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CNC Machining Precision Components | Custom Manufacturing

Sub-±0.005 mm CNC machining, prototype to production

Tolerance±0.005 mm
Max envelope800 × 600 × 500 mm
Lead time5–15 days
MOQ1 piece
Price$0.50–50
MOQ100 pcs
Lead time2-4 weeks

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Overview

Mechpart delivers high-precision CNC turned and milled components engineered to the most demanding tolerances in the industry. Our ISO-certified facility handles everything from one-off prototypes to full-scale production runs of 100,000+ units, working across aluminum alloys (6061, 7075), stainless steel (304, 316L), titanium (Ti-6Al-4V), brass, and engineering plastics. Every component undergoes in-process inspection with CMM verification traceable to international standards, ensuring dimensional accuracy down to ±0.005mm and surface finishes as fine as Ra 0.4μm.

Our CNC precision parts serve mission-critical applications across aerospace (engine brackets, actuator housings, landing gear components), medical devices (surgical instrument bodies, implant fixtures, diagnostic equipment chassis), automotive (EV powertrain spacers, sensor mounts, valve bodies), and robotics (joint assemblies, end-effector mounts, drivetrain components). We routinely produce complex geometries including undercuts, deep-hole drilling, multi-axis contours, and tight-tolerance threading that many shops decline—backed by full material certifications and PPAP documentation when required.

Why do procurement managers in 12+ countries choose Mechpart? Because we combine 15 years of CNC expertise with a transparent, engineer-to-engineer workflow: you upload a 3D file (STEP/IGS/X_T), receive a DFM review within 24 hours, and track your order through our online portal from blank to finished part. No hidden surcharges, no minimum-order games—just precision machining backed by an on-time delivery rate of 98.6%. Request your quote today and experience manufacturing that meets the standard, not the excuse.

Technical specifications

Machining processes3/4/5-axis milling, turning, Swiss, EDM, grinding
Linear toleranceISO 2768-f / down to ±0.005 mm
Surface roughnessRa 0.4–3.2 µm (mirror polish on request)
Max part size800 × 600 × 500 mm (milling) · Ø300 × 500 mm (turning)
Min feature size0.5 mm wall · Ø0.5 mm hole
Repeatability±0.002 mm
InspectionZeiss CMM, Keyence vision, FAIR / PPAP on request
Volume1–100,000+ pcs

Process capabilities

5-axis simultaneous milling

Complex geometries, undercuts and contoured surfaces in a single setup.

Swiss-type turning

High-volume small precision parts down to Ø0.5 mm with tight concentricity.

Wire & sinker EDM

Sharp internal corners, hardened tool steels and intricate cavities.

In-house grinding

Flatness and surface finish for sealing and bearing surfaces.

Materials & finishes

Surface finishes

As-machinedBead blastAnodize (clear/hard/color)Black oxideElectroless nickelZinc / chrome platingPassivationPolishing

Quality & certifications

  • Incoming — material certification & spectrometer verification on every lot.
  • In-process — dimensional checks at each operation with calibrated instruments.
  • First article — full CMM report, FAIR / PPAP available on request.
  • Final — visual, dimensional & surface-finish inspection with documentation.
ISO 9001:2015IATF 16949AS9100DISO 14001ISO 13485

Typical applications

Aerospace

Brackets, housings, actuator bodies, landing-gear components.

Medical

Surgical instrument bodies, implant fixtures, diagnostic housings.

Automotive / EV

Powertrain spacers, sensor mounts, valve bodies.

Robotics

Joint assemblies, end-effector mounts, drivetrain parts.

Frequently asked

What tolerances can you hold?

Standard ISO 2768-f; critical features down to ±0.005 mm with CMM verification on every order.

What file formats do you accept?

STEP, IGES, SLDPRT, X_T, DWG/DXF and PDF drawings. Native CATIA / NX / Inventor also accepted.

Do you offer DFM feedback?

Yes — free manufacturability review flagging thin walls, deep pockets and stress risers before cutting.

What is your typical lead time?

Prototypes 5–10 business days; small batches 2–3 weeks; expedited service available.

Customer reviews (2)

5.0/ 5 · 2 verified
★★★★★

Tight tolerances, every time

We have ordered three batches of 5-axis machined housings. CMM reports came back within +/-0.005mm as promised. Fast communication and the DFM feedback saved us a redesign.

M Marcus HoffmannMechanical Engineer, Bavaria Automation
★★★★★

Reliable for production runs

Scaled from 50 prototypes to 2,000 units with no quality drift. On-time delivery and clear documentation on every shipment.

E Elena PetrovaProcurement Lead, NordTech Systems

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