What is custom PEEK CNC machining?

We produce PEEK parts to your specific design—your dimensions, tolerances, material, and finish. Every job is unique and built to your requirements.

What PEEK grades can you machine for custom orders?

Unfilled PEEK, 30% glass-filled PEEK, and carbon-filled PEEK. Unfilled and glass-filled grades are biocompatible.

What are the challenges of machining PEEK?

PEEK has a melting point of 343°C and poor thermal conductivity, so heat builds up during cutting and can cause melting. Sharp tools, positive rake angles, high spindle speeds, and efficient chip evacuation are required.

Is PEEK biocompatible?

Unfilled PEEK and glass-filled PEEK are biocompatible and meet ISO 10993 requirements for medical implants. Carbon-filled PEEK is not typically used in implant applications.

What is the typical lead time for custom PEEK parts?

Prototypes in 3-5 business days. Production orders in 10-20 business days.

Can PEEK be sterilized?

Yes, PEEK can be sterilized by autoclave, ethylene oxide, gamma radiation, and steam sterilization without degradation.

Custom PEEK

Custom PEEK CNC machining is the precision processing of polyetheretherketone manufactured to customer-defined specifications. PEEK is a semi-crystalline polymer with exceptional mechanical, thermal, and chemical resistance properties. It maintains structural integrity at continuous service temperatures up to 260°C, exhibits excellent creep resistance, and provides outstanding chemical resistance.

PEEK is biocompatible and sterilizable, making it ideal for medical implants and surgical instruments. Machining PEEK requires sharp carbide tooling, positive rake angles, and efficient chip evacuation to prevent melting. Tolerances are held to ±0.02-0.05mm standard, with precision work at ±0.01mm. Every custom order is unique—your design, your tolerances, your material, your finish.

Our CNC Machining Services

From prototype to production — reliable quality, on-time delivery

We provide precision CNC machining services for a wide range of materials including aluminum, steel, stainless steel, copper, brass, titanium, PEEK, PTFE, acetal, nylon, and other engineering plastics. Our manufacturing capabilities cover 3-axis, 4-axis, and 5-axis CNC milling, as well as CNC turning, suitable for both prototype development and high-volume production runs.

With ISO 9001:2015 certification and a commitment to quality, we serve customers across aerospace, automotive, medical, electronics, industrial equipment, and consumer goods industries. Our in-house capabilities include surface finishing, anodizing, powder coating, heat treatment, and inspection with CMM and optical measurement equipment.

We offer competitive pricing, flexible lead times, and full material traceability. From simple brackets to complex precision components, we deliver parts that meet your specifications with reliable quality and on-time delivery.

Case StudiesMore+

SLINAR - PEEK Slider Parts | CNC Milling for Medical and Aerospace Applications

PEEK Slider Parts | CNC Milling for Medical and Aerospace Applications-peek

Materials

PEEK

PEEK (CNC) is an engineering thermoplastic with excellent mechanical and thermal properties. Can be used to replace metal parts. Biocompatible.

Understand PEEK

Applications

Custom Medical

Custom orthopedic implants and spinal cages
Surgical instruments and handles to your design
Dental components and abutments
Cardiovascular device components
Sterilizable instrument bodies

Custom Aerospace

Bearing cages and bushings to your design
Seal rings and backup rings
Structural brackets and clips
Wire insulation and cable clamps

Custom Semiconductor

Wafer handling end effectors to your design
Chamber components and rings
Plasma-resistant parts
Test sockets and probe holders

Custom Oil & Gas

Downhole seals and backup rings to your design
Valve seats and wear rings
High-temperature connectors

Custom Automotive

Transmission thrust washers
Bearing retainers
High-temperature sensor housings

Capabilities

We specialize in custom CNC machining of PEEK parts manufactured to your exact specifications. Every order is unique—your design, your tolerances, your material, your finish. No minimum order quantity. We machine unfilled PEEK, 30% glass-filled PEEK, and carbon-filled PEEK. Equipment includes CNC milling and turning centers with precision temperature control. Sharp carbide tooling and high-pressure coolant are used. Tolerances held to ±0.02-0.05mm standard, ±0.01mm precision. Controlled environments for medical-grade PEEK. Material certifications and full traceability provided. ISO 9001:2015 and AS9100D certified.

Finishes

As-Machined

Standard finish for most PEEK parts
Tool marks visible, functional surface
Ra 1.6 – 3.2μm typical

Precision Finishing

Fine turning or milling with sharp tools
Ra 0.8μm achievable
Improved surface for sealing applications

Bead Blasting

Uniform matte texture
Removes tool marks
Common for medical and aesthetic parts

Polishing

High-gloss reflective finish
Used for wear surfaces and medical implants
Ra 0.4μm achievable

Technical Specs

Property	Unfilled PEEK	30% Glass-Filled PEEK	Carbon-Filled PEEK
Tensile Strength (MPa)	90-100	130-160	160-190
Modulus of Elasticity (GPa)	3.6	10.0	15.0
Elongation at Break (%)	30-60	2-5	1-3
Hardness (Shore D)	85	88	90
Density (g/cm³)	1.31	1.51	1.41
Continuous Service Temp (°C)	260	260	260
Biocompatibility	Yes	Yes	No

Parameter	Capability
Max Part Size (Milling)	2,000mm x 800mm x 600mm
Max Part Size (Turning)	600mm diameter x 1,500mm length
Standard Tolerance	±0.02 – 0.05mm
Precision Tolerance	±0.01mm
Surface Finish (As-Machined)	Ra 1.6 – 3.2μm
Surface Finish (Precision)	Ra 0.8μm

FAQs

What is custom PEEK CNC machining?

We produce PEEK parts to your specific design—your dimensions, tolerances, material, and finish. Every job is unique and built to your requirements.
What PEEK grades can you machine for custom orders?

Unfilled PEEK, 30% glass-filled PEEK, and carbon-filled PEEK. Unfilled and glass-filled grades are biocompatible.
What are the challenges of machining PEEK?

PEEK has a melting point of 343°C and poor thermal conductivity, so heat builds up during cutting and can cause melting. Sharp tools, positive rake angles, high spindle speeds, and efficient chip evacuation are required.
Is PEEK biocompatible?

Unfilled PEEK and glass-filled PEEK are biocompatible and meet ISO 10993 requirements for medical implants. Carbon-filled PEEK is not typically used in implant applications.
What is the typical lead time for custom PEEK parts?

Prototypes in 3-5 business days. Production orders in 10-20 business days.
Can PEEK be sterilized?

Yes, PEEK can be sterilized by autoclave, ethylene oxide, gamma radiation, and steam sterilization without degradation.

Services

Industries

Cases

Materials

Resources

Company

Custom PEEK

PEEK

PEEK

Custom Medical

Custom Aerospace

Custom Semiconductor

Custom Oil & Gas

Custom Automotive

As-Machined

Precision Finishing

Bead Blasting

Polishing

What is custom PEEK CNC machining?

What PEEK grades can you machine for custom orders?

What are the challenges of machining PEEK?

Is PEEK biocompatible?

What is the typical lead time for custom PEEK parts?

Can PEEK be sterilized?