A shaft looks like the simplest part on the drawing — a cylinder with features. But the shoulder that locates a bearing, the journal that runs in a bushing and the thread that sets preload decide whether the assembly runs true or wears out early.
Stepped diameters, shoulders, threads, keyways and cross-drillings in one flow — not split across three shops.
Critical diameters, runout and coaxiality measured on our Zeiss CMM, with reports per batch.
Stainless where corrosion rules, alloy steel where strength does, titanium and Invar where weight or expansion does.
Real capability windows — verified in-house, not estimated.
| Capability | Specification |
|---|---|
| Diameter range | Ø 2–65 mm · lengths to 300 mm |
| Typical parts | Drive shafts · pivot pins · precision spindles · actuator rods |
| Typical tolerance | ±0.005 mm typical where applicable · ±0.01 mm standard |
| Surface finish | Down to Ra 0.2 µm |
| Materials | Stainless · alloy and carbon steel · aluminum · titanium · Invar |
| Inspection | Zeiss CMM dimensional and geometric verification |
| 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