Custom Aluminum Die Casting for OEM Parts | KastMfg

Custom aluminum die casting is used when a buyer needs repeatable, near-net-shape metal parts with better production economics than machining from billet. KastMfg produces custom aluminum die cast components from customer drawings, 3D models, and application requirements.

We support OEM programs from early DFM review through tooling, sampling, production, CNC machining, finishing, inspection, and export packaging.

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Good Fits for Custom Aluminum Die Casting

Part Requirement	Why Aluminum HPDC Fits
Medium to high volume	Tooling cost is amortized over repeat production
Complex housing geometry	Ribs, bosses, covers, and walls can be cast near-net-shape
Machined interfaces	Casting provides the blank; CNC finishes datums, bores, and threads
Thermal management	Aluminum supports heat sink and electronics housing applications
Lower weight than zinc or steel	Useful for mobility, electronics, and handheld equipment

If your part is still early in design, start with die casting DFM guide.

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Alloy Selection

Alloy	Common Use
A380	General-purpose aluminum die casting with strong castability
ADC12	Common export alloy for industrial and automotive components
A360	Better corrosion resistance and thermal conductivity
A413	Strong castability for thin walls and pressure-tight features

KastMfg can recommend an alloy after reviewing mechanical, thermal, corrosion, machining, and cost requirements.

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Typical Custom Part Features

• Thin walls and reinforcing ribs
• Mounting bosses and threaded holes
• Bearing seats and precision bores
• O-ring grooves and sealing faces
• Heat sink fins
• Cable entry bosses
• Assembly tabs and alignment features
• Cosmetic exterior surfaces

Features that require tight tolerance are usually CNC machined after casting.

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From Drawing to Production

KastMfg's process for custom aluminum parts:

1. Review drawing and 3D model
2. Identify casting risks and machining requirements
3. Quote tooling, samples, and production pricing
4. Build and trial the die casting mold
5. Inspect first samples
6. Correct tool or process if required
7. Release to production after buyer approval

For timing, see die casting tooling lead time.

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Custom aluminum die casting inquiry: yaoqingpu1983@gmail.com | +86 138 1403 4409 | No.6, Rungu Road, Nanjing, China