Permalloy Machining for Magnetically Sensitive Equipment
Permalloy's extremely high magnetic permeability makes it the go-to material for magnetic shielding and flux-path components in sensors, photomultipliers and precision instruments. Its magnetic performance, however, lives and dies by chemistry — small deviations in the Ni/Fe balance visibly shift the permeability curve.
Why equipment manufacturers choose us
Chemistry is the specification
Spectrometer verification of incoming Ni-Fe stock against the specified grade — because magnetic properties follow chemistry.
Machined with the right touch
Permalloy work-hardens; sharp tooling and correct parameters preserve both dimensional accuracy and material condition.
Traceable for your audits
Batch traceability, EN 10204 3.1 certificates and Zeiss CMM dimensional reports.
Permalloy Machining
Real capability windows — verified in-house, not estimated.
| Capability | Specification |
|---|---|
| Material | Permalloy-class Ni-Fe soft magnetic alloys |
| Typical tolerance | ±0.005 mm typical on machined features · confirmed per drawing |
| Surface finish | Down to Ra 0.2 µm |
| Processes | CNC milling, turning, Swiss-type |
| Inspection | Zeiss CMM + spectrometer chemistry verification |
| Certificates | ISO 9001:2015 · IATF 16949:2016 · EN 10204 3.1 |
| 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.