For any questions about our services you can call us at: +86-188-7042-1176
High-Performance & Specialty Injection Molding Materials
High-performance plastics, often referred to as "super-polymers," represent the pinnacle of thermoplastic technology. Materials like PEEK, PPS, and Specialty PE (UHMV) offer extraordinary mechanical strength, thermal stability, and chemical resistance that standard engineering plastics cannot match. They are frequently used to replace machined metal components, offering weight reduction without sacrificing performance. At JUCHENG, we have the specialized equipment and expertise required to mold these challenging materials. From high-temperature oil-heated molds to wear-resistant screw assemblies, our facility is optimized to deliver precision parts for the most demanding aerospace, medical, and automotive applications.
High-Performance & Specialty Injection Molding Materials

JUCHENG's High-Performance Molding Capabilities

Processing super-polymers requires conditions far beyond standard molding. JUCHENG delivers:
  • High-Temperature Tooling: Materials like PEEK and PPS require mold temperatures above 140°C to crystallize correctly. We utilize high-performance oil thermolators to maintain precise thermal control.
  • Wear-Resistant Components: These materials are often filled with glass or carbon fibers, which are highly abrasive. We use specialized bimetallic screws and barrels to prevent wear and contamination.
  • Precision Process Control: We employ scientific molding principles to manage the narrow processing windows of high-performance resins, ensuring void-free parts with optimal mechanical properties.
  • Post-Molding Annealing: We offer in-house annealing (heat treatment) services to relieve internal stresses and maximize the crystallinity and dimensional stability of PEEK and PPS parts.
injection molded PEEK part

Detailed Material Profiles

We process the most advanced thermoplastics available in the market:
1、PEEK (Polyetheretherketone)
  • Description: An organic semi-crystalline thermoplastic with exceptional mechanical and chemical resistance. It is often considered the highest-performing moldable plastic.
  • Key Advantages: Continuous service temperature up to 260°C, excellent biocompatibility (medical grade), inherent flame retardancy, and high strength-to-weight ratio.
  • Ideal Applications: Aerospace brackets, medical implants (long-term), semiconductor wafer carriers, compressor valves, high-speed bearings.
2、PPS (Polyphenylene Sulfide)
  • Description: A semi-crystalline material known for its metal-like sound when struck ("metallic ring"). It offers the broadest resistance to chemicals of any high-performance plastic.
  • Key Advantages: Exceptional dimensional stability (very low creep), impervious to almost all solvents below 200°C, high rigidity, and excellent electrical insulation.
  • Ideal Applications: Automotive fuel system parts, pump impellers, electrical sockets, heater housings, flow sensors.
3、UHMV (Ultra-High Molecular Weight PE)
  • Description: Note: Standard UHMV is difficult to injection mold due to high viscosity. We process modified Injection-Grade UHMV or High-Performance PE. It is known for extreme toughness.
  • Key Advantages: Highest impact strength of any thermoplastic, extremely low coefficient of friction (self-lubricating), and outstanding abrasion resistance (better than steel).
  • Ideal Applications: Conveyor belt guides, heavy-duty wear strips, chute liners, noise-dampening gears, industrial wheels.

Design Guidelines for High-Performance Plastics

  • Gating: PEEK and PPS solidify instantly. We use large gates to ensure proper packing and minimize voids.
  • Corner Radii: Essential. High-stiffness materials like Carbon-Filled PEEK are notch-sensitive. Generous radii reduce stress concentrations.
  • Wall Thickness: Keep walls uniform. Thick sections in PEEK can be very expensive due to material cost; we recommend coring out designs to save weight and money.
  • Draft Angles: Minimum 1° is recommended. High-performance materials can shrink tightly onto the core.

Comprehensive Comparison Table

Physical properties comparison of Super-Polymers:
Property PEEK (Unfilled) PPS (40% Glass Filled) UHMV (Injection Grade) Unit
Structure Semi-Crystalline Semi-Crystalline Semi-Crystalline -
Density 1.30 - 1.32 1.60 - 1.70 0.93 - 0.95 g/cm³
Tensile Strength 90 - 100 150 - 170 20 - 40 MPa
Flexural Modulus 3,700 14,000 800 - 1,200 MPa
Heat Deflection (1.8 MPa) 150 - 160 > 260 60 - 80 °C
Max Continuous Temp 260 220 80 °C
Chemical Resistance Excellent Ultimate Excellent -
Material Cost Very High High Medium -
 

FAQ: High-Performance Plastics

  • Q: Why is PEEK tooling expensive?
A: PEEK requires molds made from high-grade hardened steel (like H13 or S136) to withstand high operating temperatures and abrasion, increasing tooling costs.
  • Q: Can PPS be transparent?
A: No, PPS is naturally opaque (usually dark brown or black) due to its crystalline structure.
  • Q: Is UHMV suitable for high heat?
A: No, UHMV excels in wear resistance but has a relatively low melting point compared to PEEK or PPS.
Jucheng Precision Factory
Request Your DFM & Quote – Upload Your Drawings
ㆍFill in your requirements and upload your 2D&3D file, we will feedback your project quotation and DFM within 24 hours.
ㆍFile types: STEP, STP, IGES, IGS, SLDPRT, 3DM, SAT or X_T files File size: < 128 MB Part size: < 1500*1500*1500 mm
ㆍPrivacy: We respect your privacy. Here you can find an example of a non-disclosure agreement. By submitting this form, you agree to our terms & conditions and privacy policy.
Choose File
    Get A Quote And Solution
    Factory Address :
    Shenzhen: Fourth Industrial Zone, Xisha Road, Shajing Street, Baoan District, Shenzhen.
    Dongguan: Building 5 and 4, No. 198, Chang'an Section, Guanchang Road, Chang'an Town, Dongguan.
     
    Sales Office: 
    unit 1, Enterprise City,Durham DL16 6JF, united Kindom
     
     
    +86 - 186 - 8005 - 3076
    project@juchengjm.com
    (Can't open by clicking? Please copy the email address above and email us.)

    Capabilities

    CNC Machining
     
     
    Jucheng Precision ISO 9001, ISO 14001, ISO 13485, IATF 16949

    Resources

    Technical FAQ

    Company

    About Us
    Copyright © 2023 Jucheng Precision All rights reserved.