Custom PEEK CNC Machining Services
Custom PEEK components for high-temperature, chemical, wear, aerospace, medical and semiconductor applications using milling, turning and grinding.
Request a PEEK Parts Quote
Why Machine PEEK Components?
PEEK plastic is a semi-crystalline engineering thermoplastic selected for demanding heat, chemical, mechanical and dimensional requirements.
Thermal and Chemical
Published continuous service up to 260°C with broad chemical resistance; actual limits depend on grade and environment.
Mechanical and Wear
High strength, wear resistance and low creep support loaded precision components.
Dimensional Stability
Low water absorption below 0.5% helps reduce long-term dimensional change.
*Biocompatibility applies to validated medical-grade PEEK and must be confirmed against the required regulatory and application standard.
Common PEEK Material Options
The original taxonomy is corrected by separating unfilled, reinforced, blended and application-specific grades.
Unfilled PEEK
Heat and chemical resistance for insulation, food-processing and general precision parts.
PEEK-GF
Glass fiber improves rigidity, strength, dimensional stability and heat performance.
PEEK-CF
Carbon fiber raises strength, modulus and wear performance for loaded components.
PEEK-PI
Enhanced heat and chemical resistance for energy and demanding industrial equipment.
PEEK-PTFE
Improved self-lubrication for bearings, seals and sliding components.
PEEK-PPS
Combines heat resistance, rigidity and chemical stability for engine and electronics parts.
PEEK-PPSU
Improved toughness and impact performance for medical and sporting components.
Medical-Grade PEEK
Biocompatible grades for regulated instruments and implantable applications.
Bearing-Grade PEEK
Self-lubricating, wear-resistant material for bearings, sliders and long-running parts.
PEEK CNC Machining Parts and Applications
PEEK supports complex turned, milled and drilled components without dedicated molds, from prototypes through repeat production.
Surface Finishes for PEEK Parts
PEEK generally retains its material performance after machining; printing and coatings require application-specific surface preparation.
As-Machined
Fine tool marks remain while dimensional stability and base material properties are preserved.
Polishing and Sandblasting
Polishing reduces roughness; sandblasting creates a consistent matte finish on suitable areas.
Laser Engraving
Permanent logos, serial numbers and part codes support identification and traceability.
Printing and Coating
Limited printing or functional coatings may be used after proper surface activation.
Why Work With Weldo for PEEK Parts?
Multi-axis machining, DFM review and coordinated inspection support high-value PEEK components from samples through repeat production.
Capacity for complex milling, turning and grinding.
Feedback to improve geometry, material use and cycle time.
Published detection accuracy using CMM systems.
Samples from 1 day; production in 3–15 days.
Frequently Asked Questions
The original answers are shortened and broad claims are qualified.
Is PEEK suitable for CNC machining?
Yes. PEEK offers strength, heat resistance, chemical resistance and dimensional stability, but machining strategy must match the selected unfilled or reinforced grade.
Which precautions matter when machining PEEK?
Control chip heat with suitable coolant or lubricant, manage dust and static, and use stable workholding that does not distort the part.
Which cutting tools are suitable?
Sharp carbide tools are commonly used for their hardness, wear resistance and heat performance. Tool geometry should match the operation and reinforcement level.
How can PEEK machining efficiency be improved?
Optimize CAM toolpaths, validate cutting parameters, batch similar parts and maintain tools and equipment consistently.
How should a PEEK grade be selected?
Match the grade to temperature, chemicals, load, wear, electrical, medical and dimensional requirements, then confirm material certification and availability.
Send Your PEEK Part Drawing for Review
Upload the drawing, PEEK grade, quantity, tolerance, certification and surface requirements. Weldo can review manufacturability before quoting.
- STEP
- STP
- IGES
- STL
- DWG
- DXF
One project file is enough to begin the review.