PEEK Injection Molding Service

Custom PEEK Injection Molding Service

NOBLE’s Custom Injection Molding Service provides precision manufacturing of high-performance PEEK parts tailored to your needs. Using advanced injection molding technology and expertise in polymer processing, we deliver reliable, cost-effective parts quickly, reducing cycle times by up to 50%. Get quotes in minutes, parts in days!

Our PEEK Injection Molding Capabilities

With decades of injection molding experience, NOBLE’s expert team offers personalized support from design to production. Using premium PEEK materials, we provide complete solutions, including prototyping, mold design, and production, ensuring quality, efficiency, and timely delivery for every project.

Price	$$$
Lead Time	< 5 days
Wall Thickness	0.047 in. – 0.140 in
Tolerances	+/- 0.003 in. (0.08mm) with an included resin tolerance that can be greater than but no less than +/- 0.002 in./in. (0.002mm/mm)
Max Part Size	18.9 in. x 29.6 in. x 8 in. (480mm x 751mm x 203mm)
Available PEEK at NOBLE	Unreinforced PEEK, Glass-Filled PEEK, Carbon-Filled PEEK, PEEK with Ceramic Fillers, PEEK with Carbon Fiber Reinforcement

Characteristics of PEEK Injection Molding Materials

PEEK offers exceptional strength, thermal stability, and chemical resistance, performing well at temperatures up to 250°C. Using advanced injection molding techniques, NOBLE produces precision parts with tight tolerances, low friction, and electrical insulation, ensuring reliability for aerospace, automotive, and medical applications.

Features	Info
Subtypes	Unreinforced PEEK, Glass-Filled PEEK, Carbon-Filled PEEK, PEEK with Ceramic Fillers, PEEK with Carbon Fiber Reinforcement…
Process	CNC Milling, CNC Turning, Injection Molding
Tolerance	+/- 0.003 in. (0.08mm) with an included resin tolerance that can be greater than but no less than +/- 0.002 in./in. (0.002mm/mm)
Applications	Aerospace Parts, Medical Devices, Automotive Parts, Electronics, Chemical Processing, Semiconductors
Finishing Options	Polishing, Sand Blasting, Laser Carving, Sand Blasting, Chemical Polishing…

Pros and Cons of PEEK for Injection Molding

PEEK’s strength, thermal stability, chemical resistance, and low friction make it ideal for precision parts in aerospace, automotive, and medical industries. Despite its high cost and molding complexity, advanced injection molding techniques ensure tight tolerances, optimal finishes, and efficient production, minimizing mold wear and material waste.

High Strength and Durability

PEEK maintains high mechanical strength, even at elevated temperatures, making it ideal for injection molding parts that require long-lasting durability in high-stress environments. Injection molding techniques can achieve tight tolerances, ensuring that PEEK parts remain robust and reliable.

Thermal Stability

PEEK’s ability to withstand temperatures up to 250°C allows injection molding specialists to create parts for high-temperature applications without worrying about material degradation. Injection molding machines can be set with optimal mold temperatures and cooling systems to maintain PEEK’s thermal properties during production.

Chemical Resistance

PEEK’s excellent chemical resistance makes it ideal for injection molding parts used in harsh environments. Injection molding can accurately shape PEEK into components for chemical processing, medical, and automotive applications, ensuring that the final parts resist corrosion and chemical attack.

Low Friction

PEEK’s low friction properties reduce wear on injection molded components like bearings, seals, and bushings. By utilizing injection molding with precise mold designs and process controls, these low-friction parts can be produced with tight tolerances to ensure long-term functionality in moving applications.

Electrical Insulation

Injection molding can shape PEEK into parts for electrical and electronic applications, requiring high dielectric strength and electrical insulation. The precision of the injection molding process ensures that parts like connectors or housings perform reliably in electrical systems while maintaining PEEK’s insulating properties.

Cost

PEEK is a premium material, and its cost can make large-scale injection molding projects expensive. This is especially true when dealing with high-volume production. The molding process must be carefully planned to balance material cost with molding efficiency to justify its use.

Molding Complexity

PEEK’s toughness presents challenges during injection molding. Its hardness and resistance to flow make it more difficult to mold compared to softer materials. Special mold designs, injection speeds, and cooling strategies must be employed to ensure clean parts without compromising material properties to avoid overheating.

Brittleness

Although strong, PEEK can be brittle, especially in thin sections. Injection molding of thin-walled PEEK parts requires careful programming to avoid stresses that could lead to cracking. Techniques such as low injection speeds and controlled cooling rates are used to prevent excessive forces during the molding process that might damage the part.

Wear on Molds

PEEK, especially when reinforced with carbon or glass fibers, can wear down injection molds faster than other materials. To address this, specialized wear-resistant mold materials and coatings are used, and frequent mold maintenance or replacement may be required to maintain the precision and quality of the injection molding process.

Types of PEEK Injection Molding Materials

PEEK plastics offer excellent versatility, with properties that can be customized to suit various applications. You can choose the ideal material based on specific environmental conditions and performance requirements, ensuring optimal functionality for diverse applications.

Unreinforced PEEK

A versatile, high-strength material suitable for moderate temperatures and low-load applications, offering good flexibility and chemical resistance.

Tensile Modulus: 3,600–4,000 MPa

Tensile Strain (Yield): 20–40%

Rockwell Hardness: R120–R130

Heat Deflection Temperature: 320–340°F

Glass-Filled PEEK

Provides enhanced stiffness and thermal stability, ideal for structural components requiring high strength and heat resistance.

Tensile Modulus: 7,200–8,000 MPa

Tensile Strain (Yield): 8–15%

Rockwell Hardness: R130–R140

Heat Deflection Temperature: 380–400°F

Carbon-Filled PEEK

Offers superior strength, wear resistance, and high-temperature stability, making it ideal for high-load, high-stress applications.

Tensile Modulus: 8,000–9,000 MPa

Tensile Strain (Yield): 5–12%

Rockwell Hardness: R140–R150

Heat Deflection Temperature: 400–420°F

PEEK with Ceramic Fillers

Combines excellent wear resistance and thermal stability, ideal for components exposed to friction and high temperatures.

Tensile Modulus: 7,000–8,500 MPa

Tensile Strain (Yield): 6–10%

Rockwell Hardness: R140–R160

Heat Deflection Temperature: 390–410°F

PEEK with Carbon Fiber Reinforcement

Delivers exceptional stiffness, strength, and heat resistance, ideal for demanding aerospace, automotive, and industrial applications.

Tensile Modulus: 10,000–12,000 MPa

Tensile Strain (Yield): 3–8%

Rockwell Hardness: R150–R160

Heat Deflection Temperature: 430–450°F

Surface Finishing Options for PEEK Injection Molding

The right surface finish for PEEK improves aesthetics and adds a layer of protection against corrosion and wear. NOBLE offers comprehensive surface finishing services that enhance your PEEK injection molded parts’ functionality, appearance, and durability.

Polishing

Working on metal and hard plastics, our polishing uses highly efficient machinery to get our parts between Ra 0.8~Ra0.1 for a cleaner surface.

Band Blasting

Band blasting cleans the surface of any impurities and peels coating through the propelling of blast media streams over the parts.

Laser Carving

Helpful in brand recognition or parts organization, we use laser carving that applies various printing methods during full-scale production to quickly embed barcodes, lettering and logos on the parts.

Chemical Polishing

Utilizes chemical reagents to selectively dissolve uneven areas on the surface of a sample, thereby eliminating grinding marks and achieving an etching and flattening effect.

Custom PEEK Injection Molding Parts Display

Check out our over a decade of custom PEEK injection molding, including precision PEEK prototypes and parts from our valued customers.

Applications of PEEK Injection Molding

Injection molding of PEEK is essential for industries demanding high-performance materials with superior thermal stability, chemical resistance, and mechanical strength. Leveraging advanced equipment and expertise, we deliver reliable, cost-effective solutions for aerospace, medical, automotive, and electronics sectors, ensuring optimal performance in demanding applications.

If you are looking for a rapid prototyping manufacturer or a CNC machine shop to fabricate small, medium-volume, or mass-production products, NOBLE is an ideal choice.Our well-trained and experienced staff manufactures parts in line with drawings on modern CNC machines, with the highest accuracy and processing quality in all sizes.In addition, we provide professional design considerations for your CNC machining projects.

Want to get the most professional and fastest service for your CNC machining project? Upload your CAD files now and obtain a quote!