Material Verification Before Machining
A certificate tells you what the mill claims. A spectrometer tells you what the metal is. We verify incoming stock chemistry before it reaches a machine — which matters most for alloys whose performance depends on composition, such as Kovar and Permalloy.
Why equipment manufacturers choose us
Chemistry checked at the door
Incoming stock is verified on our benchtop spectrometer against the specified grade and EN/DIN number.
Critical for performance alloys
Kovar's expansion behavior and Permalloy's permeability both depend on composition — a drift that is trivial elsewhere changes performance here.
Certificate and metal agree
Verification means the certificate in your file matches the material in your part.
Material Verification
Real capability windows — verified in-house, not estimated.
| Capability | Specification |
|---|---|
| Method | Benchtop raw-material spectrometer (in-house) |
| Checked against | Specified grade and EN/DIN number |
| Typical materials | Kovar · Permalloy · stainless · tungsten heavy alloy · aluminum · titanium · brass |
| Timing | At incoming inspection, before machining |
| Documentation | EN 10204 3.1 certificates · batch traceability |
| Complementary | Zeiss CMM dimensional inspection |
| Quality system | ISO 9001:2015 (GICG) |
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.