CNC Machined Parts
CNC Turning Parts
CNC turned parts in metal and plastic — shafts, bushings, fittings and threaded components turned and, where needed, mill-turned in a single setup. Tolerances to ±0.025 mm on marked diameters, MOQ 1 piece, free DFM and quote within 24 hours.
Turned parts look simple on a drawing and go wrong in predictable places: a thread that will not gauge, a bore and an outside diameter that are each in tolerance but not concentric, a finish on a sealing face that leaks under pressure. These are process problems, not drawing problems — and they are exactly what an experienced turning shop controls. HAFO Mould turns shafts, bushings, fittings and threaded components in its own Dongguan factory, with milling, mill-turn, EDM and CMM inspection in the same building, since 2007. Send your drawing; an engineer reviews it free and we quote within 24 hours. Our turning shop runs 15 CNC lathes and covers rotational parts up to Ø500 mm in diameter and 1,500 mm in length — from single prototypes to repeat production batches.
Upload Your Drawing — Free DFM + Quote Within 24 Hours. We accept STEP, STP, IGES, STL, X_T and 2D PDF drawings. All files are treated as confidential; NDAs are welcome.
Since 2007 · 5,000 m² factory · 80 staff, 35 engineers · Turning, milling and mill-turn under one roof · 3 fully automatic CMMs · ISO 9001:2015 certified — scope: Manufacturing of Hardware Molds and Parts · Parts shipped to customers in the US, Germany, France, Portugal, Sweden and Spain.
Turned Parts We Make
- Shafts and spindles — stepped shafts, pins and arbors with ground-fit diameters and keyways or flats added in the same order
- Bushings, sleeves and spacers — thin- and thick-wall parts where bore-to-OD concentricity is the dimension that matters
- Fittings and connectors — hydraulic, pneumatic and fluid fittings with machined or tapped metric and imperial threads, sealing faces and hex or knurled sections
- Threaded components — studs, inserts, threaded adapters and custom fasteners in small and medium batches
- Valve and pump components — stems, seats, bodies and covers in stainless and brass
- Nozzles, rollers and wheels — profiled parts with grooves, tapers and contoured faces
- Turned plastic parts — POM, PA, PTFE, PEEK and UHMW bushings, insulators and seals where molded tolerances are not enough
Turned and Milled in One Setup
Many real parts are not purely turned: the shaft needs a milled flat, the fitting needs a cross-hole, the bushing needs a keyway slot. Moving such a part from a lathe to a separate milling machine — or worse, to a second supplier — stacks up location error and lead time. We complete these parts in-house: mill-turn operations where the geometry allows a single setup, and our 3, 4 and 5-axis machining centers 5-Axis CNC Machining Parts in the same shop where it does not. The turned and milled features are located against the same references and inspected on the same CMMs, so the relationship between them is measured, not assumed.
Wire EDM and EDM, also in-house, cover the features turning cannot: internal keyways, narrow slots and hardened-steel detail.
Our free DFM review is where turned-part cost gets honest attention. Engineers check the items that quietly drive price: lengths many times the diameter (deflection risk), deep small-diameter bores, thread specifications that could be simplified without changing function, grooves narrower than standard tooling, and surface finishes specified tighter than the application needs. You receive the feedback in writing with your quote, within 24 hours.
Materials We Turn
Metals:
- Stainless steel 303 / 304 / 316 — 303 is the free-machining grade and the economical default for high-volume fittings and shafts; 304 for general corrosion resistance; 316 for marine, chemical and washdown service
- Aluminum 6061 / 7075 / 6063 / 6082 — lightweight shafts, spacers and housings; 7075 where strength matters
- Carbon steel 1018 / 1045 and alloy steel 4140 — machine shafts, pins and structural turned parts
- Brass — the classic fitting material: fast to machine, clean threads, good sealing behaviour
- Copper — electrical and thermal components
- Titanium and magnesium — available; machining approach and cost confirmed per drawing in the DFM review
Engineering plastics:
- POM — the standard for turned bushings, gears and precision plastic components
- PA (nylon), PTFE, PEEK — wear, sealing and high-temperature applications
- ABS, PC, PMMA, PP, UHMW — turned prototypes and low-volume parts where molding is not yet justified
Mixed order? A turned stainless fitting and its milled aluminum housing can be quoted, produced and inspected as one job Stainless Steel CNC Turned & Milled Parts. Grade comparisons live in our material notes Materials hub.
Tolerances
We turn to ISO 2768-mK as the default standard when a drawing carries no general tolerance block. Quoted tolerance levels:
Level | Metal | Plastic | Metal (in) | Plastic (in) |
|---|---|---|---|---|
Standard | ±0.13 mm | ±0.25 mm | ±0.005 in | ±0.010 in |
Precision | ±0.025 mm | ±0.05 mm | ±0.001 in | ±0.002 in |
Precision callouts belong on the diameters and faces that locate, seal or slide: bearing journals, press-fit bores, thread gauges, sealing lands. Because a turned part is generated in one rotation, diameters produced in the same chucking hold their concentricity naturally — tell us which runout or concentricity values your assembly needs and the DFM review confirms how we will hold and measure them. Background reading: CNC Machining Tolerances Explained: Standard vs. Precision.
Surface Finishes for Turned Parts
- As-turned — fine turned finish, standard for functional surfaces
- Passivation — restores the corrosion-resistant layer on stainless after machining; recommended for most stainless turned parts
- Polishing — smooth, bright faces for sealing, sliding or visible surfaces
- Bead blasting and brushing — uniform matte or directional finishes
- Plating — nickel, chrome or zinc, plus electroless nickel for even coverage on threads and recesses
- Black oxide — dark, low-build finish where specified on steel
- Anodizing, including hardcoat — for aluminum turned parts
Finishes that add thickness are planned into the machining allowance — important on threads and press fits, where a coating can change the fit. State the finish on your drawing and the DFM review confirms dimensions after finishing.
Specifications
Item | Value |
|---|---|
Processes | CNC turning, mill-turn, plus 3/4/5-axis milling, wire EDM, EDM, drilling & tapping in-house |
Materials | Stainless 303/304/316, aluminum 6061/7075/6063/6082, carbon steel 1018/1045, alloy steel 4140, brass, copper, titanium, magnesium; POM, PA, PTFE, PEEK, ABS, PC, PMMA, PP, UHMW |
Standard tolerance | ±0.13 mm (±0.005 in) metal / ±0.25 mm (±0.010 in) plastic, ISO 2768-mK |
Precision tolerance | ±0.025 mm (±0.001 in) metal / ±0.05 mm (±0.002 in) plastic on marked dimensions |
Max part size | Turned diameters and lengths confirmed against your drawing in the DFM review; our CNC machine travel extends to 800 mm (31.5 in) |
Lathes | 15 CNC lathes, including live-tooling turning centers |
Maximum turning diameter | Ø500 mm (19.7 in) |
Maximum turning length | 1,500 mm (59 in) |
MOQ | 1 piece |
Inspection | CMM, dimensional and material reports available; FAI on request |
Lead time | Depends on part complexity, quantity and finish — confirmed in your quote; expedited production available on request |
Shipping terms | DDP, EXW or FOB; payment by T/T |
Quality and Inspection
HAFO Mould is ISO 9001:2015 certified (scope: Manufacturing of Hardware Molds and Parts). Turned parts are checked against your drawing before packing; critical diameters, threads and concentricity features are measured, and our metrology lab runs 3 fully automatic CMMs. Available with your order on request:
- CMM inspection report
- Dimensional inspection report
- Material certificate
- Surface finish certificate
- First Article Inspection (FAI) report
- Pre-shipment photos or video of your actual parts
See how inspection runs across all our processes on the Quality & Inspection page. Mark the features your assembly depends on — they will be measured and reported, not just machined.
How Ordering Works
- Send your files. Upload your 2D drawing or 3D file with material, quantity, thread and finish details. NDAs are welcome — ask and we sign before you share anything sensitive.
- Free DFM + quote within 24 hours. An engineer reviews manufacturability — slenderness, bore depth, thread spec, tolerances — and we quote with the approach and lead time confirmed in writing.
- Production. Your parts are turned in our Dongguan factory; progress photos or video available on request.
- Inspection and reports. Parts are measured against the drawing; the reports listed above are supplied when requested.
- Shipping. Packed and shipped on DDP, EXW or FOB terms — we regularly deliver to the US, Germany, France, Portugal, Sweden and Spain. Payment by T/T.
Why Buyers Order Turned Parts from HAFO
- Factory-direct, no middleman. You speak to the factory that turns your parts — no platform markup and no order passed down a chain of workshops.
- Turning, milling and molding under one roof. The turned component, its milled housing and, later, its molded counterpart Custom Injection Molded Parts can all come from one accountable supplier.
- An engineer reviews every RFQ. Thread, fit and finish callouts are checked by the people who will run the job — before you pay for mistakes.
- Small batches treated seriously. A single prototype shaft gets the same DFM review and inspection as a repeat production order.
FAQ
What turned parts do you make most often?
Shafts, bushings, spacers, fittings, threaded adapters, valve components and turned plastic parts such as POM bushings and PTFE seals. If it is rotational in shape — or mostly rotational with milled features — it belongs on this page; send the drawing and the DFM review confirms the route.
Can you turn and mill the same part?
Yes. Parts needing a turned profile plus flats, cross-holes or keyways are completed in-house, by mill-turn in one setup where geometry allows, or across our in-house machining centers where it does not — located from the same references either way.
What tolerances can you hold on turned parts?
Standard ±0.13 mm (±0.005 in) on metal and ±0.25 mm (±0.010 in) on plastic under ISO 2768-mK; precision ±0.025 mm (±0.001 in) on metal and ±0.05 mm (±0.002 in) on plastic where marked — bearing journals, press fits, sealing faces. Concentricity and runout requirements are confirmed in the DFM review and verified on CMM.
Which materials do you turn?
Stainless 303, 304 and 316; aluminum 6061, 7075, 6063 and 6082; carbon and alloy steels; brass, copper, titanium and magnesium; and plastics including POM, PA, PTFE, PEEK and UHMW. Bar-stock availability for your grade is confirmed with the quote.
Can you cut internal and external threads?
Yes — metric and imperial threads, machined or tapped, internal and external. If your drawing's thread specification is unusual or tighter than the application needs, the DFM review will flag it; simplifying a thread callout is a common way to cut turned-part cost.
What is the largest part you can turn?
Turning capacity depends on diameter and length together, so we confirm it against your drawing in the DFM review rather than publishing a single number. Our overall CNC machine travel extends to 800 mm (31.5 in); long, slender shafts are assessed for deflection and support before we quote.
Is there a minimum order quantity?
No. MOQ is 1 piece — prototypes, spares and replacement parts for existing equipment are normal orders. Unit price simply reflects setup shared across your quantity, and the quote shows pricing at the quantities you give us.
Can you hold concentricity between a bore and an outside diameter?
Yes — this is a natural strength of turning, since both surfaces are generated in one chucking. Tell us the concentricity or runout value your assembly needs; we confirm the approach in the DFM review and report the measured result when inspection reports are requested.
How fast will I get a quote?
Within 24 hours of receiving your files, following a free engineering DFM review. The written quote confirms material, tolerance approach, finish and lead time.
How long is production lead time?
It depends on part complexity, quantity and finish, so it is confirmed in the quote rather than published generically. If a machine is down and you need spares urgently, say so in the RFQ — expedited production is available on request.
What inspection reports can I get?
CMM reports, dimensional reports, material certificates, finish certificates and FAI reports on request, plus pre-shipment photos or video of your parts before they are packed.
Can you sign an NDA?
Yes. NDAs are welcome, and all files are treated as confidential whether or not an NDA is in place.
Related guides: How to Get an Accurate CNC Machining Quote · CNC Machining Tolerances Explained · CNC Machined Parts hub
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