We machine aluminum parts and anodize them under one roof. Type II color, clear, hardcoat and conductive finishes on 6061, 7075 and 2024, held to ±0.005 mm with masking drawn to your print.
Most anodizing problems are decided long before the parts reach the tank.
An anodic layer grows into the surface as well as outward. Half the coating thickness sits below the original dimension. If the shop anodizes after final machining without accounting for that growth, a Ø10.00 mm bore comes back undersized and pins will not seat.
Two lots of the same 6061 alloy, anodized on different days, can come out a shade apart. Alloy temper, surface preparation time and bath age all move the color. Assemblies that mix parts from both lots look mismatched on the shelf.
Dyed coatings sit on a porous oxide layer. Deep tool marks, chatter and burrs show through every one of them. A finish will not cover a bad cut, and polishing after anodizing destroys the coating.
Threads, bearing bores, grounding pads and electrical contacts have to stay conductive. Masking that lifts in the tank lets coating creep onto those surfaces. Rework means stripping the whole part and starting again.
One process plan covers the cut, the coating and the final measurement.
Anodizing builds roughly half its thickness inward and half outward. A 20 μm Type II layer moves the surface about 10 μm. We machine to the pre-anodize dimension and leave that growth in the program, so the finished part lands on the drawing number.
For hardcoat, the growth is larger and the edge build-up is uneven. Corners and radii take coating faster than flat faces. We adjust for that on thin walls and on parts with tight bore-to-bore spacing.
A dyed finish reads the surface underneath it. Bead blasting gives a matte, even look. Brushing leaves directional lines that stay visible through clear anodizing. As-machined faces show every pass of the tool.
We agree the prep step with you before the parts run, because changing it later means stripping the coating. Laser marking is applied after anodizing so the characters stay legible, with a 1.5 mm minimum character height.
Pick by wear demand, color need and how tight the tolerance is.
| Type | Typical thickness | Best for | Watch out for |
|---|---|---|---|
| Type II clear | 5–15 μm | Housings, brackets, cosmetic panels | Sealing can lower conductivity |
| Type II color | 10–25 μm | Consumer and electronics enclosures | Color shifts between lots |
| Type III hardcoat | 25–50 μm | Wear faces, slides, valve bodies | Brittle on thin edges |
| Type II conductive | 5–10 μm | Grounding paths, mating faces | Masking must be precise |
Machining, finishing and inspection sit in the same 7,600 m² plant.
16 simultaneous 5-axis centers cut angled faces and contoured pockets in one setup, which keeps hole positions consistent across a batch.
27 three-axis machines and 16 mill-turn centers handle prismatic housings and turned shafts up to 4,000 mm.
One-off aluminum prototypes go through the same anodizing line, so the finish you approve is the finish you get in production.
Enclosures and panels formed from 5052 and 6061 sheet, then anodized for corrosion resistance and appearance.
Bead blasting, tumbling, brushing and polishing prepare the surface before the anodizing tank.
Serial numbers, logos and date codes marked after coating, minimum character height 1.5 mm.
Typical part families and the numbers behind them.
| Part family | Material | Finish | Key spec |
|---|---|---|---|
| Enclosure housings | 6061-T6 | Type II color | Wall 1.5 mm min |
| Bike stems and mounts | 7075-T6 | Type III hardcoat | Ø400 mm rotary work |
| Automotive brackets | 6061 / 6082 | Type II clear | ±0.005 mm |
| Keyboard plates and cases | 6061 / 6063 | Bead blast + color | Ra 0.8–1.6 μm |
| Sensor and valve bodies | 2024 / 7075 | Hardcoat, masked | Bores stay conductive |
| Robotic end-effector arms | 6061-T6 | Type II color | 4,000 mm max length |
Held on critical bores and mating faces, with coating growth included in the program.
Available on sealing faces and bearing seats before the coating goes on.
Quotation plus free DFM analysis inside 12 hours of receiving your files.
Tooling and material release can begin within one day of approval.
Standard machined and anodized lots leave the plant in this window.
Type II clear, Type II color, Type III hardcoat and conductive, all in house.
Brackets and housings need consistent color across high-volume lots and full traceability.
Enclosures require even bead-blast texture and marking that survives handling.
End-effector arms combine hardcoat wear faces with masked conductive mounting pads.
Slide rails and guides take hardcoat for abrasion resistance on long runs.
Roughly half the coating thickness grows inward and half outward. A 20 μm Type II layer moves the surface about 10 μm per side.
We machine to the pre-anodize size and build that allowance into the program, so the finished part matches the drawing.
6061, 6063, 6082 and 7075 all anodize reliably. 7075 tends to come out darker and slightly less uniform because of its copper content.
2024 gives an even less cosmetically consistent result. If appearance matters more than strength, 6061 is the safer choice.
Yes. Threads, bearing bores, grounding pads and electrical contacts can be masked so they stay conductive.
Send the mask areas marked on the drawing or as a separate layer. We confirm them before the parts run.
Hardcoat is brittle. On very thin walls, sharp edges and parts that see bending, the coating can chip at the corners.
It also builds more thickness, which complicates tight tolerances. For those parts, Type II is usually the better trade.
We work to a color chip or a physical sample you send. Bath chemistry, alloy and surface prep all shift the shade.
The closest match comes from running the same alloy and the same prep step on every lot.
There is no minimum. We run from a single prototype to 10,000+ part runs.
Prototypes go through the same anodizing line as production, so the approved finish carries over.
Coating thickness is checked on witness coupons and on the parts themselves. Critical bores and threads are gauged after coating, not before.
Reports are available on request.
Yes. Uploads are handled as confidential and we can sign your NDA or provide ours on request.
Drawings and CAD files stay with the project team.
Upload the print and tell us the anodizing type and color. We reply with price, lead time and a free DFM review.
12-hour quote100% inspectionNo MOQNDA on request
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Upload your 3D model or 2D drawing and get a quotation with a free DFM analysis. Maximum processing size 4,000 mm.
CNC Metals 13 grades
CNC Plastics 10 grades
Machines & processes 12 options
Surface & post-processing 10 options
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