PEEK is the engineering polymer you reach for when metals fail: chemical attack, high continuous temperatures, electrical insulation or weight. But plastic is not 'easier to machine' — it moves, creeps and melts differently than metal, and tooling must respect that.
Sharp tool geometry, controlled heat and clamping pressure tuned for polymers — not metal parameters applied to plastic.
PEEK's thermal expansion is several times that of metals; we account for it in the measurement strategy and inspection conditions.
ESD-safe and cleanroom packaging for components destined for wafer equipment and analytical instruments.
Real capability windows — verified in-house, not estimated.
| Capability | Specification |
|---|---|
| Material | PEEK (unfilled, glass- and carbon-filled grades) |
| Typical tolerance | ±0.01 mm standard; ±0.005 mm where the material allows |
| Temperature capability | Continuous service ~260 °C (grade-dependent) |
| Chemical resistance | Excellent across aggressive media |
| Processes | CNC milling, turning, Swiss-type |
| Packaging | ESD-safe / cleanroom options |
| Prototype lead time | Typically 5–10 working days |
A transparent, engineering-led process built for long-term supply programs — not one-off transactions.
Send drawings and program context. Our engineers run a DFM review and flag tolerances, materials and risk before any cutting begins.
You receive a transparent quote plus a material-verification plan — grade, EN/DIN check and certificate strategy for your application.
In-house precision machining, then Zeiss CMM dimensional inspection and spectrometer material verification on critical batches.
Kitted, ESD-safe or cleanroom packaging, with local engineering and after-sales support through our German partner.
Tell us about your program. The fields below help our engineering team prioritize recurring, long-term supply programs with equipment manufacturers.
Every critical dimension is verified on our in-house Zeiss CMM · material chemistry confirmed by spectrometer · EN 10204 3.1 certificates available.
Prefer email? Write to us directly at info@prototech-machining.com