High-Pressure Aluminum Die Casting for Mass Production
Aluminum Die Casting is the most efficient manufacturing method for producing high-volume, lightweight metal components with complex geometries. By injecting molten aluminum into hardened steel molds under high pressure, this process achieves excellent dimensional stability and thin walls that other casting methods cannot match.
At JUCHENG, we provide a complete aluminum casting solution—from mold design and flow analysis to casting, CNC post-machining, and surface finishing. Our facility utilizes advanced Cold Chamber Die Casting Machines ranging from 200 tons to 2,500 tons. Whether you need 1,000 heat sinks or 500,000 automotive transmission housings, we deliver porosity-controlled, high-strength parts ready for the assembly line.
At JUCHENG, we provide a complete aluminum casting solution—from mold design and flow analysis to casting, CNC post-machining, and surface finishing. Our facility utilizes advanced Cold Chamber Die Casting Machines ranging from 200 tons to 2,500 tons. Whether you need 1,000 heat sinks or 500,000 automotive transmission housings, we deliver porosity-controlled, high-strength parts ready for the assembly line.
Aluminum Die Casting
JUCHENG’s Aluminum Casting Ecosystem
We don't just cast metal; we manage the entire lifecycle of the part:
- Cold Chamber Technology: Our machines isolate the molten aluminum furnace from the injection system, minimizing iron contamination and ensuring high alloy purity.
- Precision Tooling: We design molds with optimized cooling channels and overflow wells to minimize porosity and extend mold life (typically 80k - 100k shots).
- CNC Post-Machining: Castings often require precise threads or sealing surfaces. Our in-house CNC shop mills sealing faces and taps holes to tolerances of ±0.01mm.
- Surface Finishing: Raw castings have a "skin." We offer Shot Blasting (to remove flash and unify texture), Powder Coating, Anodizing, and Chromate Conversion for corrosion protection.
- Leak Testing: For fluid handling parts (pumps, valves), we perform 100% pressure decay testing to ensure hermetic seals.
Product Gallery Categories
LED Lighting Housings
Automotive Power/Transmission
Telecommunication Enclosures
Thin-Wall Electronics
Precision Machined Castings
Materials Available
Common Aluminum Casting Alloys
We cast standard international alloys optimized for flow and strength:
| Alloy Grade | Characteristics | Typical Applications |
| A380 (USA) | The most common alloy. Excellent fluidity, pressure tightness, and resistance to hot cracking. | General purpose housings, brackets, electrical boxes, gear cases. |
| ADC12 (Japan/China) | Similar to A380 but slightly better filling capabilities. High strength and good machinability. | Automotive components, electronic device frames, complex thin-wall parts. |
| AlSi9Cu3 (Europe) | The European standard. Good strength retention at high temperatures. | Engine parts, heat exchangers. |
| A360 | Superior corrosion resistance and pressure tightness compared to A380. | Marine parts, outdoor enclosures, pump bodies. |
Comparison
When is Die Casting the right choice?
| Feature | High-Pressure Die Casting | CNC Machining | Sand / Gravity Casting |
| Volume | High (>2,000 units) | Low to Medium | Low to Medium |
| Tooling Cost | High (Steel Mold) | Low (Fixtures) | Low (Sand Pattern) |
| Unit Cost | Lowest | High | Medium |
| Surface Finish | Good (Ra 1.6-3.2) | Excellent (Ra 0.8) | Rough (Sand texture) |
| Wall Thickness | Thin (1-3mm possible) | Variable | Thick (>4mm) |
| Tolerances | Good (+/- 0.05mm) | Excellent (+/- 0.01mm) | Loose (+/- 0.5mm) |
Why Choose Us
The JUCHENG Foundry Advantage
- Porosity Control: We utilize vacuum-assisted casting and squeeze casting options for parts that require zero porosity or need to be heat-treated/welded.
- One-Stop Shop: Most foundries only cast. We cast, trim, CNC machine, impregnate, paint, and assemble under one roof, reducing your logistics headache.
- Tooling Life Management: We perform regular maintenance on your dies (cleaning vents, polishing cores) to ensure the 50,000th part looks as good as the 1st.
- DFM Support: We advise on draft angles, wall thickness transitions, and ejector pin locations to lower tooling costs and improve part quality.
Advantages
Benefits of Aluminum Die Casting
- Lightweight: Aluminum is 1/3 the weight of steel, critical for fuel efficiency in automotive and handling in handheld devices.
- High Conductivity: Excellent thermal conductivity makes it the ideal process for mass-producing heat sinks.
- EMI/RFI Shielding: Naturally blocks electromagnetic interference, essential for electronics enclosures.
- Complex Net Shapes: Can produce complex 3D shapes with ribs and bosses that would be expensive to machine from solid blocks.
Industries Served
Industries Powered by Aluminum Castings
- Automotive (EV/ICE): Battery housings, inverter cases, motor mounts, gearbox shells.
- Lighting (LED): Heatsinks for streetlights, architectural downlights, stadium lighting.
- Telecommunications: Base station heatsinks, filter boxes, microwave component housings.
- Power Tools: Chainsaw bodies, drill casings, pneumatic tool handles.
- Renewable Energy: Solar inverter housings, wind turbine components.
Request Your DFM & Quote – Upload Your Drawings
ㆍFill in your requirements and upload your 2D&3D file, we will feedback your project quotation and DFM within 24 hours.ㆍFile types: STEP, STP, IGES, IGS, SLDPRT, 3DM, SAT or X_T files File size: < 128 MB Part size: < 1500*1500*1500 mm
ㆍPrivacy: We respect your privacy. Here you can find an example of a non-disclosure agreement. By submitting this form, you agree to our terms & conditions and privacy policy.
ㆍPrivacy: We respect your privacy. Here you can find an example of a non-disclosure agreement. By submitting this form, you agree to our terms & conditions and privacy policy.
