- Milling ±0.003 mm · turning ±0.002 mm · grinding + wire EDM ±0.002 mm
- 100+ machines: Mazak, Brother, TSUGAMI, Sodick, STAR, CITIZEN
- 3-axis, 4-axis and 5-axis milling; mill-turn; Swiss turning
- One-off prototypes to 10,000+ production runs, same inspection discipline
Capability is a feature, not a machine count
A shop with fifty machines can still fail your part if none of them is the right process for your geometry. Read capability the way an auditor does: by feature, by material, by volume. A thin wall in aluminum is a milling problem; a long small-diameter shaft is a Swiss-turning problem; a sharp internal corner is a wire-EDM problem. We state all three so you can match the feature to the process before you commit.
By process
| Process | What it holds | Envelope |
|---|---|---|
| CNC milling (3/4/5-axis) | Pockets, walls, threaded holes, five-sided parts in one clamping | ±0.003 mm |
| CNC turning & mill-turn | Round parts, single-setup mill-turn geometry | ±0.002 mm |
| Swiss (sliding-headstock) turning | Long, small-diameter parts with fine finish | ±0.002 mm |
| Precision grinding + wire EDM | Hardened materials, sharp corners, tight slots | ±0.002 mm |
The spread matters as much as the total: a part that starts as turned stock can move to 5-axis milling, then to grinding, without leaving our quality system. Fewer hand-offs means fewer places for tolerance to drift.
By volume
One part and ten thousand parts run through the same discipline. Prototypes carry a first-article report; production carries in-process checks. The tolerance promise does not get looser just because the quantity is one, and it does not get hidden just because the quantity is large.
The inspection bench behind it
Every lot ships with data tied to the feature, not to the drawing title block. Hexagon CMM for geometry, plus height gauges, roughness testers and thread gauges. Ask for a sample report before you order; if a shop hesitates to show one, that is the report format answering your capability question for you.
Five questions to read any shop's claims
Which feature, in which material, at what volume? What is the report format? What happens on a nonconformance? What is the rework rate on your part family? And who signs the FAI? If the answers are specific, you are talking to a capability. If they are general, you are talking to a brochure.
What is the difference between 3+2 and true 5-axis?
3+2 positions the part and machines at an angle; true 5-axis machines while tilting. For most complex parts 3+2 is cheaper and just as accurate — a good shop tells you which your part actually needs.
Can you hold ±0.003 mm on every feature?
On milling features, yes, where the geometry and material allow. Some features (deep pockets, thin walls) have limits set by the part, not the machine — we flag those in DFM rather than promising and then explaining.
Send the drawing and we will tell you which feature limits you — before you pay for it.
Send a 3D file to [email protected] · +86 13126536955
Standards referenced on this page
- ASTM B211/B211M-19 — Standard Specification for Aluminum-Alloy Rolled or Cold Finished Bar, Rod, and Wire
- ISO 9001 — Quality management systems — Requirements
- ASTM E8/E8M-21 — Standard Test Methods for Tension Testing of Metallic Materials