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Capabilities

Swiss-Type Machining for Small-Diameter Precision Components

Long, thin, delicate turned parts are where Swiss-type machining earns its keep. Material feeds through a guide bushing so the cut always happens next to the support — keeping small diameters accurate, straight and beautifully finished.

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Why ProtoTech

Why equipment manufacturers choose us

Small diameters, real precision

Ø 0.5–20 mm with tight tolerances and surface finishes down to Ra 0.2 µm.

Stable on slender parts

Guide-bushing support keeps long, thin components accurate and chatter-free.

Documentation included

Dimensional reports, batch traceability and EN 10204 3.1 material certificates as standard.

Technical data

Swiss-Type CNC Machining

Real capability windows — verified in-house, not estimated.

CapabilitySpecification
Diameter rangeØ 0.5–20 mm
Typical tolerance±0.005 mm typical where applicable
Surface finishDown to Ra 0.2 µm
Part characterLong, slender and small precision turned parts
MaterialsStainless, brass, copper, aluminum, titanium, engineering plastics
InspectionZeiss CMM · batch traceability · EN 10204 3.1
Prototype lead timeTypically 5–10 working days

Materials we machine

Kovar®
Permalloy
Tungsten alloys
PEEK
PVDF
PTFE
Invar
Monel/Inconel
Carbon fiber
Stainless
Titanium
Aluminum
Engineering plastics
How we work

From Drawing to Delivered Part

A transparent, engineering-led process built for long-term supply programs — not one-off transactions.

1

Submit & Review

Send drawings and program context. Our engineers run a DFM review and flag tolerances, materials and risk before any cutting begins.

2

Quote & Material Plan

You receive a transparent quote plus a material-verification plan — grade, EN/DIN check and certificate strategy for your application.

3

Machine & Inspect

In-house precision machining, then Zeiss CMM dimensional inspection and spectrometer material verification on critical batches.

4

Deliver & Support

Kitted, ESD-safe or ISO Class 7 cleanroom packaging, with local engineering and after-sales support through our German partner.

Turned and shaft work

Below are examples of this kind of work held to our standard tolerance and finish. Dimensions, drawings and material certificates are available on request.

Long slender shaft with a machined groove and a stepped end
Long slender shaft with a machined groove and a stepped end
Gear and impeller cluster with cut teeth and profiled blades
Gear and impeller cluster with cut teeth and profiled blades
Shaft with a knurled grip section and a brass fitting
Shaft with a knurled grip section and a brass fitting
FAQ

Frequently asked questions

Small-diameter, high-precision turned parts — especially long, slender components that would deflect in conventional turning. The guide bushing supports the material right at the cutting zone.
Ø 0.5–20 mm. For larger round parts, our conventional CNC turning covers Ø 2–65 mm.
Yes — ±0.005 mm typical where applicable, verified on our Zeiss CMM for geometry and position, the TRIMOS V5 height gauge for heights and steps, and the AI-Vision system for fine features with documented reports per batch.
Start a project

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

Recurring programs and orders of 1,000+ pcs are prioritised by our engineering team.
The number of parts per order — it lets us price tooling and batch setup correctly instead of guessing at a range.
Several different parts? Email your list and drawings to ellie@prototech-machining.com and we will quote them together.
e.g. 120 pcs · 6061-T6 aluminium · black anodise · mates with bracket PT-1042
Built for qualified programs.
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.
Need engineering input first?
Talk to our team about special materials, tolerances or a failed-supplier recovery before you send drawings.
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