PTFE - Dahong Precision

What Is PTFE?

PTFE (polytetrafluoroethylene), commonly known as "Plastic King", is a high-molecular polymer produced by the polymerization of tetrafluoroethylene as the monomer. White waxy, with excellent heat and cold resistance, it can be used for a long time at -180 to 260 ° C. This material is resistant to acids, alkalis and various organic solvents, and is almost insoluble in all solvents. Due to its unique chemical and physical properties, it can become an important material in the fields of high-precision hardware components and precision mechanical processing.

CNC Machining PTFE (Teflon)

Dahong Precision is a factory that produces high-precision hardware components, precision automation, and precision mechanical parts. Its CNC processing can produce precise and complex polytetrafluoroethylene parts

With 9 years of mechanical processing experience and advanced one-stop processing machinery and equipment, whether it is a single sample or mass production, we can customize PTFE parts according to your requirements and drawings.

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PTFE (polytetrafluoroethylene) Is The Ideal Choice For High-Precision Industrial Components

Temperature resistance: PTFE has a very wide operating temperature range and can be used stably for a long time within the temperature range of -180 ℃ to 260℃. Even in high or low temperature environments, its performance will not change significantly.

Chemical stability: PTFE has excellent resistance to almost all chemical substances and can resist corrosive substances such as acids, alkalis, and solvents.

Low coefficient of friction: The coefficient of friction of PTFE is extremely low, which enables it to reduce wear and improve efficiency when applied in mechanical components.

Insulation performance: PTFE is an excellent electrical insulator and performs well in electronic and electrical applications.

Processing performance :PTFE can be formed through various processing methods, such as CNC milling, which can produce a wide range of complex-shaped and precisely sized hardware components, precision automation components and precision mechanical components.

The Grade of PTFE Material

PTFE (polytetrafluoroethylene) materials can be classified into several different grades based on their various compositions, processing techniques and properties. The following are some common grades of PTFE materials and their characteristics

Grade	Characteristic	Application scenarios
Standard PTFE	It has excellent high-temperature resistance, chemical resistance and a low coefficient of friction	It is widely used in seals, insulating materials and sliding parts, etc
Glass fiber filled PTFE	Enhance strength and rigidity and reduce the coefficient of thermal expansion	It is suitable for components that require high strength and wear resistance, such as valves and bearings
Carbon-filled PTFE	Improve electrical conductivity and wear resistance	It is commonly used in electrical applications and high-load sliding components
Graphite-filled PTFE	Improve wear resistance and self-lubricating performance	High-temperature sealing gaskets, self-lubricating guide rails
Food-grade PTFE	It complies with food contact safety standards and is ensured to be non-toxic and harmless	Equipment and components widely used in the food processing and pharmaceutical industries
Medical-grade PTFE	It meets the strict standards of the medical industry and has excellent biocompatibility	Used in medical devices, implants and other medical applications

Mechanical Property Diagram of PTFE

Learning more about the mechanical properties of PTFE can help you choose materials for your project

Performance parameter	Pure PTFE	Glass fiber filled PTFE (25% glass fiber)	Graphite-filled PTFE (15% graphite)	Carbon fiber filled PTFE (20% carbon fiber)
Performance parameter	Pure PTFE	Glass fiber filled PTFE (25% glass fiber)	Graphite-filled PTFE (15% graphite)	Carbon fiber filled PTFE (20% carbon fiber)
Density (g/cm³)	2.15-2.20	2.30-2.40	2.10-2.25	1.90-2.10
Tensile strength (MPa)	20-35	30-45	15-25	50-70
Elongation at break (%)	200-400	100-200	150-300	50-150
Compressive strength (MPa)	12-15	25-35	20-30	40-60
Elastic modulus (MPa)	400-600	1,000-1,500	800-1,200	2,000-3,500
Hardness (Shore D)	D50-D60	D65-D75	D55-D65	D70-D85
Coefficient of friction (vs steel)	0.04-0.10	0.08-0.12	0.03-0.06	0.05-0.08
PV limit (MPa·m/s)	0.05	0.35	0.1	0.5
Coefficient of thermal expansion (×10⁻⁶/°C)	100-150	50-80	80-120	20-40
Thermal conductivity (W/m·K)	0.25	0.35	0.3	0.4

How To Choose a PTFE Material CNC Processing Service Provider

Choosing the right CNC machining service provider is the key to ensuring the quality and cost-effectiveness of PTFE parts. The following are the factors to be considered when making a choice

Experience and Professionalism

Choose suppliers with rich experience in PTFE material processing.

Equipment and Technology

Ensure that suppliers have advanced CNC machine tools and inspection equipment.

Quality Control

Understand the quality control process of the supplier, including material certification and processing accuracy inspection.

Customization ability

Suppliers should be able to provide customized solutions according to customer demands.

Delivery time and cost

Evaluate the delivery capacity and price competitiveness of the suppliers.

CNC Machining PTFE Materials

About PTFE CNC Machining

Polytetrafluoroethylene (Teflon) is a composite material. It has good heat resistance and is not prone to rust. The material is soft and easy to form through CNC machining, but ensuring accuracy can be challenging.

Teflon is different from other plastics because it melts at very high temperatures, has low friction, an extremely low anti-sticking surface energy, and does not react with many chemical substances.

As a professional precision parts manufacturer, we focus on the CNC machining of high-precision components made of polytetrafluoroethylene. The CNC milling processing technology ensures the dimensional accuracy and surface finish of PTFE parts, meeting the demands of various industries.

Contact Dahong Precision -Machining for CNC machining of PTE and other thermoplastics. Our experienced engineers and mechanics will customize the components according to your requirements.

PTFE (polytetrafluoroethylene)FAQ

What is the processing accuracy of our PTFE material?

In our factory, the processing accuracy of PTFE materials is quite high. The dimensional tolerance can be controlled within ±0.01mm to ±0.05mm, and the specific accuracy depends on the complexity and size of the component. We adopt advanced CNC machine tools, equipped with high-precision cutting tools and professional processing programs, which can achieve stable processing accuracy. Meanwhile, we also have a strict inspection process. We use precision measuring equipment to conduct multi-faceted inspections on the processed PTFE components, including dimensions, shape and position tolerances, to ensure that each component can meet the high-precision requirements of customers.

Can PTFE components withstand strong acid and strong alkali environments?

PTFE components have excellent chemical corrosion resistance and can withstand strong acid and strong alkali environments. This is because the carbon-fluorine bonds in the PTFE molecular structure have extremely high bond energy, strong chemical stability, and are almost not eroded by most chemicals. However, its performance may be affected when exposed to high temperatures, high pressures, or in contact with specific strong oxidants and reductants.

Are PTFE components useful in the food industry?

PTFE components are very useful in the food industry. PTFE components are resistant to chemical corrosion and can withstand the erosion of common acids, alkalis and other chemical substances in food processing, ensuring that food is not contaminated. Its low coefficient of friction enables food to move smoothly in processing equipment, reduces adhesion, and lowers energy consumption and cleaning difficulty. Meanwhile, it also has excellent high-temperature resistance and can remain stable at a continuous working temperature as high as 260℃, meeting the high-temperature requirements of food processing.

Will PTFE produce toxic gases at high temperatures?

When using PTFE, it is necessary to avoid exceeding its recommended operating temperature (usually below 260℃) as much as possible, and take appropriate safety precautions when operating at high temperatures, such as ensuring good ventilation conditions and wearing protective equipment.

How long does it usually take from our order placement to the dispatch of PTFE components? Could you speed up the delivery progress according to our urgent needs?

From order confirmation to completion of production and shipment in our processing factory, it usually takes 5 to 10 days for regular orders. The specific time depends on factors such as the complexity of the order, the quantity of products and the inventory of raw materials. For urgent orders, we have a flexible emergency response mechanism that can complete some simple and urgent orders within 2 to 3 days to meet your urgent needs.

Other Materials

Aluminum

Lightweight, corrosion-resistant, highly conductive

Stainless steel

Rust proof, strong, hygienic, widely used in industry

POM(Polyoxymethylene)

High hardness, light weight, high steel, high wear

PVC

Flame retardant, weather resistance, stability suitable for auto parts

DaHong Machining

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