CNC Polypropylene Machining Services

What is PP CNC Machining?

Polypropylene (PP) is a lightweight, chemical-resistant thermoplastic used in fluid handling, labware, housings, and fixtures. It machines cleanly but can be flexible and prone to burring if the tool isn’t sharp.

• Tooling: Razor-sharp O-flute / polished carbide; high rake to shear chips.
• Heat control: Air blast or light mist—avoid melting/chip-weld.
• Feeds/Speeds: Higher feed with shallow step-over; steady chip load to prevent fuzz.
• Workholding: Vacuum/soft jaws; support thin walls and large panels.

Key Considerations

PP is tough but flexible—use short stick-out and firm clamping. Climb milling gives cleaner edges. Deburr lightly (blade/tumble) to avoid whitening.

For fluid/contact parts, verify media compatibility and consider post-machining stress relief on thick plates.