Aluminium Enclosures for 3C Digital and Consumer Electronics

Consumer electronics is a volume game with a cosmetic finish requirement, which is a hard combination. The enclosure has to look premium on a retail shelf, fit an automated assembly line to a few microns, and land at a unit cost that survives the channel margin. Our answer is the polish-free route plus tight cut-to-length: less finishing cost, and parts that drop straight into your line without a sizing operation.

What makes this enclosure difficult

These are the failure modes we see most often in this application — and the ones we design against from the first section drawing:

• Unit cost pressure at high volume. Every unnecessary finishing operation is multiplied by the run size.
• Automated assembly cannot absorb dimensional drift. A case that is 0.2 mm long jams the fixture.
• Cosmetic consistency on retail shelves. Colour and texture variation is visible when units sit side by side.
• Product cycles are short. Tooling has to pay back inside a single generation.

How we handle it

Polish-free 6063 removes a whole operation

Filtered, degassed and homogenised primary billet gives a surface fine enough to go straight to 180# blasting and anodising. Removing the polishing stage typically saves around 15% of finishing cost — at consumer volumes that is the difference between winning and losing the programme.

±0.005 mm cut-to-length

Cases arrive at length and drop into the fixture. Most customers find they can remove an in-house sizing step entirely, which saves more than the per-piece cost difference.

Tooling that pays back inside one generation

New die in 4–5 days and samples in 7 days, with three rounds of free sampling. Short development cycles mean you can commit to tooling later in the design process, after the enclosure geometry is actually frozen.

2-tonne tooling waiver for scaling programmes

If a single order reaches 2 tonnes the tooling fee is fully waived — relevant when a product moves from an initial run into a full-scale launch.

Family tooling across a product range

Where several models share a design language, we often propose one die with different cut lengths and machining programmes. Send the family and we will flag where this is possible.

Capability that matters here

Parameter	Typical capability	Why it matters
Cut-to-length accuracy	±0.005 mm	Direct feed into automated assembly
Inner / outer diameter tolerance	±0.04 mm	PCB and connector fit without hand selection
Wall thickness	From 0.3 mm	Light, stiff, material-efficient
Finishing route	180# blast + anodise, no polishing	Around 15% lower finishing cost
Tooling to first sample	4–5 days / 7 days	Fits short product cycles
Annual capacity	3,500 t profile / ~500,000 enclosures	Scales with a launch

Typical parts we make for this industry

• External SSD and portable hard drive enclosures
• Docking station and USB hub cases
• Power bank and wireless charger shells
• Bluetooth speaker bodies
• Streaming and capture device housings
• Compact desktop accessory chassis

Material and finish

6063-T5 for almost all 3C shells — it gives fine section detail, a uniform anodised finish and the lowest finishing cost. 6061-T6 only where the shell carries load or threaded connections under stress.

Our polish-free 6063 route runs primary billet from a state-owned mill through ceramic filtration, degassing and homogenising, so the profile goes straight to 180# blasting and anodising with no polishing stage — typically around 15% less finishing cost. We deliberately do not take high-pressure die-casting work; all capacity goes into extruded profile and precision machining.

Questions buyers in this industry ask

Can you handle a launch volume that scales quickly?

Yes. Two automated extrusion lines, 30 CNC centres and 10 stamping presses give us roughly 3,500 tonnes of profile and 500,000 enclosures a year. For a firm forecast we can hold extruded stock at our 3,000 m² warehouse and release machined batches on call, which is the usual way to handle a ramp.

Is the tooling fee waived at high volume?

Yes — when a single order reaches 2 tonnes the tooling fee is fully waived. For anything below that, we quote the tooling cost and the piece price together so you can see the break-even before committing.

How fast can we get samples for a design review?

New die in 4–5 days, samples in 7 days, and three rounds of free sampling are included. That means you can usually go from drawing approval to a physical sample inside two weeks, including the DFM review at the start.

Where we ship these

Other industries we serve