PEEK material at YiguProto
PEEK machined or molded by YiguProto

Material

PEEK — CNC Machining Materials

PEEK is a high-performance plastic. We machine it into parts that beat metal in heat and weight.

Overview

What Is PEEK CNC Machining?

PEEK is a high-performance plastic. We machine it into parts that beat metal in heat and weight.

Material: PEEK

PEEK (Polyetheretherketone) is a premium engineering plastic. It resists extreme heat, chemicals, and wear.

Process: CNC Machining

Computer-controlled mills and lathes cut a solid block into a precise part.

Result: Precise Finished Parts

Tight-tolerance parts for prototypes or production, finished to your drawing.

Specifications

PEEK Engineering Data

Typical reference values for PEEK through cnc machining. Final numbers can vary with grade and part shape.

PropertyTypical Value
Material typePEEK (Polyetheretherketone)
Manufacturing processCNC Machining
Density1.32 g/cm³
Tensile strength90–100 MPa
Service temperature−50 to 250 °C
Standard finishesPolishing, coating, texturing

Values are typical reference data and may vary with grade, heat treatment, and part geometry. Tell us your needs and we will confirm exact specs.

Why PEEK

Why Choose PEEK for CNC Machining

Very Heat Resistant

Keeps strength up to 250 °C.

Chemical Resistant

Fights acids, solvents, and steam.

Wear Resistant

Low friction and long life.

Light vs Metal

Strong but much lighter than steel.

Material Options

PEEK Grades & Options

We stock common grades. Tell us your need and we will pick the right one.

Natural PEEK

The standard high-performance grade.

PEEK-GF (30%)

Glass-filled for stiffness.

PEEK-CF

Carbon-filled for strength.

How It Works

How We Make Your PEEK Part

From your file to a finished part in five clear steps. Start with a free quote.

Send Files & Get a Quote

Upload your STEP or STL file and drawings. Get a clear, factory-direct quote with free DFM feedback, usually within 24 hours.

Design Review (DFM)

Our engineers check wall thickness, tolerances, and features. We suggest changes that save cost and improve quality.

CNC Milling & Turning

We cut your part from a solid block with mills and lathes in our machine shop.

Deburr & Finish

We remove burrs, then apply the finish you need, such as polishing or plating.

Inspect & Ship

We measure and inspect each part, then pack and ship worldwide with full tracking.

Applications

Where PEEK Is Used

Aerospace Parts

Light, heat-proof components.

Medical Implants

Biocompatible, sterilizable.

Oil & Gas

Seals and parts for harsh service.

Semiconductor

Pure, stable tooling parts.

Design Tips

Easy Design Tips for Beginners

New to this process? These simple rules help your part turn out well and cost less.

Respect Minimum Wall

Keep walls thick enough to stay rigid. Thin areas can vibrate and warp during cutting.

Plan for Tolerances

Tight tolerances cost more. Only specify them where the function needs them.

Add Chamfers & Radii

Small chamfers and radii help tools last longer and parts look cleaner.

Finishes

Surface Finishes for PEEK Parts

As Machined

The natural milled surface. Good for most functional parts.

Polishing

A smoother, brighter surface for looks or low friction.

Plating

Nickel, chrome, or other coatings for corrosion or wear protection.

Passivation

A chemical treatment that boosts corrosion resistance on some metals.

Why YiguProto

A Trusted Manufacturing Partner

We are a dedicated factory for cnc machining. Every file is reviewed by engineers before production. Every part is inspected before shipping. Your designs stay private with us.

< 24h
Quote turnaround
No MOQ
One part or thousands
±0.005 mm
CNC tolerance
Free
DFM design review

FAQ

PEEK — Frequently Asked Questions

PEEK (Polyetheretherketone) is a premium engineering plastic. It resists extreme heat, chemicals, and wear.
CNC machining uses computer-controlled mills and lathes to cut a solid block into a precise part. It is fast, repeatable, and ideal for tight tolerances.
PEEK is a high-performance plastic. It resists extreme heat, chemicals, and wear, and is biocompatible.
PEEK reaches about 90–100 MPa tensile strength and holds up to 250 °C. Strong enough to replace metal in many parts.
Send us your files. Most quotes return within a few hours on workdays. We never take more than 24 hours.
There is no strict minimum. We make a single prototype or a full production run.
Yes. We treat all files and ideas as confidential. We sign NDAs when you need them.
Yes. Our engineers review your design and suggest changes that cut cost, improve quality, or speed up delivery.
Polishing, coating, and texturing.
Yes — we hold tolerances down to ±0.005 mm on CNC machining.
Yes. We can make samples for your approval. The sample cost is credited back on a production order.

Ready to Make Your PEEK Part?

Send your 3D file and get a factory-direct quote with free DFM feedback within 24 hours.

Get a Quote Or email sales@yiguproto.com