ISO 9001 & ISO 13485 Certified Tangxia, Dongguan · China

CNC Turning Services

Precision turned parts from Ø1–46 mm bar stock, held to ±0.01 mm with an Ra 1.6 finish.

CNC turning is the core of what we do. Round parts that start life as bar stock — shafts, pins, spacers, bushings, threaded inserts, fittings — come off our lathes held to ±0.01 mm, with a surface finish of Ra 1.6 as standard.

Bar capacity runs from Ø1 mm to Ø46 mm, and the auto-feeding machines take up to Ø50 mm. Maximum workpiece length on the horizontal lathes is 1.5 m. Whether you need five prototypes or half a million production parts, the same machines and the same operators make them.

Typical CNC Turned Parts

Shafts & pinsStraight, stepped or grooved, with tight concentricity.
Threaded partsMetric, UNF/UNC, BSP and custom profiles.
Bushings & sleevesPress-fit, flanged or plain, with controlled bore tolerance.
Inserts & nutsKnurled, moulded-in or self-locking variants.
Spacers & standoffsCut to length with deburred, square ends.
Fittings & connectorsTurned bodies with cross-drilling and secondary milling.

Turning Capabilities

Bar capacity (CNC lathe)Ø1–46 mm
Auto-feeding bar capacityup to Ø50 mm
Max workpiece length (horizontal)1.5 m
Machining tolerance±0.01 mm standard
Surface roughnessRa 1.6
ConcentricityHeld across multiple diameters in a single setup
MaterialsBrass C3604/H62/H59 · Stainless 303/304/316 · Aluminum 6061-T6/6063/7075 · Carbon steel 20#/45#/12L14 · Engineering plastics
Surface finishingSandblasting, anodizing, blackening, zinc & nickel plating, polishing, passivation, electro-coating, PVD

What we need from you

A drawing is the fastest route — 2D with tolerances, or 3D STEP/IGES with a critical-dimension list. If you only have a sample, post it to us and we will reverse-engineer it and confirm the dimensions before quoting. If you have neither, describe the function and we will suggest a starting geometry.

Worth telling us up front: which dimensions are actually critical, what the part has to fit into, the annual volume, and whether it will be machined again later. Those four answers usually change the quoted process.

CNC Turning — Common Questions

What is your minimum order quantity for turned parts?
100 pcs per part number is our standard MOQ. Prototypes and first articles are accepted from 5–20 pcs so you can validate the part before committing to production.
How tight a tolerance can you hold?
±0.01 mm is our standard for turned parts. Where a tighter tolerance is genuinely needed, tell us which specific dimension matters — quoting every dimension at an extreme tolerance raises cost for no benefit.
Can you machine parts from my bar stock?
We normally source the material ourselves and supply the material certificate with the parts. If your specification calls for a material we cannot source reliably, we will tell you rather than substitute silently.
Can you hold a tolerance across two setups?
Yes, but it costs more. Where concentricity matters, we would rather run the part on a turn-mill machine and complete it in a single clamping — the reason to mention it at quotation stage.
Have a part drawing? Get a quote within 24 hours. Send a STEP, DWG, DXF or PDF file — or post us a sample. You will hear back from the engineers who will actually make the part. Request a Quote →