, durable thermoplastics. |
Injektionsformung (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:
- Hohe Stärke: Tensile strength ranges from 50–90 MPa (Pa6: 55 MPA; PA66: 80 MPA)—stronger than ABS, Pp, or PS, and comparable to some metals.
- Wärmewiderstand: Continuous use temperature (CUT) of 80–150°C (Pa6: 80° C; PA66: 120° C; glass-filled PA66: 150° C)—withstands high temperatures in engines or industrial equipment.
- Chemischer Widerstand: Öle resistent, Fetten, Brennstoffe, und die meisten Lösungsmittel (except strong acids/bases)—ideal for parts exposed to harsh fluids.
- Resistenz tragen: Geringer Reibungskoeffizient (0.15–0.30) and high abrasion resistance—perfect for moving parts like gears or bearings.
Haltbarkeit: Hervorragende Müdigkeitsbeständigkeit (retains strength after repeated stress) und Schlagfestigkeit (especially when reinforced with fibers).
Unsere Fähigkeiten: Delivering High-Performance PA Nylon Injection Molding
Bei Yigu Technology, we specialize in PA Nylon injection molding—our capabilities are tailored to handle Nylon’s unique processing requirements (hoher Schmelzenpunkt, Feuchtigkeitsempfindlichkeit) and deliver parts that meet the strictest industry standards.
Kernfunktionen Aufschlüsselung
Fähigkeit | Details | Vorteile für Sie |
Fachkenntnisse in Injektionsform | 18+ years specializing in PA Nylon; engineers trained to optimize processes for different grades (Pa6, PA66, PA12) and reinforcements (glass/ carbon fiber). | Avoid common Nylon pitfalls (Z.B., moisture-induced defects, Warping); ensure parts meet performance specs (Z.B., heat resistance for engine parts). |
Advanced Machinery | 40+ CNC injection molding machines (Klemmkraft: 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). |
Benutzerdefinierte Werkzeuge | In-house mold design/fabrication (hardened steel for long runs, beryllium copper for fast cooling); compatible with complex Nylon parts (Z.B., Getriebe, Verteiler). | Formen, die auf die Geometrie Ihres Teils zugeschnitten sind (Z.B., intricate industrial components); lead times as short as 3–4 weeks. |
Präzisionsformung | Molding tolerance of ±0.002mm; in-line laser measurement for dimensional accuracy—critical for tight-fitting parts (Z.B., elektronische Anschlüsse, Komponenten für medizinische Geräte). | Ensures parts fit and function in high-precision applications (Z.B., Automobilsensoren, Industriegetriebe). |
Produktion mit hoher Volumen | Automated feeding, Auswurf, and assembly lines; capacity for 1.2 million+ PA Nylon parts/month. | Lowers unit costs for bulk orders (Z.B., Kfz -Befestigungselemente, 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, Feuchtigkeitsempfindlichkeit, and high viscosity—require a specialized, optimized process to ensure quality. Our workflow minimizes defects and maximizes performance, whether you’re producing 50 Prototypen oder 500,000 Produktionsteile.
Schritt 1: Materialvorbereitung (Critical for Nylon)
Nylon absorbs moisture rapidly (bis zu 3% of its weight in humid conditions), which causes bubbles, Warping, or brittleness in finished parts. Our preparation process eliminates this risk:
- Trocknen: Nylon pellets are dried in dehumidifying dryers at 80–120°C for 4–8 hours (Pa6: 80°C/4hrs; PA66: 100°C/6hrs; glass-filled PA: 120°C/8hrs) to reduce moisture content to <0.1%.
- Additive/Filler Blending: Mix dried pellets with Zusatzstoffe (UV -Stabilisatoren für den Gebrauch im Freien, flame retardants for electronics) oder Füllstoffe (glass fiber for extra strength, carbon fiber for conductivity).
- Lagerung: Dried pellets are stored in sealed containers to prevent reabsorbing moisture before molding.
Schritt 2: Schimmeldesign (Optimized for Nylon)
Nylon’s high shrinkage rate (1–3%, higher than most plastics) and rigidity require mold designs that account for these traits:
- Schrumpfungsausgleich: Molds are sized 1–3% larger than the final part to account for cooling shrinkage (Pa6: 2%; PA66: 1.5%; glass-filled PA66: 1%).
- Kühlsysteme: Beryllium copper mold inserts (für schnell, gleichmäßige Kühlung) reduce cycle time and prevent warping—critical for thick-walled parts (Z.B., Industriehaus).
- Entwurfswinkel: Minimum 1–2° draft angles (vs. 0.5° for ABS) to ease ejection without damaging Nylon’s rigid structure.
Schritt 3: Injektionsparameter (Tailored to Nylon Grades)
Nylon’s high melting point and viscosity require precise parameter tuning to avoid degradation (vergilbt) or incomplete filling. Below are standard settings for two common grades:
Parameter | Pa6 (Allgemeinzweck) | PA66 (Hochfest) | Zweck |
Lauftemperatur | 210–250 ° C. | 250–280 ° C. | Melts Nylon evenly without breaking down (too high = yellowing; too low = poor flow). |
Injektionsdruck | 80–140 MPa | 100–160 MPa | Overcomes Nylon’s high viscosity to fill mold cavities (critical for thin-walled parts like electronic connectors). |
Schimmelpilztemperatur | 40–80°C | 60–100°C | Reduziert den inneren Stress; enhances crystallinity (for better strength) and surface finish. |
Zykluszeit | 25–40 seconds | 30–50 seconds | Balances cooling (Umverrückt zu verhindern) und Produktionsgeschwindigkeit. |
Schritt 4: Nachbereitungsvorgänge
Nach dem Ermachung, PA Nylon parts may undergo:
- Trimmen: Removing flash (überschüssiges Plastik) with automated tools—critical for parts requiring tight fits (Z.B., Getriebe, Komponenten für medizinische Geräte).
- Glühen: 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).
- Oberflächenbehandlung: Applying coatings, Texturierung, or printing (Siehe Abschnitt 5 für Details).
Inspektion: QC checks for dimensional accuracy (laser measurement), Zugfestigkeit (ASTM D638), und Wärmewiderstand (thermogravimetric analysis).
Materialien: Choosing the Right PA Nylon Grade for Your Project
Not all Nylon is the same—each grade (Pa6, PA66, PA12, usw.) has unique properties tailored to specific applications. Selecting the right grade ensures your parts meet performance, kosten, and sustainability goals.
Common Nylon Types for Injection Molding
Nylon -Typ (PA Grade) | Key Traits | Dauergebrauchstemp (CUT) | Gemeinsame Anwendungen |
Pa6 | Gute Aufprallfestigkeit (25 KJ /), leicht zu verarbeiten, kostengünstig (3.00–4.00/kg). | 80° C | Verbraucherprodukte (Reißverschlüsse, Werkzeuggriffe), Kfz -Innenteile (Türplatten), elektrische Anschlüsse. |
PA66 | Höhere Stärke (Zug: 80 MPA), better heat/chemical resistance than PA6, more rigid (3.50–4.50/kg). | 120° C | Kfz -Motorteile (Ölpfannen, Ventilabdeckungen), Industriezüge, hydraulic fittings. |
PA12 | Niedrige Wasserabsorption (1.5% vs. PA6’s 9%), Hervorragende chemische Resistenz, flexibel (5.00–6.50/kg). | 90° C | Medizinprodukte (Katheter, chirurgische Werkzeuge), Luft- und Raumfahrtkomponenten, fuel lines. |
Glass-Filled PA (PA6-GF30, PA66-GF30) | 30% Glasfaser; 2x strength (PA66-GF30: Zug 120 MPA) and 3x stiffness vs. unfilled grades. | 120–150°C | Automobilstrukturteile (Klammern, Suspensionskomponenten), 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 | Nicht kritische Teile (Lagerbehälter, Spielzeugkomponenten), eco-friendly consumer goods. |
Tipps zur Materialauswahl
- Prioritize temperature needs: For engine parts (120° C+), choose PA66 or glass-filled PA66; for low-temperature use (Z.B., Medizinprodukte), 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).
Nachhaltigkeit umarmen: Our rPA is perfect for brands focused on eco-friendly practices—use it for non-critical parts to cut costs and reduce environmental impact.
Oberflächenbehandlung: Enhancing PA Nylon’s Function & Ästhetik
PA Nylon’s natural surface is smooth but porous (absorbiert Feuchtigkeit), so surface treatments not only improve appearance but also boost performance (Z.B., reduce water absorption). We offer five core treatments tailored to Nylon:
Behandlung | Prozess | Vorteile | Ideale Anwendungen |
Oberflächenbearbeitung | Polieren (for gloss) oder Sandstrahlung (für Matte); seals surface pores. | Verbessert die Ästhetik; reduces water absorption (critical for outdoor parts). | Verbraucherprodukte (Werkzeuggriffe), automotive interior trim. |
Texturierung | Hinzufügen von Mustern (Rippen, knurled, oder Soft-Touch) via mold inserts. | Verbessert den Griff (Z.B., Werkzeuggriffe); versteckt kleinere Mängel (Z.B., shrink marks). | Industriewerkzeuge, medical device grips. |
Beschichtung | Applying polyurethane (Pu) or epoxy coatings; seals pores and adds protection. | Boosts chemical resistance (Z.B., to fuels) und Kratzerfestigkeit; reduces friction. | Kfz -Kraftstoffleitungen, industrial hydraulic parts. |
Malerei | Using Nylon-compatible primers (to bond with porous surface) and paints. | Benutzerdefinierte Farben für das Branding; UV -Schutz (prevents fading in outdoor parts). | Verbraucherprodukte (Spielzeug, Geräte), automotive exterior trim. |
Drucken | Pad printing or laser marking (avoids ink bleeding into pores). | Klar, durable logos/labels; no risk of ink smudging (critical for medical devices). | Medizinische Werkzeuge (sterilizable labels), Elektronik (component markings). |
Vorteile: Why Choose PA Nylon Injection Molding?
PA Nylon injection molding offers unmatched benefits for applications demanding strength, Haltbarkeit, and performance—outperforming most other plastics in high-stress environments.
Key Advantages of PA Nylon Injection Molding
- Hohe Stärke: Stronger than ABS (Zug: 30–50 MPa) und pp (30–40 MPa)—PA66’s 80 MPa tensile strength makes it a lightweight alternative to metal (Z.B., replacing steel in automotive brackets reduces weight by 40%).
- Haltbarkeit: Hervorragende Müdigkeitsbeständigkeit (dauert 10,000+ Stresszyklen) and wear resistance—Nylon gears outlast plastic alternatives by 3–5x in industrial machinery.
- Chemischer Widerstand: Widersteht den Ölen, Brennstoffe, and greases (unlike PP, which swells in oil)—ideal for automotive engine parts or industrial hydraulic components.
- Wärmewiderstand: Withstands continuous temperatures of 80–150°C (ABS maxes out at 80°C)—works in engine bays or industrial ovens.
- Anpassbarkeit: Accepts fillers (glass/carbon fiber) für zusätzliche Stärke, additives for UV/flame resistance, and surface treatments for branding—adapts to any application.
PA Nylon vs. Other High-Performance Plastics
Material | Zugfestigkeit (MPA) | CUT (° C) | Kosten (pro kg) | Am besten für |
PA66 | 80 | 120 | 3.50–4.50 | High-strength automotive/industrial parts. |
Pa6 | 55 | 80 | 3.00–4.00 | Cost-effective medium-strength parts. |
ABS | 40 | 80 | 2,50–3,50 | Consumer goods/electronics (Niedriger Stress). |
Pom (Acetal) | 60 | 90 | 4.00–5.00 | Teile mit hoher Verschlüsselung (Getriebe), but poor chemical resistance. |
Anwendungsbranche: Where PA Nylon Injection Molding Excels
PA Nylon’s versatility—from strength to heat resistance—makes it indispensable in five key industries. Im Folgenden finden Sie reale Anwendungsfälle und unsere maßgeschneiderten Lösungen:
Industrie | Common PA Nylon Parts | Unsere Lösungen |
Automobil | Motorteile (Ölpfannen, Ventilabdeckungen), Federungsklammern (PA66-GF30), Türgriffe (Pa6), Kraftstoffleitungen (PA12). | Heat-resistant PA66/PA66-GF30; chemical-resistant coatings; precision molding for tight engine fits. |
Verbraucherprodukte | Werkzeuggriffe (Pa6), Reißverschlüsse (Pa6), luggage wheels (PA6-GF20), appliance components (PA66). | Impact-resistant PA6; textured finishes for grip; cost-effective high-volume production. |
Elektronik | Steckerhäuser (Pa6), Leiterplatte unterstützt (PA66-GF30), Batteriehülsen (flame-retardant PA6). | Flame-retardant additives (meets UL94 V0); Präzisionsform für kleine, intricate parts. |
Industrieteile | Getriebe (PA66-GF30), Lager (PA12), Hydraulische Ausstattung (PA66), Förderbandkomponenten (PA6-GF20). | Wear-resistant grades; glass/carbon fiber fillers for strength; low-friction coatings. |
Medizinprodukte | Chirurgische Werkzeuggriffe (PA12), Katheter (flexible PA12), Gehäuse für diagnostische Geräte (PA66). | FDA-konform, biocompatible PA12; glatte Oberflächen (leicht zu sterilisieren); precision molding for small parts. |
Fallstudien: Our PA Nylon Injection Molding Success Stories
Fallstudie 1: PA66-GF30 Automotive Suspension Brackets (Continued)
- Herausforderung: Ein führender Autohersteller benötigte 200,000 suspension brackets that were lightweight (Verbesserung der Kraftstoffeffizienz), strong enough to withstand 100,000+ km of road stress, und hitzebeständig (to handle engine bay temperatures up to 120°C). Their previous steel brackets added unnecessary weight, increasing fuel consumption.
- Lösung: Wir haben empfohlen PA66-GF30 (30% glass-filled PA66) for its high tensile strength (120 MPA) 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.
- Ergebnisse: The PA66-GF30 brackets were 40% leichter als Stahl (reducing the car’s total weight by 2.5 kg) 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.”
Fallstudie 2: FDA-Compliant PA12 Medical Catheters
- Herausforderung: Ein Unternehmen für medizinische Geräte benötigte 50,000 flexible catheters that were biocompatible (trifft ISO 10993), resistant to bodily fluids (Blut, Kochsalzlösung), and sterilizable via ethylene oxide (Ausrichten). Their previous PP catheters were too rigid and caused patient discomfort.
- Lösung: Wir haben ausgewählt PA12 for its low water absorption (1.5%), Flexibilität (elongation at break: 300%), and FDA compliance. Our process included drying PA12 pellets at 100°C for 6 Std. (Zu <0.05% Feuchtigkeit) and using precision molds with smooth inner surfaces (Um Gewebereizungen zu verhindern). Post-molding, we applied a hydrophilic coating to reduce friction during insertion.
- Ergebnisse: 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 Biokompatibilitätsstandards. The client extended our partnership to produce their entire line of urological catheters.
Fallstudie 3: PA6-GF20 Industrial Gear Assemblies
- Herausforderung: A manufacturer of conveyor systems needed 10,000 gear assemblies that could withstand continuous use (24/7 Betrieb), 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.
- Lösung: Wir haben benutzt 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 MPA -Druck) to ensure full filling of the gears’ teeth. Post-molding, we annealed the gears at 90°C for 2 hours to reduce internal stress.
Ergebnisse: The PA6-GF20 gears lasted 18 Monate (6x longer than ABS) und reduzierte Wartungskosten durch 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, medizinisch, and industrial sectors trust us:
1. Specialized PA Nylon Expertise
We don’t just “do” injection molding—we specialize in PA Nylon. Unsere Ingenieure haben 18+ years of experience optimizing processes for every Nylon grade (Pa6, PA66, PA12, glasgefüllt, recycelt) and solving its unique challenges (Feuchtigkeitsempfindlichkeit, hoher Schrumpfung, viscosity). We’ve developed proprietary drying protocols (Zu <0.1% Feuchtigkeit) 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. Wir halten ISO 9001 (Allgemeine Fertigung) Und ISO 13485 (Herstellung von medizinischen Geräten) Zertifizierungen, mit a 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 (Z.B., 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) Und 24/7 Unterstützung für dringende Anfragen.
- Delivers detailed production reports (Defektraten, Pünktliche Lieferung, material usage) to keep you informed.
4. Innovative Lösungen
Wir investieren 9% unserer jährlichen Einnahmen in 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% recyceltes PA (rPA) Und 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): Wir beziehen 40% of our PA materials from post-industrial waste (Z.B., Nylon scrap from automotive manufacturing) and offer rPA grades that cost 15–20% less than virgin PA.
- Abfallreduzierung: We recycle 98% of production scrap (Blitz, defekte Teile) back into the molding process—sending less than 2% to landfills.
Energieeffizienz: Our injection molding machines use variable-frequency drives (VFDs) and heat recovery systems to reduce energy consumption by 28% vs. standard equipment.