PEEK Injection Molding Supplier In China

Maximize Your Savings with a Trusted PEEK Injection Mold Partner

PEEK Injection Molding Manufacturer

Stebro Mold is your ultimate destination for high-quality PEEK injection molding services. With a commitment to excellence and precision, we utilize the potential of PEEK – an extraordinary, high-performance thermoplastic – to craft durable, robust components that reflect your unique needs.

As a trusted partner in sectors like medical, aerospace, and automotive, we’re here to offer precision-driven solutions, empowering you to elevate your products while meeting rigorous industry-specific standards.

Our services include:

2D & 3D product design and optimization
The material selection
Rapid prototyping services
Cost-effective mold solution
Mold Flow Analysis to optimize the mold design
In-house tooling manufacturing, tooling transfer, mold change, and maintenance
PEEK injection mold trial
Low Volume Injection Mold production runs and mass production
Part Assembly

By choosing Stebro Mold for your PEEK injection molding needs, you’re partnering with a dedicated team that assures flawless execution, timely delivery, and adherence to YOUR budget. Equipped with state-of-the-art technology and extensive PEEK injection mold expertise, we’re set to drive superior results for YOUR projects.

Embrace the benefits of our top-tier peek injection molding services today. Reach out to us to discuss YOUR project requirements and receive a detailed quote tailored to YOU.

Why Stebro Mold

Free Plastic Part Design Assistance
Mold design optimize with Moldflow to improve the surface and reduce cost
In-house Mold Manufacturing
Life Guarantee, Free Maintenance
Affordable Price, No Hidden Charges
Quality Control In Manufacturing, Consistent Quality
On Time Delivery
24-Hour Quote Responses With DFM Feedback
Engel Injection Molding Machine

Customer Letters

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Amanda Lee

CEO & Founder Crix

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Catherine Gilbert

Director at Initech

peek resin manufacturers

Polyether Ether Ketone is a semi-crystalline polymer belonging to the polyaryletherketone family. There are several Polyether Ether Ketone polymer brands and manufacturers available in the market as below:

Polyether Ether Ketone plastic injection molding application

Polyether Ether Ketone is a high-performance polymer. It is widely used in cost effective processes due to its excellent mechanical, thermal, and chemical resistance properties. PEEK offers a unique combination of characteristics, making it an ideal choice for various applications in industries:

Aerospace:

Lightweight structural components, such as gears, bearings, and seals
Electrical connectors and cable insulation for aircraft wiring systems

Automotive:

High-performance parts, including pistons, seals, and valve components
Electric vehicle (EV) battery components and housings

Medical:

Implants, such as spinal fusion devices and joint replacement components
Surgical instruments, like forceps and endoscopic devices
Medical device housings and enclosures

Oil and Gas:

Downhole tools and components, like seals, gaskets, and valve parts
Compressor and pump components

Electronics:

Insulation for high-temperature electronics, such as circuit boards and connectors
Semiconductor manufacturing equipment components

Advantages

High-temperature resistance: With a continuous service temperature of 250°C and a melting point of around 343°C
Chemical resistance: It is resistant to a wide range of chemicals, including acids, bases, and organic solvents.
Mechanical strength: It has high tensile and flexural strength.
Electrical properties: It exhibits excellent electrical insulation and low dielectric constant over a wide frequency range.
Biocompatibility: It is biocompatible and can be sterilized.
Wear and abrasion resistance
Lower energy consumption

Cost

There are lots of PEEK injection molding manufacturers in China. The cost from different peek injection molding suppliers is different. The price mainly depends on material cost, mold manufacturing, cycle times, production volume, and secondary operations. If you want to get the accurate PEEK plastic parts price, you can contact the PEEK injection molding factory in China.

Tolerances

Tight tolerances with PEEK injection molding requires a combination of proper part geometry, mold design, precise tooling, and optimal processing conditions. We have to consider shrinkage, warpage, and cooling rates to ensure the desired tolerances are maintained throughout the production. In some cases, secondary operations, such as CNC machining or surface finishing, may be required to achieve tighter tolerances if necessary.

injection molded peek properties

High-temperature resistance: With a continuous service temperature of 250°C and a melting point of around 343°C
Chemical resistance: It is resistant to a wide range of chemicals, including acids, bases, and organic solvents.
Mechanical strength: It has high tensile and flexural strength.
Electrical properties: It exhibits excellent electrical insulation and low dielectric constant over a wide frequency range.
Biocompatibility: It is biocompatible and can be sterilized.

Guide

Part Design

Plastic Material Selection: Choose the appropriate Polyether Ether Ketone grade based on the application requirements.
Wall Thickness: Maintain consistent wall thickness in the part for even cooling, reduced warping, and accurate dimensions. For PEEK injection molded parts, suggested wall thickness is 1 mm for small parts and 4 mm for bigger parts.
Draft Angles: Add 1 to 3 degrees draft angles to simplify part extraction from the mold. It also can reduce the risk of part damage or mold wear.
Ribs and gussets: Use ribs and gussets to reinforce part structure and maintain strength without increasing wall thickness. Ensure ribs are no thicker than 60-70% of the nominal wall thickness to minimize sink marks and internal stresses.
Radii and fillets: Add radii and fillets to sharp corners and edges. It can increase part strength, reduce stress concentrations, and improve material flow in molding.

Mold Design

Tooling steel: Choose S7 or H13 mold materials for PEEK’s high temperatures and wear resistance.
Shrinkage and Warpage: Account for 0.5-2% shrinkage rate, maintain uniform wall thickness, use proper cooling channels, and optimize processing parameters.
Runner and sprue design: Balance material flow, reduce pressure loss, and ensure even mold cavity filling.
Gate Location and Type: Optimize gate type, location, and size for balance filling. reduce weld lines, minimize defect risks, and prevent material degradation.
Cooling System: Design an efficient cooling system for uniform temperature distribution, reduced cycle times, and minimized part warpage. Place cooling channels strategically.
Venting: Create molds with adequate venting to prevent gas trapping, burns, and short shots. Place vents at the flow path’s end and in gas-trapping areas.
Ejection system: Develop an effective ejection system using ejector pins, stripper plates, or sleeve ejection for smooth part removal without damage.
Thermal Expansion: Consider material’s thermal expansion properties for parts exposed to temperature changes. Ensure proper clearances and tolerances.
Mold Surface Finish: Select suitable mold surface finish for desired part surface finish and material flow. Smooth, polished surfaces facilitate material flow and reduce mold wear.
Mold Maintenance: Design molds for easy disassembly, cleaning, and inspection. Regularly inspect and maintain the mold for consistent part quality.

Injection Molding Equipment and Parameters

Equipment:

Drying machine:
Injection molding machine: Dry PEEK at 300-350°F (150-177°C) for 3-4 hours, moisture content below 0.02%.
Screw and barrel: The screw and barrel is often made of special tool steel or coated with a wear-resistant material. It can prevent wear due to PEEK’s abrasive nature, especially when using filled grades.
Hot runner system (optional): A hot runner system can be used to reduce material waste and improve cycle times. Ensure the hot runner system is compatible with PEEK’s processing temperatures and designed for easy maintenance and cleaning.
Temperature control system: A precise temperature control system is essential for maintaining PEEK’s high processing temperatures and preventing material degradation.
Mold temperature controller: A mold temperature controller is necessary to manage the temperature, ensure even cooling, and maintain part quality.

Injection Molding Parameters:

Material Preparation: Dry PEEK at 300-350°F (150-177°C) for 3-4 hours, moisture content below 0.02%.
Mold Temperature: 250-350°F (121-177°C) for material flow, dimensional stability, and minimal warpage.
Melt Temperature: Set the barrel temperature profile to achieve optimal material flow and prevent material degradation. Typical temperature settings for PEEK range from 650-750°F (343-399°C), with higher temperatures for filled grades. The nozzle temperature should be slightly lower to prevent drooling.
Injection Speed: Utilize moderate injection speeds to achieve proper material flow and minimize material degradation. Injection speed should be adjusted based on part geometry, mold design, and material grade.
Injection Pressure: The injection pressure typically ranges from 69-138 MPa. It can properly fill the mold cavity and minimize voids or short shots.
Hold Pressure and Time: Set the hold pressure and time to achieve proper packing and minimize part shrinkage or sink marks. Hold pressure typically ranges from 5,000-15,000 psi (34-103 MPa), with hold time varying based on part size and geometry.
Cooling Time: Optimize cooling time to ensure even cooling, maintain part quality, and reduce cycle times. Cooling time will depend on part size, wall thickness, and mold temperature.
Process Monitoring: Monitoring the molding process and parameters, making adjustments as needed to maintain optimal conditions.

Follow these guidelines to optimize processing Polyether Ether Ketone for top-quality parts and efficient production. Remember, every project is different, so adjust guidelines according to your specific needs. Partner with an experienced PEEK injection molding company to refine your process and achieve outstanding results.