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Processes we run

CNC Machining Capabilities

The processes we run, what each is for, and how they combine on parts that need more than one of them.

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FAQ

Frequently asked questions

Most prismatic parts go on a 3-axis machining centre; housings, manifolds and brackets with faces on several sides are often better on a 5-axis machine; round parts go on CNC turning, and slender small-diameter parts on Swiss-type turning. Send the drawing and the quantity and ProtoTech will confirm the route and the process route with it.
Metals are held to +-0.005 mm in 3-axis milling. Engineering plastics, alumina ceramic and graphite are held to +-0.01 mm, and that figure is confirmed per part rather than assumed.
Yes. PEEK (unfilled, CF30, GF30 and HPV grades), PVDF, PTFE, VESPEL, POM, ABS and carbon-fibre composites are all machined in our own plant. Note that a Ra 0.2 um finish is achievable on metals but not on plastics.
No. Anodizing, passivation, plating and coating are placed with qualified subcontractors close to the plant, selected for environmental compliance. Quality and delivery responsibility stay with ProtoTech.
Within one business day of receiving the files. An engineer - not a salesperson - reviews your drawing for manufacturability, tolerances and risk, and returns the material and process plan with the price.
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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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