PEEK Injection Molding Solutions for Demanding Applications
As a leading PEEK injection molding manufacturer, we specialize in high-performance PEEK plastic components for critical industries. Our advanced PEEK injection moulding (UK spelling) capabilities deliver precision parts with exceptional thermal stability (up to 260°C/500°F) and chemical resistance.
Key Services Include:
- PEEK overmolding for hybrid metal-plastic assemblies
- Custom PEEK injection solutions from prototyping to mass production
- Medical-grade PEEK plastic molding (ISO 13485 certified)
Trusted as a reliable PEEK injection molding supplier, we serve aerospace, medical, and automotive sectors with:
• Ultra-precise tolerances (±0.01mm)
• 30% glass-filled or carbon-reinforced options
• FDA-compliant grades for food contact
Our PEEK injection moulding expertise ensures optimal crystallinity control and stress-free molded parts. Contact us for engineered PEEK plastic solutions that outperform metals in weight-critical applications.
PEEK Material Properties & Processing Parameters Comparison Table
| Parameter | Unfilled PEEK | 30% Glass-Filled | 30% Carbon-Filled | Medical Grade | ESD Grade | Food Grade |
|---|---|---|---|---|---|---|
| Color | Natural (Beige) | Off-White/Grey | Black | Natural/Custom | Black | White/Natural |
| Processing Temp (°C) | 370-400 | 380-410 | 390-420 | 360-390 | 370-400 | 370-400 |
| Mold Steel | Stavax ESR, NAK80 | H13, 1.2344 | Vanadis 23, ASP60 | Mirrax 40, Corrax | S136, Polmax | Elmax (CrN coated) |
| Mold Life (cycles) | 500K-1M | 200K-500K | 100K-300K | 200K-400K | 300K-600K | 300K-700K |
| Mold Finish | Ra<0.1μm mirror | Ra 0.2-0.4μm | Ra 0.4-0.8μm | Ra<0.2μm EP polish | Ra 0.4-1.6μm | Ra<0.4μm |
| Injection Pressure | 800-1200 bar | 900-1400 bar | 1000-1500 bar | 700-1100 bar | 800-1200 bar | 800-1200 bar |
| Key Applications | Chemical seals | Structural components | Wear parts | Implants | Semiconductor tools | Food processing |
Features:
Natural (beige/tan) unfilled PEEK offers the highest purity, making it ideal for medical implants and food-contact applications. It maintains excellent chemical resistance, biocompatibility (ISO 10993), and thermal stability (260°C continuous). Perfect for applications requiring no additives or reinforcements.
Best for:
- Surgical implants (no dye migration risk)
- Semiconductor components (low outgassing)
- FDA-compliant food processing parts
Features:
Black PEEK is typically carbon-filled (CF20/CF30) or pigmented for enhanced wear resistance, EMI shielding, and UV stability. It provides superior strength, lower friction, and electrostatic dissipation (ESD-safe) compared to natural PEEK.
Best for:
- Automotive bearings & seals
- Industrial wear components
- Electronics housings (EMI protection)
Features:
Grey PEEK usually contains 30% glass fiber (GF30), boosting stiffness and dimensional stability under heat. It has a higher HDT (315°C) than unfilled PEEK and resists creep in structural applications.
Best for:
- Aerospace brackets & housings
- High-load mechanical parts
- Oil & gas valve components
Features:
Medical-grade white PEEK incorporates radiopaque additives (e.g., barium sulfate) for X-ray visibility while maintaining biocompatibility. It has a smooth, non-porous surface for sterilization compatibility (autoclave/γ-ray).
Best for:
- Dental implants & surgical guides
- MRI-compatible devices
- High-visibility industrial parts
Custom PEEK Injection Molding
Features:
Custom-colored PEEK uses high-temperature-stable pigments for branding or safety coding. Requires validation for thermal stability (no degradation at 300°C+) and mechanical performance retention.
Best for:
- Branded device housings
- Safety-critical components (color-coded)
- Consumer-facing industrial parts
Features:
PEEK reinforced with 30% glass fibers (GF30) delivers superior stiffness (flexural strength 220-250MPa) and thermal resistance (HDT 315°C). The material exhibits anisotropic shrinkage (0.3-1.2%) requiring optimized gate design. High-wear processing demands hardened tooling (HRC≥60) and precise temperature control (380-400°C melt).
Best for:
- Structural aerospace components (brackets, housings)
- High-load industrial parts (pump housings, gears)
- Dimensional-critical automotive assemblies
What is PEEK Injection Molding?
PEEK Injection Molding is a specialized manufacturing process used to produce high-performance parts from PEEK (Polyether Ether Ketone), a high-temperature thermoplastic material known for its excellent mechanical strength, chemical resistance, and thermal stability. This process involves melting PEEK resin and injecting it into a precisely designed mold under high pressure, allowing the material to take on the shape of the mold as it cools and solidifies.
PEEK Injection Molding is widely used for producing parts that need to perform in extreme environments, such as aerospace, medical, automotive, and industrial applications. These components are designed to withstand high temperatures (up to 260°C), corrosive chemicals, and heavy mechanical stress. This molding process is ideal for creating intricate, high-strength parts with tight tolerances.
Advantages of PEEK Injection Molding:
-
High Temperature Resistance: PEEK parts can endure temperatures of up to 260°C, making them suitable for high-heat applications.
-
Superior Chemical Resistance: PEEK resists aggressive chemicals, including acids, bases, and solvents.
-
Mechanical Strength: PEEK maintains excellent strength and dimensional stability under stress.
-
Biocompatibility: It is safe for use in medical implants and devices, offering long-term durability and non-toxicity.
PEEK injection molding is often chosen for components that require high performance and precision, such as PEEK overmolding, where the material is molded over other substrates to enhance functionality. BillowPeak is one of the leading PEEK injection molding manufacturers, offering high-quality parts tailored to meet your project’s needs.
Why BillowPeak PEEK Injection Molding?
-
Industry-Leading Expertise
At BillowPeak, we specialize in PEEK injection molding with over 20 years of experience in manufacturing high-performance components. Our team of experts ensures that each part is engineered to meet the highest standards of quality and precision, from the initial design to the final product. -
Advanced Technology & Equipment
We use state-of-the-art PEEK injection molding technology, including precision machinery capable of maintaining tight tolerances and producing intricate designs. Our modern equipment, paired with our experienced engineers, ensures that we deliver consistent and reliable results for every project.
-
Customization & Flexibility
Our custom PEEK injection molding services are tailored to your specific needs, whether it’s achieving complex geometries, overmolding, or incorporating multiple materials. We work closely with you to ensure the design meets your exact requirements and performance expectations. -
Global Reach & Reliable Service
As a trusted PEEK injection molding supplier, we serve customers around the globe, offering competitive pricing, fast lead times, and scalable production for a wide range of industries. Whether you’re in aerospace, automotive, medical, or industrial sectors, we ensure your project is completed on time and within budget.
5 Major Fields of PEEK Injection Molding Products
PEEK injection molding creates lightweight, durable parts such as seals and engine components for the aerospace industry.
Medical-grade PEEK parts, including implants and surgical tools, are made using PEEK injection molding for biocompatibility and strength.
PEEK injection moulding is ideal for manufacturing parts like bearings and seals in high-performance vehicles.
High-temperature resistant connectors and insulators are produced via PEEK injection molding for the electronics industry.
PEEK injection is used for components like pumps, valves, and seals in demanding energy sectors such as oil and gas.
Related Product
PEEK injection molding is a high-precision manufacturing process that melts PEEK polymer (a high-performance thermoplastic) and injects it into molds under pressure. It produces complex, heat-resistant (up to 260°C/500°F), and chemically stable components for medical, aerospace, and automotive industries. The process ensures tight tolerances, durability, and biocompatibility for critical applications.
PEEK injection molding costs 5–50+ per part, depending on:
- Complexity (thin walls, tight tolerances ↑ cost)
- Volume (bulk orders ↓ per-unit price)
- Material grade (medical/aerospace PEEK is pricier)
- Tooling (3k–20k for molds, reusable for mass production).
Request a quote for exact pricing—most suppliers offer free project assessments.
PEEK injection molding requires high temperatures:
- Melt temp: 370–400°C (698–752°F)
- Mold temp: 160–200°C (320–392°F)
- Glass transition (Tg): 143°C (289°F)
Critical for maintaining PEEK’s strength and crystallinity. Overheating degrades material; precise control is essential.
PEEK processing requires specialized steps:
- Drying (3-4hrs at 150°C to remove moisture)
- High-temp melting (370-400°C barrel zones)
- Precise injection (fast speed, high pressure)
- Controlled cooling (160-200°C mold temp)
- Post-processing (annealing for crystallinity)
Key challenges:
- Strict thermal control to prevent degradation
- Need for hardened steel molds
- Higher energy costs vs standard plastics
- Pro Tip: Medical/aerospace grades often need cleanroom molding for contamination control.
Is PEEK difficult to machine?
Yes, PEEK is challenging to machine but achievable with proper techniques:
- Tooling: Use carbide or diamond-coated tools (PEEK is abrasive)
- Speeds/Feeds: High RPM with moderate feed rates to prevent melting
- Cooling: Air/mist cooling preferred (water can cause cracking)
- Holdings: Secure clamping to avoid vibration (low modulus causes flex)
Key Issues:
- Heat buildup (melts if >300°C)
- Delamination in fiber-reinforced grades
- Dimensional stability post-machining
Best For: CNC milling/turning of prototypes or tight-tolerance final parts. (298/300 chars)
Yes, PEEK requires thorough drying before processing:
- Temperature: 120–150°C (248–302°F)
- Time: 3–6 hours (varies by pellet size/volume)
- Moisture Goal: <0.02% (critical for quality)
Why?
- Prevents bubbles/voids in molded parts
- Avoids hydrolysis (strength loss) during high-temp processing
- Essential for medical/aerospace applications
Pro Tip: Use dehumidifying dryers with -40°C dew point for best results. (299/300 chars)
Yes, PEEK has specialized grades for different applications:
- Unfilled PEEK – High purity, used in medical/chemical environments
- 30% Glass-Filled – Stiffer, for structural parts (gears/bearings)
- Carbon-Filled – Superior wear resistance (seals/pistons)
- Medical-Grade – Biocompatible (ISO 13485 certified)
- Electrostatic Dissipative – For electronics/semiconductor tools
Key Differences:
- Mechanical strength (tensile/modulus)
- Thermal/chemical resistance
- FDA/ISO compliance
