PAI Torlon CNC Machining Services
Custom PAI (Polyamide-Imide) Components Manufactured to Tight Tolerances for Semiconductor, Aerospace, Medical and Industrial Applications.
STEP / STP / IGS / X_T accepted · NDA available
What Is PAI (Polyamide-Imide)?
Machining of PAI
PAI (Polyamide-Imide), best known by the trade name Torlon, is the highest-performing melt-processable thermoplastic available. PAI parts machining demands specialized expertise, Reference: Torlon PAI Technical Data.Unlike PEEK or PTFE, PAI maintains its mechanical properties at temperatures where most engineering plastics soften or degrade, making it the go-to material for mission-critical aerospace, semiconductor, and downhole oil and gas components.
Our plastic machining process has been refined over 18 years. We understand the unique challenges,Please contact our sales and technical teams to learn about how we can provide high-quality machining PAI Engineering plastic services at a fair and competitive price.
Key Properties of PAI Material
| Property | Typical Value |
| Continuous Service Temperature | 260°C |
| Glass Transition Temperature | 280°C |
| Tensile Strength | 186 MPa |
| Compressive Strength | 250 MPa |
| Wear Resistance | Excellent |
| Thermal Expansion | Very Low |
| Creep Resistance | Outstanding |
Why Choose PAI for Critical Components?
Exceptional Heat Resistance
PAI maintains structural integrity in environments exceeding 250°C.
Applications include:
- Semiconductor processing equipment
- Aerospace systems
- Industrial ovens
- High-temperature fixtures
Outstanding Wear Resistance
One of the best engineering plastics for friction and wear applications.
Ideal for:
- Bearings
- Bushings
- Wear pads
- Rollers
- Seals
Superior Mechanical Strength
PAI exhibits excellent compressive strength and stiffness, making it suitable for replacing metal components in weight-sensitive applications.
Excellent Dimensional Stability
Low thermal expansion and high creep resistance ensure reliable performance under load.
PAI Machining Capabilities
Welcome to PlasticPartsCustom, your trusted partner for high-performance PAI machining capabilities. Our state-of-the-art CNC machines and experienced team of engineers and technicians enable us to produce high-precision, complex parts with tight tolerances and exceptional surface finishes, using PAI, a high-performance engineering thermoplastic.
CNC Milling
Our multi-axis machining centers produce complex PAI components with tight tolerances and excellent repeatability.
CNC Turning
Manufacturing:
- Bushings
- Rollers
- Sleeves
- Bearing Components
- Seal Rings
Tolerance:
Up to ±0.01 mm
Complex Precision Components
We machine:
- Semiconductor Fixtures
- Vacuum Components
- High-Speed Wear Parts
- Medical Device Assemblies
PAI Grades We Machine
Torlon® 4203
General-purpose PAI grade.
Advantages:
- Excellent toughness
- High strength
- Outstanding machinability
Applications:
- Semiconductor tooling
- Electrical insulators
- Medical equipment
Torlon® 4301
Wear-resistant grade.
Advantages:
- Low friction
- High wear resistance
Applications:
- Bearings
- Bushings
- Sealing components
Torlon® 5530
30% Glass-Filled PAI.
Advantages:
- Higher stiffness
- Improved dimensional stability
Applications:
- Precision fixtures
- Structural components
Custom PAI Grades
We support machining of:
Torlon 4203
Torlon 4301
Torlon 4503
Torlon 5030
Torlon 5530
Material certifications available upon request.
PAI Parts We Manufacture
Our PAI machining services support a wide range of custom applications.
Semiconductor Components
- Wafer handling parts
- Vacuum chamber components
- Precision positioning systems
- Electrical insulators
Medical Device Components
- Sterilization-resistant parts
- Precision instrument components
Aerospace Components
- Structural supports
- High-temperature brackets
- Lightweight wear components
Industrial Automation Components
- High-load guides
- Bearing cages
- Wear-resistant fixtures
Common PAI Machining Challenges We Solve
Internal Stress Control
PAI materials can generate internal stress during machining.
Our machining process minimizes deformation and dimensional drift.
Precision Tolerance Management
Specialized fixturing and process control ensure tight tolerances.
Surface Finish Optimization
Custom tooling strategies improve surface quality while preserving dimensional accuracy.
Material Cost Optimization
PAI is one of the most expensive engineering plastics.
Our DFM review helps reduce machining costs and material waste.
Quality Assurance
Available quality documentation:
Material Certificates
COC
FAI Reports
Inspection Reports
Inspection conducted throughout the manufacturing process, not only at final inspection.
Why Choose PlasticPartsCustom Tech for PAI Machining?
| Engineering Plastic Expertise Over 10 years of experience machining high-performance plastics. |
| Tight Tolerances Precision machining up to ±0.01 mm. |
| Advanced Inspection Equipment Mitutoyo CMM Vision Measurement Systems Precision Gauges |
| No MOQ From 1-piece prototypes to low-volume production. |
| Fast Lead Times Typical prototypes delivered within 5–7 working days. |
Industries We Serve
- Semiconductor Equipment
- Medical Devices
- Industrial Automation
- Aerospace
- Electronics
- Scientific Instruments
- Energy Systems
PAI (Torlon) vs PEEK: Which High-Performance Engineering Plastic Should You Choose?
PAI (polyamide-imide / Torlon) and PEEK are both ultra-high-performance engineering plastics, but PAI offers superior mechanical strength and wear resistance while PEEK provides broader chemical resistance and better impact strength.
| Property | PAI (Torlon) | PEEK |
|---|---|---|
| Max Service Temperature | 260°C (500°F) | 250°C (480°F) |
| Tensile Strength | 186 MPa | 95-100 MPa |
| Compressive Strength | 250 MPa | 120-140 MPa |
| Wear Resistance | Outstanding | Excellent |
| Creep Resistance | Outstanding | Excellent |
| Chemical Resistance | Good (affected by strong bases) | Excellent (broader range) |
| Impact Resistance | Moderate | Good |
| Moisture Absorption | Moderate (0.3-0.5%) | Very Low (0.1%) |
| Dimensional Stability | Excellent | Excellent |
| Biocompatibility | Limited | ISO 10993 (medical grade) |
| Machinability | Challenging (requires experience) | Good (requires experience) |
| Relative Cost | $$$$$ | $$$$ |
| Best For | High-load bearings, seals, compressor components, aerospace bushings, semiconductor wear parts, extreme mechanical environments | Medical implants, semiconductor components, aerospace parts, chemical processing, high-temperature electrical insulation |
Choose PAI (Torlon) if you need the highest mechanical strength (186 MPa tensile, 250 MPa compressive), outstanding wear and creep resistance for extreme-load bearing applications up to 260°C. Choose PEEK if your application requires broader chemical resistance, better impact strength, lower moisture absorption, biocompatibility for medical implants, or a more machinable high-performance alternative.
Not sure which material fits your project? Send us your drawing for a free material recommendation.
Related Materials
Explore other engineering plastics we machine:
| Material | Key Properties | Best For |
|---|---|---|
| PEEK | Broader chemical resistance, impact resistant | Medical implants, semiconductor, aerospace |
| PI (Polyimide) | Highest temp 300°C, electrical insulation | Semiconductor, aerospace, vacuum |
| PPS | Chemical resistant, 220°C, cost-effective | Semiconductor, automotive, electrical |
Frequently Asked Questions
Gallery of CNC Machined PAI Parts
PAI 5 Axis High Precision CNC Machining
The material is high-end engineering plastic PAI (TORLON) polyamide-imide (Terlon/Tron), which has good high-temperature resistance, wear-resistant
CNC Machining Plastics PAI(Torlon) Application in Semiconductor Industry
The semiconductor industry affects people’s lives in many ways, it involves consumer electronics, Electronic tests, lighting applications, Chip tests, Integrated circuits,
Request a Quote for PAI Machined Parts
Whether you need a single prototype or a low-volume production run, our engineering team can help evaluate your design and provide a competitive quotation.
Simply Send Us:
- 2D Drawings (PDF)
- 3D Files (STEP, STP, IGES, X_T)
- Quantity Requirements
- Material Specifications
What You Will Receive
- DFM Feedback
- ✓ Competitive Pricing
- ✓ Lead Time Confirmation
- ✓ Inspection Plan
- ✓ Engineering Support