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PTFE (polytetrafluoroethylene) machined components are parts made from PTFE, a versatile plastic with many unique properties: 

  • Chemical resistance

    PTFE is resistant to chemicals, moisture, heat, and radiation. 

  • Low friction

    PTFE has a low coefficient of friction, making it ideal for applications that require low friction, such as bearings, bushings, and seals. 

  • Temperature range

    PTFE has a wide temperature range, from -200°C to +260°C, making it suitable for applications that require extreme temperature resistance. 

  • Electrical insulation

    PTFE is an effective electrical insulator, making it useful in electrical components and insulation. 

  • Machinability

    PTFE can be easily machined on standard equipment, including CNC and VMC machines. 

  • Resilience

    PTFE is very resilient, which allows machined parts to conform to most working dimensions. 

Some examples of PTFE machined components include:

  • Cabling and electrical insulators
  • Semiconductor components
  • High temperature electrical parts
  • Capacitors
  • Non-lubricated bearings
  • O-rings, seals, and gaskets
  • Bushings and bearings
  • Gears
  • Valve components
  • Medical parts, such as valves and needle cases 

Some tips for machining PTFE include: Use very sharp cutting tools, Apply liberal amounts of water-soluble coolant, Aim for medium-to-loose tolerance, and Plan a deburring strategy in advance.