PET CNC Machining Services
Engineered for critical medical and food-grade applications, our CNC PET solutions eliminate internal stress and oil contamination to deliver ±0.02mm precision that stays true in any environment.
Your Premier Custom PET CNC Machining Partner
We transform your technical drawings into high-precision PET components that demand extreme dimensional stability and medical-grade purity. By utilizing specialized stress-relieving techniques and oil-free dry machining, we achieve ±0.02 tolerances that remain stable against moisture and environmental shifts. Our process ensures every part is burr-free and fully compliant with FDA and food-safety standards, providing the reliable, high-performance execution your custom engineering projects require.
What is PET Material?
PET is a high-performance engineering thermoplastic prized for its exceptional dimensional stability and mechanical strength. Unlike other plastics, it features near-zero moisture absorption and high creep resistance, ensuring precision parts maintain their exact tolerances in humid or high-stress environments. With its inherent chemical resistance and FDA compliance, PET is the industry standard for durable, high-clarity components in the medical, food processing, and packaging sectors.
PET Material Properties
Technical Specifications
| Property | Value |
| Tensile Strength | 50 – 90 MPa |
| Elastic Modulus | 2.0 – 3.0 GPa |
| Hardness (Rockwell R) | 110 – 125 |
| Flexural Strength | 100 – 140 MPa |
| Max Service Temp | 115°C |
| Moisture Absorption | < 0.1% |
Types of PET Materials
The most common grade for CNC machining. It offers the purest form of the material with excellent mechanical strength, high clarity, and full FDA compliance. Perfect for medical and food-processing manifolds.
An internally lubricated grade containing a solid lubricant. It features a lower coefficient of friction and superior wear resistance compared to standard PET, making it the ideal choice for high-speed bearings and sliding bushings.
Reinforced with 30% to 50% glass fibers to significantly increase rigidity, tensile strength, and heat resistance. This grade is used for heavy-duty structural parts that must withstand higher thermal loads without deforming.
PET (Polyethylene terephthalate) Machined Parts Gallery
Advantages of CNC Machining PET
PET machining requires a balance of dimensional accuracy, surface stability, and controlled cutting performance. At XTPROTO, we combine advanced CNC machining technology with optimized processing strategies to manufacture high-precision PET components for industrial, electrical, and engineering applications. From rapid prototyping to scalable OEM production, we ensure reliable quality, clean machining results, and consistent production efficiency across every stage of manufacturing.
Guaranteed Purity via Specialized Oil-Free Machining
For medical and food-processing applications, dimensional accuracy is meaningless if the part is contaminated. While typical shops rely on oil-based coolants that can leach into the polymer structure, we utilize a 100% dry machining protocol powered by chilled compressed air and PCD (Polycrystalline Diamond) tooling. This clean-room approach preserves the FDA compliance and chemical integrity of the PET, delivering ultra-pure, burr-free components ready for sterile environments. We don’t just meet your specs; we protect your material’s certification.
Eliminating Dimensional Drift through Advanced Stress Management
Many PET components fail in the field because internal stresses—ignored during standard CNC cutting—cause the material to warp or “creep” days after assembly. We solve this by integrating a multi-stage thermal annealing process that neutralizes the material’s internal tension before the final finish. This ensures that the ±0.02mm tolerance on your technical drawing remains stable, regardless of environmental humidity or temperature shifts. You get parts that fit perfectly the first time and stay that way throughout their service life.
In-House Manufacturing Facility
Unlike brokerage platforms, XTPROTO operates its own state-of-the-art factory with over 20 years of expertise. Our facility is equipped with a massive fleet of CNC mills, Swiss lathes, and 5-axis centers specifically optimized for high-performance polymers. By managing 100% of production in-house, we provide absolute control over the manufacturing environment—including climate-controlled zones to manage thermal expansion and oil-free lines for medical-grade purity. From rapid prototypes to high-volume runs, we deliver superior PET components with a direct-to-factory advantage that ensures maximum precision and competitive pricing.
Expert Engineering Team
Our highly skilled machinists leverage an advanced fleet of CNC mills, lathes, and high-precision engravers to deliver “metal-like” accuracy across all industries. From single prototypes to high-volume production, we combine technical mastery with deep tooling knowledge to manufacture complex PET components with extreme precision. More than just a machine shop, we act as your technical consultants—leveraging our expertise to advise on the optimal material grades and processes to ensure your project’s ultimate success.
Our PET Machining Capabilities
PET CNC Machining
PET CNC Milling
PET CNC Turning
PET Swiss Machining
5-Axis PET Machining
Annealing & Stress Relieving
Oil-Free Dry Machining
Quality Control for PET Components
Post-machining stress validation and environmental simulation ensure parts remain within ±0.02 mm under real-world conditions.
CMM and optical systems verify complex 5-axis geometries and micro components with full FAI reporting.
High-magnification inspection eliminates burrs and micro-defects, with Ra 0.4–0.8 verified finishes.
Full batch tracking and oil-free machining ensure zero contamination and compliance with FDA and ISO 13485.
Complete documentation package including COC, RoHS, REACH, FAI, traceability, and surface finish reports.
PET OEM Manufacturing Solutions
We provide end-to-end OEM support for precision PET components, covering prototyping, CNC machining, surface finishing, and scalable production for industrial applications.
Why Choose XTPROTO for PET Machining?
PET Machining Specifications
| Feature | Capabilities & Limits |
| Available Materials | PET (Black/White), PET+GF30 (Black/White) |
| Standard Tolerance | ± 0.125 mm |
| Precision Tolerance | ± 0.02 mm (Upon Request) |
| Lead Time | Fastest 1 day |
| Minimum Wall Thickness | 0.5 mm |
| Max Part Dimensions | 1200 x 500 x 150 mm (CNC) |
| Surface Finish | Ra 0.4 – 0.8 μm |
Surface Finishing Options for PET Components
Industry & Applications for PET Machining
Industrial Machinery
Electrical & Electronics
Automotive Engineering
Medical & Laboratory
Food & Beverage
Consumer Products
PET CNC Machining FAQ
Why is annealing critical for PET CNC machining?
When should PET-GF30 be used instead of standard PET?
Does surface finishing affect PET performance?
How to Change my Photo from Admin Dashboard?
Why is oil-free machining required for medical-grade PET?
Can machined PET achieve optical clarity?
How does PET compare to POM (Delrin)?
Bring Your Vision to Life with XTPROTO
Ready to transform your CAD designs into high-precision PET components? Upload your files now for a free, instant quote and start your production journey today.