JUNHUA

Applications of PEEK in New Energy Industry

JUNHUA® PEEK offers high-reliability insulation and sealing solutions for electric drive, battery, and hydrogen fuel cell applications, meeting demanding requirements such as high voltage, high temperature, chemical resistance, and low permeation.

Performance Advantages

Corona Resistance / High PDIV

Excellent dielectric strength and partial discharge inception voltage, suitable for 800V+ platform electric drive systems.

Good Adhesion to Metals

Facilitates co-extrusion with copper conductors and metal frames, ensuring stable interfaces.

Chemical Corrosion Resistance

Resists hydrogen media, coolants, insulating oils, and various corrosive media.

High/Low Temperature Resistance

Continuous use temperature up to ~260°C, maintains toughness and strength down to -100°C.

Low Moisture Absorption / Low Permeation

Maintains dimensional and structural stability under harsh conditions over long periods.

High Strength / Wear Resistance

Creep-resistant, compression-resistant, bend-resistant without cracking, suitable for dynamic sealing support components.

Products

Modified PEEK sealing gasket

Modified PEEK sealing gasket

Hydrogen energy is the largest clean energy in the 21st century. It has huge demand and huge space. It is...
PEEK Polymer wind turbine friction plate

PEEK Polymer wind turbine friction plate

  Product specifications (mm) F 110/10 F 108/8 F 100/10 F 100/8 F 80/10 F 80/7 Modified PEEK and PPS...
PEEK end sliding bearing

PEEK end sliding bearing

PEEK end sliding bearing   Detailed description High temperature resistance, corrosion resistance, self-lubrication, wear resistance, high strength and high precision....
PEEK wear-resistant blades

PEEK wear-resistant blades

PEEK wear-resistant blades   Detailed description High temperature resistance, corrosion resistance, self-lubrication, wear resistance, high strength and high precision.  ...
PPS water pump impeller

PPS water pump impeller

PPS Water Pump Impeller: Engineered with Advanced PEEK Polymer Our PPS water pump impeller is precision-machined from high-performance PEEK material,...
PEEK rotor

PEEK rotor

Introducing the PEEK Rotor: Unmatched Performance for Demanding Applications Engineered from high-performance PEEK polymer, our PEEK rotor is the ultimate...

New Energy Segments & Pain Points → Solution Matrix

Electric Drive System (E-Motor / Motor & Transmission)

High Voltage/High Speed/Oil Cooling

Pain Points

  • PD and breakdown risks due to high voltage and small gaps
  • Chemical compatibility and thermal aging with oil cooling/ATF
  • Wear and noise control at high speeds

Solutions

  • Slot liners/end insulation (PEEK slot insulation, gaskets, coil bobbins)
  • PEEK flat wire coating/sleeves, improving PDIV and dielectric life
  • PEEK insert gears, bushings, thrust wear-resistant blocks and other lightweight wear-resistant components
Expected Benefits: Enhanced corona resistance and breakdown margin, reduced noise and wear, improved system reliability and lifespan.

Battery and Energy Storage (Periphery Insulation/Sealing/Fluids)

High Energy Density/Safety

Pain Points

  • Dimensional and sealing degradation due to thermal cycling and chemical media
  • Leakage risks and maintenance costs in fluid systems
  • Compression creep resistance in complex assembly scenarios

Solutions

  • High-temperature insulation sleeves, monofilament sleeves, PEEK filter cloth/filters
  • Piping connectors and support rings with long-term dimensional stability
  • Electrolyzer bipolar plate gaskets, anti-compression creep and chemical resistant
Expected Benefits: Reduced leakage and maintenance costs, improved sealing lifespan and assembly pass rate.

Hydrogen Fuel Cell (PEMFC/Humidifier/Valves)

Low Permeation/Corrosion Resistance

Pain Points

  • Hydrogen permeation and durability under H₂S/condensation conditions
  • Sealing persistence and dimensional stability
  • Wear resistance, corrosion resistance, and reliability of humidifiers/valves

Solutions

  • Insulation pads, stack end plates/connectors/branches, hydrogen valve housings
  • PEEK proton exchange membrane reinforcement fabric, humidifier components
  • Valve cores/stems/plates and filters with low wear and low permeation
Expected Benefits: Maintain mechanical and sealing performance in complex media, improve stack reliability and lifespan.

Industry Certifications and Production Capacity Assurance

Quality Advantages

  • Established strict IATF16949 quality assurance system with continuous improvement;
  • Strict inspection: no substandard raw materials into production, no substandard semi-finished products to next process, no substandard finished products leave factory;
  • Professional and efficient R&D technical team: providing technical support to customers, comprehensively safeguarding customer interests;
  • Authoritative third-party certifications: FDA food-grade certification, SGS quality system certification, ROHS testing, etc.;
  • Advanced testing equipment: ultrasonic testing equipment, electronic mechanical testing machine with high/low temperature function, friction and wear testing machine, high-temperature melt indexer, coordinate measuring machine, X-ray foreign body detector, etc.;
  • Complete after-sales service system: tracking service for product quality, performance, and post-use customer satisfaction.

Technical Advantages

  • 18+ years of PEEK application R&D and production experience;
  • 40 high-performance special engineering plastic profile continuous extrusion dedicated production lines;
  • National High-tech Enterprise certification in 2015, recognized as National Specialized, Refined, Unique, and Innovative "Giant" Enterprise in 2022.
  • Established "PEEK Profiles and Products Enterprise Standard".
  • Wujin District Engineering Technology Research Center established in 2014, Jiangsu Province (Junhua) High-performance Special Engineering Plastic Engineering Technology Research Center built in 2022;
  • Continuous technological innovation, accumulating proprietary technologies: 12 innovations, 27 utility models;
  • Long-term technical exchanges and cooperation with professional institutions;
  • Efficient R&D technical team, continuously conducting PEEK application R&D.

Production Advantages

  • Possesses complete industrial chain R&D and production capabilities from PEEK resin polymerization and modification compounding, plate/rod/profile continuous extrusion molding to finished parts injection molding and machining;
  • Diverse product types and specifications, with long-term inventory;
  • Proprietary production and testing equipment: 40 profile extrusion production lines, four-axis/five-axis CNC machining, turning-milling compound machining, coordinate measuring machines, X-ray foreign body detectors, mechanical testing machines, infrared spectrometers, thermogravimetric analyzers, differential scanning calorimeters;
  • The company currently has 4 subsidiaries: Shandong Junhao, Changzhou Junhua Medical, Changzhou Junhang, and JunDe HPP GmbH, with 8 business units including profile extrusion, analytical instruments, aerospace, gears and sealing transmission, electronics semiconductors, oil and petrochemicals, supported by 13 affiliated workshops working together for development.
  • Complete hardware facilities: 16,000 square meters of standardized office and production facilities, 300 square meters of corporate product showroom.

Service

JunHua HPP offers one-stop PEEK solutions from design to after-sales, ensuring quality, innovation, and customer satisfaction.

1

Design and processing

Junhua offers injection molding, machining, and extrusion solutions to optimize design and cost.

2

Material selection

Junhua specializes in PEEK with multiple grades and recommends the best engineering plastics for your needs.

3

Measurement

Junhua uses high-precision instruments to provide customers with accurate drawings.

4

Sampling

Junhua supplies samples for testing and refines designs until approval for mass production.

5

Mass Production

Junhua controls raw materials, processes, and inspections to ensure consistent product quality.

6

Quality Control

Junhua follows ISO9001 standards and provides full inspection reports as required.

7

Improve

Junhua continuously optimizes designs and processes through improvement systems and case experience.

8

After-sales Service

Junhua offers complete after-sales support to resolve technical issues and protect customer interests.

Contact Us

Contact Us Now and Enjoy a One-Stop Solution!Fill the Form to Get a Quote, Product Manual, Performance Parameters, Custom Solutions, Technical Consultation, and Samples

Certificate

Junhua ensures that its products meet the highest global standards through a rigorous quality management system. The following are our main international certifications
REACH
AS9100D
ISO 13485
IATF 16949
ISO 9001
RoHS
FDA
REACH
AS9100D
ISO 13485
IATF 16949
ISO 9001
RoHS
FDA

About Us

Junhua was founded in 2007 and specializes in the development, production, and sale of high-performance engineering plastics, particularly PEEK, PI, PPSU, and other special polymers. The company has a modern factory occupying 15,000+ square meters , with 40+ extrusion lines ,Complete injection molding and CNC processing equipment, with an annual production capacity of over.

We have obtained multiple international certifications such as AS9100D (Aerospace), ISO9001, IATF1649 (Automotive), ISO13485 (Medical Devices), FDA, RoHS, REACH, SGS , and our products are fully traceable . Our customers cover multiple high-threshold industries in over 60 countries and regions , including aerospace, medical, semiconductor, electronics, food, and new energy vehicles. We are committed to becoming a global leader in PEEK solutions.

12 Patents for Invention

27 Utility Model Patents

15,000+㎡ Factory

40+ Extrusion Lines + Cleanroom

60+ Countries

30000+ Global Customers | 3 Billion+ Sales

500+ Team Members

18+ Years of Experience | 40+ Global Employees

Multiple International Certifications

AS9100D / ISO13485 / IATF16949 etc.

1000+ Global Partners

Serve 60+ Countries

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Contact Us

Contact Us Now and Enjoy a One-Stop Solution!Fill the Form to Get a Quote, Product Manual, Performance Parameters, Custom Solutions, Technical Consultation, and Samples

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