OEM Aluminum Die Casting Housings Manufacturer
- High precision with complex structures
- Excellent strength to weight ratio
- Excellent heat dissipation and electromagnetic shielding
- Cost effectiveness under mass production
- Applied for automotive, telecom, electronics, industrial control, new energy, etc
ISO 9001
Certified
IATF 16949 Certified
ISO 14001 Certified
ISO 45001 Certified
29+
Over 29 Years of Manufacturing Experience
9000
9,000 ㎡ Workshop
90%
90% of Orders Are Eported
Our Equipment Capabilities for Aluminum Die Casting Housings
Our Die Casting Equipment
Our CNC Machining Equipment
- 3 Sets of Horizontal Machining Centers: 4-axis, supports multi-side machining and double-station efficiency
- 4 Sets of Gantry Machining Centers: Designed for large-part machining, equipped with side milling heads
- 5 Sets of Vertical Machining Centers: 4-axis capability, stable for hard materials with through-spindle coolant
- 2 Sets of CNC Lathes: Handles medium to large shafts with reliable precision
- 1 Set of Vertical Lathe: Suitable for heavy disc-type parts, ensuring stability and accuracy
- 4 Sets of EDM Machines: Specialized for complex shapes and fine detail machining
Our Post-Processing Equipment
- Grinding: Remove sharp edges and casting burrs for safe handling.
- Polishing: Smooth surfaces for decorative or visible housings.
- Sandblasting & Shot Blasting: Improve surface texture and uniformity, prepare for coating.
- Heat Treatment: Enhance the strength, hardness, and overall durability of structural components.
- Powder Coating: Apply durable, corrosion-resistant finishes with uniform color and texture.
- Ultrasonic Cleaning: Thoroughly remove grease, dirt, and residues from complex surfaces for a pristine finish.
Our Squeeze Casting Process for Aluminum Housings Production
If you want to get high-performance and durable aluminum casting housings, try our squeeze casting process, which can achieve:
- Near-Zero Internal Porosity
- Excellent Sealing Performance
- High Mechanical Properties
- T6 Heat Treatment Available
Our Material Capabilities for Aluminum Die Casting Housings
Commonly Used Alloys for Aluminum Die Casting Housings
Material Selection Guide for Aluminum Die Casting Housings
✅ Recommended: AlSi7Mg (T6)
- High strength after heat treatment.
- Ideal for: Servo and controller enclosures.
- Why it works: Maintains rigidity with thinner walls.
For High Structural Strength
✅ Recommended: AlSi10Mg
- High thermal conductivity.
- Ideal for: LED and inverter enclosures.
- Why it works: Allows enclosures to dissipate heat directly.
For Thermal Management
✅ Recommended: AlSi10MnMg
- Supports the large, one-piece enclosure.
- Ideal for: Large EV battery enclosures.
- Why it works: Stable dimensions without heat treatment.
For Large Integrated Casting
✅ Recommended: ADC12 (A383)
- Excellent fluidity for thin sections.
- Ideal for: Compact electronic enclosures.
- Why it works: Ensures reliable filling and surface quality.
For Thin-Wall Complexity
✅ Recommended: AlSi12 Family
- Strong resistance to harsh environments.
- Ideal for: Outdoor and marine enclosures.
- Why it works: Improves durability and protection.
For Corrosion Resistance
✅ Recommended: A380
- Balanced strength and castability.
- Ideal for: Industrial and power enclosures.
- Why it works: Reliable for general-purpose designs.
For Balanced Performance
Our Post Surface Treatment Capabilities for Aluminum Die Casting Housings
We offer a series of surface treatments for aluminum die casting housings, and if you have unique surface requirements, feel free to contact us directly!
Powder Coating
Provides a durable, uniform protective layer for aluminum die casting housings, resisting scratches, corrosion, and wear.
Anodizing
Enhances corrosion resistance and surface hardness, ensuring long-lasting protection for aluminum die casting housings.
Spray Painting
Adds color and a smooth finish to aluminum die casting housings while providing moderate protection against corrosion and wear.
Shot Blasting
Creates a consistent matte surface on aluminum die casting housings, removes minor imperfections, and improves coating adhesion.
Electrophoresis
Applies a uniform, corrosion-resistant base layer on aluminum die casting housings and improves adhesion for further finishing.
Chromate Conversion
Forms a thin protective layer on aluminum die casting housings to prevent corrosion and support subsequent coating adhesion.
Our Quality Inspection Capabilities for Aluminum Die Casting Housings
Our Commitment to Global Standards
We apply ISO 9001, IATF 16949, ISO 14001, and ISO 45001 standards across all production stages to ensure consistent, high-quality aluminum die casting housings.
Internal Testing Instruments
- Coordinate Measuring Machine (CMM) with a measurement range of 800×1200×600mm and a Maximum Permissible Error (MPE) of 3.0μm
- Video Measuring System (VMS)
- Spectrometer
- Tensile Strength Testing Machine
- Hardness Tester
- X-Ray Machine for NDT (Non-Destructive Testing)
- Leakage Testing (Water Immersion Testing & Helium Leakage Testing
Design Support for Aluminum Die Casting Housings
DFM (Design for Manufacturability) Analysis
We emphasize early-stage DFM involvement to help customers optimize housing designs, identify potential pitfalls, and reduce production costs and lead time. Our team reviews part geometry, wall thickness, draft angles, and tolerances to ensure manufacturability and high yield.
Mold Design and Manufacturing
We offer a series of mold design and manufacturing services to ensure quality, precision, and fast response for your project:
- In-House Tooling: All molds are designed and built internally, ensuring full control without outsourcing.
- Mold Flow Analysis: Optimize filling, cooling, and defect prevention before production.
- Dedicated Mold Storage Area: Organized maintenance and secure storage for long-term use.
- Mold Life Commitment: Designed for hundreds of thousands of shots, with free maintenance and retooling when the tool reaches its service life.
Create Stable Value for Your Supply Chain
We deliver more than aluminum die casting housings – we provide a reliable manufacturing partnership that strengthens your entire supply chain.
Cost Optimization
We reduce total cost through early DFM integration, optimized gating and cooling design, and strict process control to lower scrap rates and minimize secondary machining.
Capacity Assurance
With 7 die casting machines (160T–1100T) and dedicated automated production lines, we produce 20k - 30k units monthly with stable 4 - 6 weeks lead time.
Reliable Material Supply
Aluminum ingots are sourced from certified domestic smelters with material certificates and are only stored after passing spectrometer inspection upon arrival.
Typical Achievable Tolerances for Aluminum Die Casting Housings
| Feature Size Range | As-Cast Tolerance | CT Grade | CNC Machined Tolerance |
| ≤100mm | ±0.10 ~ ±0.20mm | CT5 – CT6 | ±0.01 ~ ±0.05 mm |
| 100–300mm | ±0.20 ~ ±0.35mm | CT6 – CT7 | ±0.03 ~ ±0.08 mm |
| 300–600mm | ±0.35 ~ ±0.60mm | CT7 – CT8 | ±0.05 ~ ±0.12 mm |
| 600–1000mm | ±0.60 ~ ±1.00mm | CT8 – CT9 | ±0.08 ~ ±0.20 mm |
Aluminum Die Casting Housings Case Studies
Electronic Housing
- Material: A380
- Feature: Improved dimensional consistency and reduced machining cost by 20%.
Power Supply Housing
- Material: ADC12
- Feature: Enhanced thermal performance and reduced additional heat sink requirements.
Control Box Housing
- Material: A380
- Feature: Stable assembly fit and improved surface quality for automation systems.
Frequency Converter Housing
- Material: ADC12
- Feature: Reduced scrap rate, enhanced thin-wall casting stability in mass production.
Battery Housing
- Material: AlSi7Mg
- Feature: High-strength housing with reduced distortion and consistent batch quality.
Junction Box
- Material: A380
- Feature: Reliable environmental protection and stable long-term field performance.
FAQs About Aluminum Die Casting Housings
What dimensional tolerances can you achieve for aluminum die casting housings?
Achieving stable dimensional tolerances is critical for electronic and industrial housing assemblies. Poor tolerance control can lead to misalignment, leakage issues, and increased machining costs. Below is what you can typically expect from professional die casting manufacturers.
Standard die casting tolerance: ISO 8062 CT6–CT8 (depending on part size and geometry).
For most aluminum die casting housings:
- General tolerance: ±0.1 mm to ±0.3 mm
- CNC-machined features: ±0.01 mm to ±0.05 mm
- Flatness control for sealing surfaces: ≤0.1 mm
Thin-wall structures and complex geometries may require secondary CNC machining to guarantee tight assembly fits.
If you want to understand tolerance standards in detail, you can refer to:
When evaluating suppliers, always confirm whether tolerance is achieved as-cast or post-machining, as this directly impacts cost and lead time.
How do you control porosity in thin-wall aluminum die castings?
Porosity is one of the biggest technical risks in thin-wall die casting. It directly affects strength, sealing performance, and machining reliability. Controlling porosity requires more than just machine capacity — it depends heavily on process engineering.
Key methods include optimized gating design and strict process parameter control.
Typical control measures:
- Mold flow simulation before tooling production
- Optimized runner and overflow system
- Controlled injection speed & pressure curve
- Vacuum-assisted die casting (if required)
- X-ray inspection for critical structural parts
Thin walls below 2.5mm require a special filling strategy to avoid cold shuts and gas entrapment.
For a deeper technical understanding, you may read:
When discussing projects with suppliers, ask whether they conduct flow analysis before mold manufacturing — this is often a key difference between average and high-end manufacturers.
What is the typical lead time for die casting housings tooling and mass production?
Lead time directly affects your product launch schedule and inventory planning. Understanding realistic production timelines helps procurement teams reduce risk and avoid project delays.
Typical lead time ranges: 4–6 weeks for tooling, 3–5 weeks for mass production.
Breakdown:
- Mold design & DFM review: 5–7 days
- Tooling manufacturing: 20–30 days
- T1 sampling & adjustment: 7–10 days
- Mass production after approval: 3–5 weeks
Complex structural housings may require additional time for mold optimization.
For new product development planning, you may refer to the video below:
In-House Die Casting Mold Design and Manufacturing at CEX Casting
Always confirm whether the supplier handles tooling, machining, and surface treatment in-house, as outsourcing these processes can extend lead time by 2-3 weeks or more.
What aluminum alloys are best for aluminum die casting housings?
Selecting the right aluminum alloy affects strength, corrosion resistance, machinability, and overall cost. Engineers often balance mechanical performance with casting stability and price.
Common alloys: ADC12, A380, and AlSi7Mg, depending on structural requirements.
- ADC12 – Excellent castability, good cost-performance balance
- A380 – Stronger mechanical properties for industrial housings
- AlSi7Mg – Higher strength, suitable for structural housings
For structural battery or load-bearing housings, heat-treatable alloys like AlSi7Mg are preferred.
You can review material standards at:
Always confirm whether material certificates and spectrometer testing are provided by suppliers for traceability.
What surface finishes are available for aluminum die casting housings?
Surface finish impacts corrosion resistance, appearance, and sealing reliability. Industrial customers often require both functional and cosmetic consistency.
Common finishes include powder coating, anodizing, sandblasting, and chromate conversion.
Typical options:
- Powder coating (outdoor durability)
- Anodizing (improved corrosion resistance)
- Sandblasting (uniform matte texture)
- CNC sealing face machining for IP protection
For outdoor or harsh environments, coating thickness and adhesion testing are critical.
You may refer to:
Always confirm with suppliers if surface treatment is done in-house or outsourced.
How do you ensure material quality and traceability?
Material inconsistency can lead to porosity, cracking, or machining defects. Procurement and quality teams need full traceability for batch control.
Certified aluminum ingots with material certificates and spectrometer testing upon arrival.
Standard control steps:
- Purchase from certified domestic smelters
- Incoming spectrometer composition verification
- Batch labeling and traceability records
- Safety stock with planned procurement
For regulated industries, maintaining material traceability records is essential.
You can learn more about material verification at:
What is your monthly production capacity for aluminum die casting housings?
Production capacity directly affects supply stability and long-term partnership reliability. Buyers need predictable output to avoid supply chain disruption.
CEX Casting is equipped with 7 die casting machines (160T–1100T) with 20,000–30,000 housing units per month.
Capacity depends on:
- Part size and weight
- Wall thickness complexity
- Required machining processes
Dedicated aluminum die casting housing production lines help maintain stable 4–6 week lead times.
How long does a die casting mold typically last?
Tooling life impacts long-term cost per unit. Buyers should evaluate mold durability before large-volume production.
Typical mold life: 60,000–150,000 shots depending on alloy and structure.
Factors influencing mold life:
- Alloy type (AlSi7Mg may reduce life)
- Cooling system design
- Maintenance frequency
- Injection pressure settings
Preventive maintenance schedules significantly extend tooling life.
For further reading:
Can you provide CNC machining and assembly in-house?
Outsourcing secondary operations often increases lead time and quality risk. Integrated manufacturing improves consistency and delivery reliability.
Yes, CNC machining and basic assembly are completed in-house at CEX Casting.
In-house capability includes:
- Precision CNC machining
- Sealing face finishing
- Thread tapping and inserts
- Basic mechanical assembly
This reduces coordination delays and improves dimensional control.
How do you reduce scrap rate in mass production of aluminum die casting housings?
High scrap rates increase cost and delay deliveries. Process stability is critical for thin-wall industrial housings.
Optimized mold flow design and strict process parameter control.
Key methods:
- Flow simulation before tooling production
- Standardized injection parameters
- Real-time process monitoring
- Root cause analysis for defect prevention
Stable mass production depends on both engineering design and disciplined process control.
For more insights: