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PEI Injection Molding

PEI Injection Molding

High-Performance Engineering Plastics

Rapidaccu delivers exceptional PEI (Polyetherimide) injection molding services from our state-of-the-art Shenzhen facility. With 15 years of expertise in high-performance engineering plastics, we manufacture critical components for the most demanding applications worldwide.

15 Years

Expert Experience

200°C+

Heat Resistance

UL94 V-0

Flame Rating

±0.01mm

Precision Level

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PEI Material Superiority

Unmatched performance for critical applications

Extreme Heat Resistance

Continuous service temperature up to 200°C with exceptional thermal stability and dimensional integrity under sustained heat exposure.

Superior Mechanical Strength

Excellent tensile strength, stiffness, and creep resistance maintaining structural integrity under mechanical stress and elevated temperatures.

Electrical Insulation

Outstanding dielectric properties with low moisture absorption ideal for electrical and electronic component applications requiring reliability.

Advanced PEI Processing Expertise

Rapidaccu operates from Rongli Industrial Park, Dalang, Longhua District, Shenzhen, China, with specialized equipment for high-performance polymers. Our 15 years of experience in engineering plastics ensures precision processing of demanding PEI materials.

Precision Temperature Control

Multi-zone heating systems maintain optimal processing temperatures (340-425°C) ensuring consistent melt flow and part quality.

Advanced Drying Systems

Dedicated dehumidifying dryers reduce moisture below 0.02% preventing hydrolytic degradation during processing.

Quality Verification

Comprehensive testing protocols including dimensional inspection, mechanical testing, and thermal analysis verification.

100-800T

Machine Capacity

20-3000g

Shot Weight

ISO 9001

Certified

24/7

Production

PEI Injection Molding Process

Material Drying

Pre-dry PEI at 150°C for 4-6 hours to remove moisture

Melt Preparation

Heat to 340-425°C with precise zone control

High-Pressure Injection

Inject under controlled pressure into heated mold

Controlled Cooling

Optimize cooling rate for stress minimization

Quality Testing

Comprehensive inspection and certification

Critical Applications of PEI

High-performance components for demanding industries

Aerospace

Aircraft interior components, ducting systems, electrical connectors meeting stringent FAA flame and smoke requirements.

Medical Devices

Surgical instruments, sterilization trays, dental tools requiring repeated steam autoclave sterilization cycles.

Electronics

IC test sockets, semiconductor handling equipment, fiber optic connectors demanding thermal and electrical stability.

Automotive

Under-hood components, transmission parts, sensor housings requiring high heat resistance and dimensional stability.

Technical Properties of PEI

Thermal Properties

Glass Transition Temp 217°C

Max Service Temp 200°C

Melt Temperature 340-425°C

Flame Rating UL94 V-0

Mechanical Properties

Tensile Strength 105 MPa

Flexural Modulus 3300 MPa

Impact Strength 53 J/m

Elongation 60%

Electrical Properties

Dielectric Strength 28 kV/mm

Dielectric Constant 3.15

Volume Resistivity 10¹⁷ Ω·cm

Water Absorption 0.25%

Rapidaccu PEI Manufacturing Advantages

15 Years Expertise

Specialized experience in high-performance engineering plastics processing for critical applications globally.

Advanced Equipment

Specialized injection molding machines with high-temperature capabilities and precision control systems.

Quality Systems

ISO 9001 certified processes with comprehensive testing and documentation for aerospace and medical compliance.

Global Export

Proven track record serving international clients with reliable quality and comprehensive technical support.

Frequently Asked Questions

What makes PEI suitable for high-temperature applications?

PEI offers exceptional thermal stability with a glass transition temperature of 217°C and continuous service temperature up to 200°C. It maintains mechanical properties and dimensional stability under sustained heat exposure, making it ideal for aerospace, automotive, and industrial applications.

Does PEI require special processing conditions?

Yes, PEI requires careful processing. Material must be dried at 150°C for 4-6 hours to below 0.02% moisture. Processing temperatures range from 340-425°C with heated molds (150-180°C). Our facility has specialized equipment and expertise for optimal PEI processing.

Can PEI parts be sterilized for medical use?

Absolutely. PEI withstands repeated steam sterilization cycles at 134°C without degradation. It’s biocompatible and approved for medical device applications including surgical instruments, sterilization trays, and dental equipment requiring autoclave sterilization.

What tolerances can be achieved with PEI molding?

We achieve tolerances of ±0.01mm for critical dimensions using precision molds and controlled processing. PEI has low shrinkage (0.5-0.7%) and excellent dimensional stability, making it suitable for tight-tolerance precision components.

Is PEI inherently flame retardant?

Yes, PEI is inherently flame retardant without additives, achieving UL94 V-0 rating. It has low smoke generation and non-toxic combustion products, meeting stringent aerospace FAA regulations for aircraft interior components.

What is the typical lead time for PEI parts?

Lead time depends on part complexity, tooling requirements, and order quantity. As a China-based manufacturer serving global markets, we provide realistic timelines considering both production and international logistics requirements.