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Manufacturers of china PAI (Torlon) utilize CNC Machining techniques.

Custom PAI (Torlon) CNC Machining from China

ETCN offers Chinese-made custom PAI (Polyamide-imide) CNC machining services, specializing in precision machining of Torlon – a high-performance thermoplastic recognized for its great strength and thermal stability. Please, reach out to us in case you are interested in custom machining solutions designed to meet all your needs.

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PAI (Torlon) CNC Machining
  • machining icon

    Enhance Your Projects with PAI (Torlon) CNC Machining Services

To enhance the standard and preciseness of works, make use of our great PAI (Torlon) CNC machining services. Our technicians always work with modern machines and creative methods to ensure that all projects are not only done accurately and quickly but also with attention to details. Join forces with us for unprecedented skillfulness and dependability in every part of your machining requirements.

PAI (Torlon) CNC Machining-1
  • ICON -Descriptions


Applications:PAI applications rely heavily on CNC machining due to its toughness and ability to withstand heat. This technique produces complex parts for harsh automotive, aerospace, and industrial settings. The accuracy of CNC machining, when paired with PAI’s exceptional qualities, enables the production of industry-compliant high-end products.

Strengths:High Precision, Superior Material Properties, and Quick Turnaround Time.

Weaknesses:Machining polyamide-imide (PAI) can be costlier compared to machining various other plastic materials.

  • Characteristics - icon

    Key Properties

 • Strong and stiff up to 275°C

• Resistant to creep and wear

• Low thermal expansion up to 275°C

• Dimensionally stable material

• Withstands friction and chemicals

• Able to resist automotive fluids, hydrocarbons, and alcohols

• Highly insulating properties

Precision CNC Machined PAI (Torlon) Parts: Unmatched Engineering Excellence

Explore our selection of materials for PAI (Torlon) CNC Machining

Uncover a wide selection of high-quality materials for the Precision Aerospace Industry (PAI) such as Torlon, which is famous for its outstanding performance in CNC Machining uses.

Torlon 4203

Torlon 4203 is the best selection for electrical components that need to be resistant to radiation because it is extremely strong and tough. This amazing material is used for insulators, seals, gaskets as well as pump and valve parts in many different industries due to its superior electrical properties and long-lastingness.

Torlon 4503

Torlon 4503, a high-performance polyamide-imide (PAI) resin, is known for its remarkable strength, stiffness, and heat resistance. It is commonly used in demanding industrial applications where abrasion, chemical attack, or elevated temperatures may be encountered.

Torlon 4501

Torlon 4501 is outstanding when it comes to durability and friction reduction; it is perfect for use in creating seals, bushings, and bearings that are used in harsh high-performance industrial environments where durability and low friction are key.

Torlon 4301

PTFE and graphite-infused Torlon 4301 are great at reducing friction and resisting wear. This makes it perfect for gears or bearings that experience a lot of movement because it can increase performance in areas with high levels of friction or wear.

Torlon CNC Machining Parameters for Your Needs: Best Options Available

Tensile Strength15,000 to 21,000 pounds per square inch
Flexural strength20,000 to 30,000 pounds per square inch
Compressive Strength24,000 to 34,000 pounds per square inch
Flexural Modulus450,000 - 1,000,000 pounds per square inch
Impact Strength (Notched Izod)0.8–1.0 feet-pound-force/inch of notch
Hardness (Rockwell)R108–R120
Thermal Conductivity1.7-10.5 BTU-in/hr-ft²-°F

Optimal Surface Finishes for PAI (Torlon) CNC Machining Services

Best Surface Treatments for PAI (Torlon) CNC Machining to Enhance Product Quality and Appearance

Aluminum Anodizing parts
Anodizing is a well-loved surface treatment that significantly extends the life of machines, including aircraft and automotive parts.It increases hardness against wear out, resists corrosion attack, and makes the surface strong, hence making it more durable with a rough look. You can get anodizing in clear or any other shade, such as black, gray, red, blue, or gold.
Bead Blasting
Bead Blasting

Learn more about bead blasting, a sophisticated method of achieving smooth surfaces with an elegant dull finish. It is suitable for use on ABS plastic, aluminum, brass, stainless steel, and steel, among other materials, because it enhances their appearance. Find out ways in which bead blasting can enhance beauty by using it together with other treatments.

Powder Coating
Powder Coating

Powder coating is an earth-friendly method that employs charged particles of dust that are heated or cured by UV light to create a finish that does not need any solvents. It can be done on aluminum, stainless steel, and other metals, painted any color including black or, according to the RAL code/Pantone number system, with a smooth surface or slightly shiny appearance.


Chrome plating of steel components is widely used because it is glossy and meets functional, aesthetic, and anti-corrosion needs in industries such as the automotive industry. Aluminum, steel, and stainless steel are some of the most common materials used to obtain a polished finish.


Unearth procedures for obtaining a polished surface finish. Find out about manual rubbing and chemical approaches to get a reflective glow on aluminium, brass, stainless steel, and mild steel surfaces.

Brushing parts

Surface brushing is a meticulous process that delicately finishes different materials such as ABS, Aluminum, Brass, Stainless Steel, and Steel. It employs abrasive belts to create a satin finish, which brightens up the look of things and makes them more attractive to the eye.

Uncover the power of Torlon® — a high-performance PAI plastic that is strong, rigid, and thermally stable. Investigate machine secrets for precision and optimizing performance in challenging engineering applications. No matter if you’re an experienced machinist or have little knowledge about advanced polymers, understanding how to machine Torlon® is crucial for its full utilization. Sharpen your abilities at machining with this material by getting professional advice concerning tool choice, setting, and finishing methods while working on different projects. This manual will help you develop superior skills in machining with tools which will give better outcomes
why choose ETCN
  • machining icon

    Why Choose ETCN's PAI (Torlon) CNC Machining

1. Exactitude: The ETCN’s CNC machining promises accuracy and quality in each Torlon component.

2. Know-How: The ETCN staff, with many years of practice, handles PAI materials with care for the best outcome.

3. Novelty: ETCN uses advanced technologies for its CNC machines to deliver efficient and improved solutions.

4. Trustworthiness: The ETCN Company is dependable when it comes to performance, which is why they have been able to produce PAI machined products on a regular basis without fail.

5. Customization: ETCN offers tailored solutions to meet your specific requirements, ensuring a personalized CNC machining experience for every client.

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Request a rapid quote today for top-notch PAI (Torlon) CNC Machining Services!

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4. Require technical support? Contact our experienced engineers for assistance!

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Frequently Asked Questions

If you want to know more about PAI (Torlon) CNC Machining

Q: What is PAI (Torlon), and why is it considered a high-performance thermoplastic?

A: Polyamide-imide (PAI), also known as Torlon, is classified as a high-performance thermoplastic because of its tremendous strength, stiffness, and heat resistance. Moreover, this material exhibits outstanding dimensional stability at elevated temperatures and has excellent wear resistance and chemical resistance in addition to a low coefficient of thermal expansion, which makes it highly suitable for use in the aerospace and automotive industries where demanding applications are common.

Q: Can PAI (Torlon) be CNC machined, and what are the benefits of machining Torlon PAI parts?

A: Yes, it can. Machining Torlon PAI parts via CNC technology allows for higher precision when creating complex components with tight dimensional tolerances. Furthermore, CNC machined Torlon PAI parts take advantage of its superior strength properties such as heat resistance ability; therefore, they can withstand extreme environments better than any other plastic materials available on the market today, thus making them ideal for use under heavy loads or high temperatures found in most industrial settings.

Q: What applications of Torlon are most common in the aerospace and automotive industries?

A: In the aerospace industry, Toulon is used widely for components requiring high strengths coupled with good fatigue life properties like seals, valves, bearings, etcetera that operate at very low temperatures (-200°C), while in the automotive sector, typical application could be an insulator installed near hot exhaust system components because this material possesses excellent durability against chemicals even under prolonged exposure time frames.

Q: How does the annealing process improve the properties of machined Torlon PAI parts?

A: Annealing relieves stresses created during machining processes; thereby enhancing dimensional stability besides lowering risks associated with cracking when working on such materials followed by increasing their strength levels which ensures reliable performance under harsh conditions where these devices are likely to be used frequently within industrial setups.

Q: What are the Torlon 4203 and 4301 grades, and what is their effect on the process of machining?

A: There are differences between grades 4203 and 4301 of Torlon which are both PAIs used in various applications. Having no fillers, this grade provides high mechanical strength as well as electrical insulation properties, hence making it easier to machine although not so much wear-resistant; on the other hand, being filled with glass fibers & graphite results in improved wear resistance with low coefficient of friction thereby making them suitable for bearing & wear applications respectively. The selection between these two grades affects the precision machining process, cutting tool wear, and final machined component properties, among others.

Q: What challenges does CNC machining Torlon PAI pose, and how can we overcome them?

A: CNC machining Torlon PAI is challenging due to its high strength and wear resistance, which causes tooling to wear out fast, besides requiring accurate temperature control during processing lest material degradation occurs. However, there are several ways that one could use to solve this problem, including employing cooling techniques so as to dissipate excess heat produced by frictional forces between cutter edge & workpiece surface; using special cutting tools designed specifically for such plastics so as not only cut faster but also last longer before getting dull or blunt; optimizing different parameters like speed/feed rate etc

Q: How does the dimensional control of machined Torlon parts compare with other plastics?

A: Machining torlons offers better control over dimensions than most plastics because it has excellent thermal stability coupled with low coefficient of thermal expansion. This means that very tight tolerances can be held during production, thus giving rise to highly accurate components necessary for fitting purposes, especially where exactness becomes a critical factor in industries like aerospace or automotive, among others.

Q: How do I get in touch with an expert on PAI (Torlon) CNC machining services provider?

A: You can go through different pages of the site until you find the “Contact Us” page, where all contact details will be available, such as phone numbers and email addresses. Sometimes, there might be a contact form that you can fill out by explaining your specific requirements so that they may know how best to assist in accomplishing your desired goal/projects related to machining Torlon.

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