High-Performance Polymer Machining
Custom PEEK CNC Machining Services
PEEK combines high-temperature capability, chemical resistance and mechanical strength for demanding precision components. Send your drawing for grade selection, DFM review and a transparent machining quote.
Upload Your DrawingPEEK Material Properties
Key Mechanical and Thermal Parameters
Representative supplier values for unfilled PEEK, 30% glass-filled PEEK and 30% carbon-filled PEEK.
Values are representative, not design allowables. Confirm the exact grade, conditioning and test method from the supplier datasheet.
Machining Capability
PEEK CNC Machining Parameters
Drawing-based limits for precision milled and turned PEEK components.
| Maximum work envelope | 3000 × 1200 × 850 mm; stock and fixture dependent |
|---|---|
| Typical dimensional tolerance | ±0.02 mm |
| Selected precision features | ±0.01 mm after drawing review |
| Minimum wall thickness | 0.8 mm |
| Minimum internal radius | R0.3 mm |
| Machined surface roughness | Ra 0.8–3.2 µm |
PEEK Grade Selection
Select the Right PEEK Grade
Match the PEEK formulation to load, temperature, wear, electrical control and certification requirements.
Virgin PEEK
Unfilled PEEK combines toughness, chemical resistance and electrical insulation without reinforcing fibers.
Glass-Filled PEEK
Glass-filled PEEK provides higher stiffness, lower thermal expansion and improved dimensional stability.
Carbon-Filled PEEK
Carbon-filled PEEK increases stiffness, creep resistance, wear performance and heat dissipation.
Bearing-Grade PEEK
Bearing-grade PEEK uses lubricating and wear-resistant fillers to reduce friction in sliding contact.
ESD and Semiconductor PEEK
Static-dissipative and conductive PEEK grades provide controlled electrical resistance for sensitive production equipment.
Medical-Grade PEEK
Medical-grade PEEK provides documented composition, traceability and biocompatibility for regulated components.
Filler content, electrical performance, medical status and compliance records are confirmed from the exact supplier datasheet before production.
Machined PEEK Projects
Custom CNC-Machined PEEK Parts
Prototype and low-volume PEEK components machined and inspected to your drawing.
Functional Surface Options
Surface Finishes for PEEK Parts
PEEK is normally used as machined. Secondary finishes are selected only when roughness, identification or adhesion requires them.
As-Machined
Preserves dimensions and base material properties with controlled tool marks.
Mechanical Polishing
Reduces machining marks on suitable sealing, optical or appearance surfaces.
Bead Blasting
Creates a uniform matte texture on non-sealing and non-sliding areas.
Laser Marking
Adds durable part numbers, serial codes and traceability marks.
Controlled Production
From Drawing Review to Final Inspection
PEEK grade, datum strategy, heat control and inspection points are defined before machining and verified before shipment.
DFM Review
Grade, certification, tolerances, walls and datum strategy are checked first.
Process Control
Sharp tooling, stable support and controlled heat protect geometry and finish.
Dimensional Inspection
Critical dimensions and geometric tolerances are verified against the drawing.
Delivery Control
Approved parts are cleaned, protected, labeled and packed for shipment.
PEEK Machining FAQ
Project Questions
Concise answers for specifying CNC-machined PEEK components.
What are the main challenges when CNC machining PEEK?
Heat buildup, internal stress, burrs and abrasive reinforcement can affect size and tool life. Use sharp tools, stable support, effective chip removal and grade-specific parameters.
Which PEEK grade is easiest to machine?
Unfilled PEEK is generally the cleanest to machine. Glass- and carbon-filled grades hold dimensions well but are more abrasive and require wear-resistant tooling.
How should tight PEEK tolerances be controlled?
Use stress-relieved stock, remove material symmetrically, control cutting heat and allow the part to stabilize at inspection temperature before final measurement.
Which tools are suitable for reinforced PEEK?
Sharp carbide tools work for many operations; PCD tooling improves life on abrasive glass- or carbon-filled grades. Tool geometry must maintain clean chip evacuation.
Can PEEK parts be polished or marked?
Yes. Mechanical polishing, bead blasting and laser marking are common. Coating or printing requires application-specific surface preparation and adhesion testing.