Aluminum Die Casting
Inox Die Cast is an aluminum die casting manufacturer producing housings, brackets, heat sinks and structural components directly from our Dongguan factory. Aluminum earns its place when a part must be light, stiff and able to move heat — and it keeps that place when the tooling, casting, machining and finishing all answer to one production team.
This page explains where aluminum die casting fits, how we help you choose an alloy, and what happens between your drawing and the first production shipment.
At a glance
- Light, stiff and thermally conductive — the default metal for housings
- A380, ADC12 and A413 families run on our cold chamber lines
- Controlled from ingot certificate to final measurement
- Typical programs: enclosures, heat sinks, brackets, telecom and automotive parts
What Aluminum Does Well in a Die Cast Part
Aluminum's strength-to-weight ratio is the headline. A cast aluminum bracket carries structural load at a fraction of the mass of steel, which is why the material dominates automotive mounts, motor housings and anything a person has to lift or a vehicle has to carry.
The second act is thermal behavior. Aluminum conducts heat well enough that a casting can be the heat sink — LED fixtures, motor controllers, telecom enclosures and power-conversion housings routinely cast the cooling fins straight into the part, removing an assembly step and a thermal interface.
Aluminum also holds its properties outdoors. With the right alloy and finish, castings resist corrosion in weather-exposed and washdown environments, which keeps it on the shortlist for infrastructure, appliance and industrial-equipment programs.
The trade-offs are real: aluminum runs in cold-chamber machines with longer cycle times than zinc, tooling sees more thermal stress, and very thin cosmetic walls ask for careful design. That is exactly the conversation our casting engineers have with you before steel is cut — factory-direct means those constraints shape the design early, when changing them is cheap.
How Aluminum Castings Are Controlled Here
Alloy ingots arrive with material certificates and are checked at incoming inspection. Melt temperature, injection parameters and cooling are monitored in-process at the machine, and castings are inspected against the control plan agreed at the tooling review — critical dimensions, surface zones and any feature your drawing flags.
Because the mold shop is in the same building, cavity wear and dimensional drift get corrected at the source. Certification scope documentation is available on request as part of your supplier evaluation.
Typical Aluminum Programs
Automotive brackets and housings that trade steel for mass savings; electronics and telecom enclosures that double as heat sinks; industrial-equipment frames and gearbox housings; appliance components that live near heat. If your part carries load, sheds heat or lives outdoors, aluminum is usually the first material we model.
Representative application illustration — not a record of a specific customer program.
Common Aluminum Die Casting Alloys Compared
Alloy selection is confirmed during engineering review against your part's function — this table shows the direction each common alloy pulls:
| Alloy family | Castability & thin walls | Strength character | Thermal & corrosion behavior | Typically chosen for |
|---|---|---|---|---|
| A380-type | Excellent general castability, fills complex geometry | Good all-round mechanical balance | Good thermal conductivity, acceptable corrosion resistance | General housings, brackets, covers — the default starting point |
| ADC12-type | Very good fluidity, friendly to thin sections | Similar balance to A380, widely available in Asia | Comparable thermal performance | High-volume consumer and appliance parts sourced in China |
| A413-type | Outstanding fluidity for intricate, pressure-tight parts | Moderate strength | Good corrosion resistance | Pressure-tight housings, complex thin-wall geometry |
Frequently Asked Questions
Which aluminum alloys do you cast?
Production runs common die casting alloys in the A380, ADC12 and A413 families, confirmed per project during the engineering review. We match the alloy to your part's structural, thermal and finishing needs rather than defaulting to whatever is in the furnace, and material certificates accompany production shipments.
Can aluminum castings be machined and finished in-house?
Yes — that is the point of the factory. Castings move to CNC machining for datum faces, threads and sealing surfaces, then to painting, powder coating or plating without leaving our quality system. One factory answers for the final part, not three vendors pointing at each other.
How thin can aluminum walls go?
It depends on the alloy, the flow length and where the wall sits relative to the gate. Rather than quoting a single number that may not survive your geometry, we review the 3D model and tell you which walls are comfortable, which need ribs or gating changes, and which should move to zinc if thinness rules the design.
Is aluminum or zinc cheaper for my part?
For larger structural parts aluminum usually wins on material cost per part; for small, high-volume precision parts zinc's faster cycles and longer tool life can make it cheaper overall. Our aluminum vs zinc comparison walks the decision factor by factor, and the quote will show the numbers for your specific geometry.
What is the minimum order for aluminum castings?
Production starts at 1,000 pieces. Tooling is quoted separately and stays in our plant for maintenance. If you are validating a design before committing to volume, tell us — sample and pilot arrangements are part of the normal project flow.
Where to Go Next
Aluminum project review
Test Your Aluminum Direction Against the Real Part
Share the drawing, the loads, the thermal picture and the finish you need. A casting engineer will confirm the alloy direction — or tell you plainly if zinc or machining suits the part better.