Tight Tolerance CNC Machining, Verified In-House
Tight tolerances are a process discipline, not a machine brochure spec. Thermal stability, fixturing, tool wear control and measurement strategy all have to agree — and then the result has to be proven, on a CMM, not assumed.
Why equipment manufacturers choose us
Real numbers, not marketing
±0.005 mm typical where applicable, ±0.01 mm standard on simultaneous 5-axis — stated per feature, per drawing.
Measured, documented, shipped
Zeiss CMM inspection with dimensional reports on critical features, batch after batch.
Tolerance consulting up front
Our engineers flag tolerance stacks and measurement risks during DFM — before they become scrap.
Tight Tolerance CNC Machining
Real capability windows — verified in-house, not estimated.
| Capability | Specification |
|---|---|
| Typical tolerance | ±0.005 mm typical (3-axis) · ±0.01 mm standard (simultaneous 5-axis) |
| Surface finish | Down to Ra 0.2 µm |
| Measurement | Zeiss CMM with documented dimensional reports |
| First article | Full first-article inspection before series release |
| Material verification | Spectrometer chemistry check against EN/DIN grades |
| Certificates | EN 10204 3.1 on request |
| Prototype lead time | Typically 5–10 working days |
Materials we machine
From Drawing to Delivered Part
A transparent, engineering-led process built for long-term supply programs — not one-off transactions.
Submit & Review
Send drawings and program context. Our engineers run a DFM review and flag tolerances, materials and risk before any cutting begins.
Quote & Material Plan
You receive a transparent quote plus a material-verification plan — grade, EN/DIN check and certificate strategy for your application.
Machine & Inspect
In-house precision machining, then Zeiss CMM dimensional inspection and spectrometer material verification on critical batches.
Deliver & Support
Kitted, ESD-safe or ISO Class 7 cleanroom packaging, with local engineering and after-sales support through our German partner.
Frequently asked questions
Request a Quote
Tell us about your program. The fields below help our engineering team prioritize recurring, long-term supply programs with equipment manufacturers.
What happens after you send your files
- Within 1 business day an engineer — not a salesperson — reviews your drawings and replies.
- DFM review: tolerances, material and risk flags, before any cutting begins.
- Your quote includes a material-verification plan: grade, EN/DIN check, certificate strategy.
Critical features are verified in house · material chemistry confirmed by spectrometer · EN 10204 3.1 certificates available.
Prefer email? Write to us directly at info@prototech-machining.com
Our form captures production type, annual quantity and project status up front — so we can focus engineering resources on long-term supply relationships, not one-off inquiries.
Talk to our team about special materials, tolerances or a failed-supplier recovery before you send drawings.