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Automotive Aluminum Die Casting Parts – Lightweight, High Strength, Precision
Alloys: ADC12 / A380 / AlSi9Cu3 / AlSi12Fe
Process: High Pressure Die Casting (HPDC)
Locking Force: ≤800 tons | Part Weight: ≤10 kg
Product Description
Wuxi Hengzhihui Metal Materials Co., Ltd. produces high‑quality aluminum die casting components for automotive applications, including structural, powertrain, thermal management, and chassis/suspension parts. With advanced cold‑chamber die casting machines up to 800 tons clamping force, we specialize in small‑to‑medium sized automotive castings weighing less than 10 kg – the ideal range for engine brackets, transmission housings, oil pans, motor housings (EV), pump bodies, heat sinks, and mounting brackets.
All our automotive castings are manufactured using ADC12, A380, AlSi9Cu3, or AlSi12Fe alloys, selected to meet the demanding requirements of mechanical strength, thermal stability, corrosion resistance, and fatigue life in modern vehicles (including electric vehicles).
Why Die Cast Aluminum for Automotive Parts?
| Requirement | How Die Casting Delivers |
|---|---|
| Weight reduction | Aluminum density ~2.7 g/cm³ – up to 60% lighter than steel or cast iron |
| High productivity | Fast cycle times (30‑60 sec per shot) – ideal for high‑volume automotive production |
| Complex geometry | Thin walls, ribs, bosses, and undercuts can be cast near‑net shape |
| Dimensional consistency | Repeatable within IT11‑13, or tighter with secondary CNC |
| Cost efficiency | Reduces multiple assembled parts into one casting – lower total cost |
Available Alloys – Automotive Applications
| Alloy | Key Properties | Typical Automotive Applications |
|---|---|---|
| ADC12 | Good fluidity, pressure tightness, machinability | Engine brackets, valve covers, oil pans, water pump housings, alternator housings |
| A380 | High strength, excellent corrosion resistance | Structural parts, steering components, electronic control unit (ECU) housings, EV motor end caps |
| AlSi9Cu3 | Improved high‑temperature strength, good fatigue resistance | Transmission housings, oil pump bodies, turbocharger supports, suspension brackets |
| AlSi12Fe | Low copper, reduced die soldering, very good corrosion resistance | Thin‑wall structural parts, heat shields, EV battery cooling plates (non‑structural) |
We also offer custom alloy adjustments within your specification (e.g., lower Cu for better corrosion, higher Si for fluidity).
Typical Automotive Castings We Produce (≤800T / ≤10kg)
| Component | Approx. Weight | Recommended Alloy | Key Features |
|---|---|---|---|
| Engine mounting bracket | 1.2 – 3.5 kg | ADC12 / A380 | Ribbed design, high stiffness |
| Oil pan (small engine) | 2.5 – 5.5 kg | ADC12 / AlSi9Cu3 | Pressure‑tight, integrated oil level sensor boss |
| Transmission housing (small) | 4.0 – 8.5 kg | AlSi9Cu3 | High strength, good thermal stability |
| Water pump housing | 0.6 – 1.8 kg | ADC12 / A380 | Complex internal passages, leak‑tested |
| EV motor end cap | 1.0 – 4.0 kg | A380 | High thermal conductivity, EMI shielding |
| Battery cooling plate (EV) | 1.5 – 6.0 kg | AlSi12Fe | Thin‑wall, corrosion resistant, flatness controlled |
| Suspension control arm (small) | 2.0 – 5.0 kg | AlSi9Cu3 | High ductility, fatigue resistant |
| ECU / sensor housing | 0.2 – 1.0 kg | A380 | Shielding, tight tolerances, IP rated |
All parts can be supplied as‑cast, machined (CNC turning/milling), or with surface treatment (shot blast, powder coat, anodizing, e‑coating).
Production Capabilities – Automotive Grade
| Parameter | Our Capability |
|---|---|
| Machine range | 80T, 180T, 280T, 400T, 500T, 630T, 800T |
| Max injection speed | Up to 8 m/s (4‑stage injection control) |
| Pressure build‑up time | |
| Monitoring system | VMES + Omron PLC with electronic rulers – full traceability |
| Heat treatment (optional) | T5 / T6 (subcontracted with certification) |
| Impregnation (porosity sealing) | Available for pressure‑tight applications (e.g., oil pans, pump housings) |
| CNC machining | 3‑axis / 4‑axis / 5‑axis milling, CNC turning – tolerance ±0.01 mm |
| Surface finishing | Shot blasting, vibratory finishing, powder coating, anodizing, e‑coating |
Quality Assurance for Automotive Parts
We follow strict quality control procedures suitable for Tier 1 and Tier 2 automotive suppliers:
Incoming material: Spectrometer analysis for each alloy heat (ADC12, A380, etc.)
First Article Inspection (FAI): Complete dimensional report using ZEISS CMM
In‑process: Hardness, porosity (visual + optional X‑ray), and sampling for mechanical properties
Final: 100% critical dimension check, pressure leak test (if required)
Documentation: Material certificates, dimensional reports, PPAP level 3 (on request)
We can prepare PPAP (Production Part Approval Process) documents including control plan, FMEA, capability studies, and IMDS submission upon customer request.
Why Choose Wuxi Hengzhihui for Automotive Casting?
✅ Specialized in ✅ 800T max capacity – Suitable for most engine and transmission components under 10 kg.
✅ Four alloys always in stock – ADC12, A380, AlSi9Cu3, AlSi12Fe – no material delay.
✅ Automotive quality systems – In‑house CMM, spectrometer, and optional PPAP.
✅ One‑stop service – Casting → heat treatment → CNC machining → impregnation → coating.
✅ Competitive tooling cost – Molds made in‑house or with long‑term partners, amortized over production volume.
✅ Export experience – We ship to Europe, North America, Asia, Middle East.
Request a Quote
Please provide your drawing (2D/3D), annual quantity, alloy preference, and any specific standards (e.g., IATF 16949? We work with certified subcontractors for PPAP). We will respond with a competitive price and lead time.
Contact: Alice Yuan
Phone / WhatsApp: +86 15106174543
Email: yjhtrade@gmail.com
Website: www.hzhmetals.com | www.wuxihengzhihui.com
Wuxi Hengzhihui Metal Materials Co., Ltd. – Precision aluminum die casting for automotive, LED lighting, and industrial applications.
Send Inquiry to This Supplier
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