PTFE Machining Services

PTFE is renowned for its high and low temperature resistance, chemical resistance, excellent non-stick properties, and superior insulating properties, making it ideal for use in harsh environments.

Through CNC machining, we can leverage PTFE’s ease of forming before curing and ease of machining after curing to create precise, complex, and dimensionally stable parts. CNC machining ensures consistent quality, repeatability, and surface finish for both prototypes and large-scale production.

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Material Report
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Our PTFE CNC Machining Service

We specialize in precision CNC machining of PTFE , a material valued for its exceptional chemical resistance, extremely low friction, non-stick properties, and wide operating temperature range. By leveraging PTFE’s moldability before sintering and excellent machinability after sintering, we produce highly precise, complex components that meet the strict requirements of various industries. We offer a variety of PTFE grades, each designed to enhance specific performance characteristics. Selecting the appropriate grade ensures optimal results for your application.

Virgin PTFE

Pure PTFE with maximum chemical resistance, low friction, and excellent dielectric strength. It is ideal for high-purity, food contact, and medical applications where cleanliness and non-contamination are critical.

Mechanical Grade PTFE

Reprocessed PTFE with slightly lower purity but improved cost efficiency. Suitable for general-purpose industrial applications where extreme purity is not required.

Glass-Filled PTFE

Contains 15–25% glass fibers to significantly improve wear resistance, stiffness, and reduce deformation under load. Commonly used in seals, bearings, and components under continuous mechanical stress.

Carbon-Filled PTFE

Typically contains 25% carbon to enhance wear resistance, thermal conductivity, and dimensional stability. Performs well in high-load and high-temperature environments, such as pump parts and valve seats.

Bronze-Filled PTFE

Infused with 40–60% bronze powder to provide higher strength, improved dimensional stability, and excellent wear resistance. Well-suited for applications requiring high compressive strength and low deformation, like heavy-duty bearings and piston rings.

Graphite-Filled PTFE

Contains graphite to further reduce friction and improve wear performance while maintaining good chemical resistance. Ideal for dry-running applications and parts exposed to abrasive conditions.

PTFE Material Properties

PTFE is a high-performance polymer with excellent chemical resistance, low friction, and a wide operating temperature range. Below are its key physical and mechanical properties:

Property Category	Property	Description
Chemical	Chemical Resistance	Excellent resistance to most chemicals (acids, bases, solvents)
	Solvent Resistance	Insoluble in water and most organic solvents
Physical	Density	Approximately 2.2 g/cm³
	Water Absorption	Very low, practically non-absorbent
	Color	Milky white to translucent
Thermal	Operating Temperature Range	-200°C to +260°C
	Melting Point	Around 327°C
	Coefficient of Thermal Expansion	Relatively high, approx. 12-18 × 10⁻⁵ /°C
Mechanical	Tensile Strength	Approximately 20-35 MPa
	Elongation at Break	High, typically >200%
	Hardness (Shore D)	About 50-60
	Coefficient of Friction	Very low, around 0.05-0.10
Electrical	Dielectric Constant	Approximately 2.1
	Dielectric Strength	60-120 kV/mm
	Volume Resistivity	Very high, around 10¹⁸ Ω·cm

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Our CNC Machining PTFE-Teflon Capabilities

CNC Teflon machining, also called PTFE CNC machining, uses computer-controlled machines to cut and shape PTFE material precisely. This process allows the production of detailed and complex parts with very tight tolerances, which is important for many specialized industries.

We offer a wide range of CNC machining services to handle different types of projects, from simple pieces to complex assemblies. Our advanced equipment and skilled team work together to make sure every part is made accurately and efficiently.

Our services include CNC turning for round parts like shafts and bushings, CNC milling for flat or shaped surfaces such as housings and brackets, and advanced 3-axis or 5-axis machining that helps produce high-precision parts faster and with fewer setups.

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Advantages of PTFE CNC machining

PTFE CNC machining offers many benefits that make it the preferred method for producing precise, high-quality parts from Teflon material. Below are some key advantages:

High Precision and Accuracy
CNC machines can produce complex shapes and detailed features with very tight tolerances, ensuring parts fit perfectly in their intended applications.
Excellent Surface Finish
PTFE parts machined by CNC have smooth surfaces that reduce friction and wear, which is important for components like seals and bearings.
Fast and Consistent Production
CNC machining allows for efficient production runs with consistent quality, whether making one prototype or large batch manufacturing.
Ability to Handle Complex Designs
With multi-axis CNC machines, even highly intricate and precise parts can be manufactured, enabling innovative designs and custom solutions.
Material Integrity Maintained
PTFE’s chemical resistance and thermal properties remain intact after machining, ensuring the finished parts perform reliably in harsh environments.
Reduced Waste
CNC machining optimizes material use by cutting precisely, which minimizes waste and lowers production costs.

The Uses of Teflon

As a high-performance polymer, Teflon is not only valued for its durability but also for its excellent machinability. Below are some of the common applications where Teflon is widely used:

Non-stick Coatings
Teflon’s exceptionally low friction surface makes it ideal for non-stick cookware, preventing food from adhering and enabling easy cleaning.
Electrical Insulation
Its excellent dielectric properties make Teflon a preferred choice for insulating wires and cables, especially in environments requiring high voltage resistance.

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Seals and Gaskets
Teflon’s stability at high temperatures and chemical inertness allow it to serve as reliable material for seals, gaskets, and valve components in harsh conditions.
Medical Applications
The biocompatibility and inert nature of Teflon enable its use in medical devices such as catheters and implants, ensuring safety inside the human body.
Mechanical Parts
Teflon’s very low coefficient of friction and wear resistance make it suitable for bearings, bushings, and sliding parts where smooth movement is critical.
Aerospace and Automotive
Teflon’s ability to withstand extreme temperatures and resist chemical degradation makes it essential in fuel system components, hoses, and insulation within aerospace and automotive applications.

PTFE-Teflon Materials for Prototyping and Production

With over 15 years of experience as a CNC machining manufacturer, we specialize in providing high-quality PTFE-Teflon materials for both prototyping and full-scale production. Leveraging integrated supply chain management and strict process controls, we ensure every stage of production meets rigorous standards. Our commitment to quality is reflected in a defect-free rate as high as 99.98%, guaranteeing reliable and consistent parts that perform to specification.

Whether you need high-purity PTFE seals, gaskets, insulators, or custom-designed components, VMT delivers precision-engineered solutions that maximize the performance benefits of PTFE in your specific applicatio

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Our Other PTFE Machining Services

In addition to standard CNC machining, we offer a comprehensive range of PTFE machining services to meet diverse project needs. Our advanced capabilities ensure high-quality, precise, and efficient production of PTFE components, including:

5 axis CNC Machining Manufacturing Services

3-Axis and 5-Axis Machining

Utilizing advanced multi-axis machines to create intricate PTFE components with fewer setups, improving accuracy and manufacturing efficiency.

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CNC Prototype Machining Manufacturing Services

Rapid Prototyping

Fast turnaround for PTFE prototypes, allowing for quick design validation and iterative development before full-scale production.

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Custom Fabrication and Assembly

Tailored PTFE parts fabrication combined with assembly services to deliver ready-to-use components for specialized applications.

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CNC Machining PTFE FAQs

What is PTFE?

PTFE is a synthetic fluoropolymer known for its excellent chemical resistance, low friction, and high thermal stability. It is widely used in non-stick cookware coatings, seals, gaskets, and electrical insulation due to its inertness and durability.

What are the Tips for Machining PTFE?

When machining PTFE, use sharp tools and maintain low cutting speeds to avoid melting. Secure the material firmly to reduce vibration and deformation. Consider cooling or chip removal to prevent heat buildup. PTFE’s softness allows easy machining, but its flexibility requires careful handling to ensure precision.

What are the Manufacturing Methods of PTFE?

PTFE is produced mainly through suspension polymerization. The raw polymer powder can be processed by sintering, compression molding, ram extrusion, or paste extrusion. Final shaping often involves machining due to PTFE’s high melting point and unique flow properties.

Is PTFE the same as Teflon?

Yes. Teflon is DuPont’s brand name for PTFE. Both refer to the same chemical material, but “Teflon” is a trademark commonly used to describe PTFE products, especially in consumer goods like non-stick cookware.

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Project Started Today

With a range of finishing services to choose from and guaranteed quality thanks to our inspection services you can trust you will receive great parts every time. Once you send us your 3D CAD file, one of our customer service engineers will check your design for manufacturability to ensure that the part can be made to your expectations and budget requirements. Contact us today for a free quote!

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PTFE Machining Services

Our PTFE CNC Machining Service

PTFE Material Properties

Our CNC Machining PTFE-Teflon Capabilities

Advantages of PTFE CNC machining

The Uses of Teflon

PTFE-Teflon Materials for Prototyping and Production