SERVICES
PEEK Injection Molding
We mold PEEK (and compatible grades) for functional, structural and aesthetic parts — from low-volume bridge production to high-volume runs.
WHAT WE OFFER
What We Offer
HOW IT WORKS
From Inquiry to Delivery
CHALLENGES
Challenges This Service Solves
FAQ
PEEK Injection Molding — FAQ
Can you help with product development?
Yes. From design review and material selection to prototyping, tooling and mass production — our engineers support you through the entire product lifecycle.
Do you ship internationally?
Yes. We ship worldwide via air and sea freight, with export packing, documentation and delivery tracking handled by our team.
What quality inspections do you perform?
First article inspection, dimensional measurement, material verification and surface checks — with inspection reports provided per batch. Full details are agreed before production.
What is the difference between rapid and production tooling?
Rapid tooling uses softer materials and simplified construction for fast, low-cost validation runs (hundreds to low thousands of parts). Production tooling uses hardened steel for high-volume, long-life programs.
How long does injection mold making take?
Rapid tooling prototypes can be ready in days; production tooling typically takes several weeks depending on complexity, cavity count and steel grade. We confirm a detailed schedule with your quotation.
Do you provide DFM feedback?
Yes. Every quotation includes a design-for-manufacturing review: draft angles, wall thickness, gate and weld-line locations, tolerance recommendations and cost-saving suggestions — before any tooling is cut.
What file formats do you accept?
We accept STEP, IGES, STL, X_T and 2D drawings (PDF or DWG). A 3D model lets us quote most accurately; 2D drawings are used to confirm critical tolerances and specifications.
How do I get a quote?
Upload your 3D file (STEP, IGES, STL or X_T) through the quote page, or email it directly. Our engineers review the design, run a DFM check and send you a detailed quotation — usually within one business day.
RELATED SEARCHES
What Buyers Search
* Keywords from Semrush competitor data — one page per search intent.
PEEK: The Ultra-High-Performance Thermoplastic
Property data per FirstMold's PEEK page (https://firstmold.com/peek-injection-molding/); MOLDITQUICK runs PEEK on all-electric Sodick machines with closed-loop temperature control.
Continuous service at 260 °C with short-term tolerance to 300 °C — the highest of melt-processable thermoplastics.
Tensile strength 90–100 MPa and about 4× the wear resistance of PTFE.
Low shrinkage (0.1–0.5 %) with a thermal expansion coefficient close to aluminum — dimensionally stable across temperature.
Biocompatible — FDA-certified grades used in long-term implants without rejection.
Cryogenic resistance — retains strength down to −60 °C.
Chemical resistance — survives strong acids (except concentrated H₂SO₄) and organic solvents.
Radiation resistance — PEEK tolerates gamma sterilization and nuclear environments, useful in medical and aerospace.
Low outgassing — suitable for semiconductor vacuum and cleanroom applications.
PEEK Processing Parameters We Control
Windows per FirstMold's PEEK processing data (https://firstmold.com/peek-injection-molding/); melt stability is the difference between a good and a scrap PEEK part.
| Parameter | Recommended Range | Why It Matters |
|---|---|---|
| Barrel temperature | 340–400 °C (FirstMold: 360–400 °C) | Melt must stay hot and stable; deviations of even ~2 °C can cause crystallization and embrittlement. |
| Mold temperature | 150–200 °C (typical 160–180 °C) | Hot molds prevent cold slugs and promote crystallinity for maximum strength. |
| Mold shrinkage | 0.1–0.5 % | Very low and predictable — close to metal-like dimensional stability. |
| Melt stability | ±1.5 °C closed-loop control | FirstMold reports first-shot success above 92 % on thin-wall PEEK with all-electric machines. |
| Drying | 150 °C, ~3 h | PEEK absorbs little moisture, but surface moisture must be driven off before molding. |
Cost & Process Realities of PEEK
What makes PEEK expensive — and how we keep the cost under control (https://firstmold.com/peek-injection-molding/).
Material cost is high
PEEK resin costs multiples of engineering plastics — part design, gating and scrap control decide the bill.
- Net-shape molding
- Minimal runner waste
- Regrind strategy with supplier approval
Tooling must run hot
Molds run at 150–200 °C with hot runners and hardened steel; cold slugs destroy quality.
- Hot runner systems
- High-temperature mold steel
- Modular PEEK-dedicated designs
Processing demands precision
A 2 °C deviation can crystallize and embrittle an entire batch — machines must hold ±1.5 °C.
- All-electric presses
- Closed-loop temperature
- First-shot success 92 %+
Alternatives when budget bites
PEKK needs only 10–15 °C more than PEEK; PEI (Ultem) covers continuous use to 170 °C at medium cost.
- PEKK upgrade path
- PEI for sub-170 °C service
- PPS for heat and chemical balance
Surface & tolerance control
PEEK parts hold tight tolerances with 0.1–0.5 % shrinkage; we verify with first-article measurement.
- 0.1–0.5 % shrinkage
- First-article verification
- GD&T reporting
PEEK vs PEI: Which High-Temperature Resin Fits?
Where PEEK Injection Molding Pays
Aerospace
Satellite components, oil seals and high-load bushings that must keep properties above 200 °C.
Medical
Surgical instruments, minimally invasive tools with walls under 0.1 mm, and FDA-certified implantable components.
Semiconductor
Wafer carriers, chamber components and high-temperature process hardware.
Oil & gas
Deep-well exploration seals rated to 150 MPa pressure.
Robotics & industrial
Joint and wear components where creep resistance and self-lubrication beat metal.
Automotive & motorsport
High-temperature seals, thrust washers and sensor components under the hood.
Downhole & subsea
Insulators, connectors and seals that face high pressure and aggressive fluids.