Custom PEEK CNC Machining Services

We stock and machine various grades of PEEK to meet specific application requirements. Material certifications (RoHS, REACH, and CoC) are available upon request.

Our CNC Machining Capabilities for PEEK

PEEK has low thermal conductivity and is sensitive to temperature changes, which requires strict control of machining parameters during the CNC machining process to avoid problems such as surface roughness, warpage, and dimensional deviation. Our team has rich experience in PEEK machining and is proficient in optimizing machining parameters for different grades of PEEK, ensuring stable and reliable processing quality.

5-axis CNC machining center milling a PEEK gear

CNC Milling PEEK

Suitable for processing complex-shaped PEEK parts, such as housings, brackets, gears, and structural components.

Precision CNC machined natural PEEK spur gears showcasing tight tolerance gear teeth and smooth surface finish.

CNC Turning PEEK

Used for processing cylindrical PEEK parts, such as shafts, bushings, and valves.

Precision CNC turned natural PEEK flanged bushings and insulating sleeves, showcasing smooth surface finish and precise internal bores.

Custom Processing PEEK

According to the customer’s 2D/3D design drawings, we provide one-stop custom processing services, from material selection, parameter setting to finished product inspection, to meet the specific needs of different industries.

Precision CNC milled natural PEEK mounting brackets featuring counterbored holes, flat mating surfaces, and semi-circular cutouts for equipment assembly.

What is PEEK (Polyether Ether Ketone)

Polyetheretherketone (PEEK) is a high-performance semi-crystalline thermoplastic belonging to the PAEK family, widely used in various industrial fields due to its excellent comprehensive properties. Unlike standard commodity plastics, PEEK maintains its structural integrity and physical properties even when continuously exposed to temperatures up to 260°C (500°F). Because of its high tensile strength and stiffness, it is often utilized as a lightweight replacement for machined metal parts in demanding environments where weight reduction and corrosion resistance are critical.

Property Virgin PEEK 30% GF PEEK 30% CF PEEK Bearing Grade PEEK
Density[g/cm³] 1.30 – 1.32 1.51 – 1.53 1.38 – 1.41 1.44 – 1.46
Tensile Strength [MPa] 95 – 110 150 – 165 180 – 210 85 – 100
Flexural Modulus [GPa] 3.8 – 4.2 10.0 – 11.0 13.0 – 18.0 6.0 – 7.5
Heat Deflection Temp [°C, @ 1.8 MPa] 152 315 315 250
Continuous Use Temp [°C] 260°C (500°F) 260°C (500°F) 260°C (500°F) 260°C (500°F)
Coefficient of Linear Thermal Expansion [10⁻⁵ /°C] 4.5 – 5.0 1.5 – 2.2 1.0 – 1.5 3.0 – 3.5
Key Characteristics  Highest purity, toughness, and FDA compliance. High structural rigidity and reduced thermal expansion. Maximum strength, stiffness, and load-bearing capacity. Lowest friction coefficient and excellent wear resistance.
CNC Applications Medical implants, semiconductor components, seals. Structural housings, thermal insulators, valve parts. Aerospace gears, thrust washers, high-load brackets. Bushings, bearings, cam rollers, friction guides.

Note: Reference and material selection purposes. Specific properties may vary slightly depending on the exact material manufacturer.

FAQs About CNC Machining Services

Standard lead times are typically 10–15 business days. Expedited services (Rapid Prototyping) can be completed in as little as 3–5 business days, depending on part complexity and material availability.

In most cases, we source materials from our approved suppliers to ensure quality control. However, we can machine customer-supplied materials for specialized alloys or specific requirements upon engineering review.

Unless otherwise specified, our general tolerance standard is ISO 2768-m (±0.125 mm) for metals and ±0.25 mm for plastics. Precision tolerances ±0.005 mm are achievable but must be explicitly stated in 2D technical drawings.

Our facility can accommodate parts up to 4000 x 1500 x 600 mm for milling and Ø200 mm x 500 mm for turning.

Yes. We can install inserts (e.g., Helicoils, PEM fasteners) and perform basic mechanical assembly of machined components prior to shipment.

To provide an accurate quote, we require a 3D CAD file (STEP, IGES, or X_T format). If the part has threaded holes, tight tolerances, or specific surface finish requirements, a 2D PDF drawing must also be provided.

We take IP protection seriously. All files are stored securely, and we are willing to sign a Non-Disclosure Agreement (NDA) prior to receiving your data.

Yes. We can provide material certificates (COA) and dimensional inspection reports upon request. Please specify this requirement when placing your order.

We ship globally using major carriers (DHL, FedEx, UPS). Shipping terms are typically Ex Works (EXW) or DAP, depending on the agreement.

Start your manufacturing project today

No Minimum Order Quantity (MOQ). Strict quality control. Fast global shipping.