High Precision Zinc Alloy Cast Parts Manufacturing
Thin-wall precise casting, superior surface finish, full range of electroplating finishing available
Overview：We deliver one-stop zinc die casting solutions for electronics, automotive, hardware and industrial sectors. With in-house tooling workshop and full-range casting machines, we control tolerance within ±0.05 mm, maintain a production yield over 98%, and support monthly mass output up to hundreds of thousands of pieces. Using certified Zamak alloys compliant with RoHS & REACH, we provide complete surface finishing and strict quality inspection, ensuring stable quality, competitive cost and on-time delivery for your OEM & ODM projects.
Zinc alloy die casting is a precision metal forming process. Molten zinc alloy liquid is injected into precision die casting molds under high pressure and high speed, then cooled and solidified rapidly to form finished metal parts. It can mass-produce complex-structured, uniform-wall and high-precision metal components with high efficiency. Various surface finishing treatments are available, widely used in hardware accessories, electronic housings, auto parts and smart home hardware.
Advantage: Easy to form complex parts, cost-effective and friendly for various surface treatments.
Disadvantage: Poor heat resistance and lower strength than aluminum alloy.
Hot-Chamber Zinc Die Casting
| Alloy Grade | Key Features | Typical Applications |
|---|---|---|
| Zamak 3 | The most common grade; excellent castability, dimensional stability, and surface finish; balanced strength and cost. | Consumer electronics, hardware, connectors, general-purpose components |
| Zamak 5 | Higher copper content than Zamak 3; improved strength and hardness, good castability. | Automotive parts, structural components, parts requiring higher mechanical strength |
| Zamak 7 | High purity alloy; exceptional fluidity, ideal for ultra-thin walls and complex geometries; reduced intergranular corrosion risk. | Thin-wall parts, precision components, high-volume consumer goods |
| ZA-8 / ZA-12 | Higher aluminum content; superior strength and wear resistance compared to Zamak series. | Parts requiring high load-bearing or wear resistance (e.g., gears, bearings) |
Zinc die castings are highly compatible with a wide range of finishes, allowing you to achieve both functional protection and premium aesthetics:
🚫 Porosity & Air Pockets
✅ Optimized mold vent design, calibrated injection speed/pressure, and vacuum-assisted casting for high-density, leak-tight parts
🚫 Shrinkage Cavities
✅ Targeted mold cooling channels, strategic gate placement, and controlled pressure holding to eliminate voids
🚫 Flash & Burrs
✅ Precision tool manufacturing, regular mold maintenance, and post-casting deburring for clean edges
🚫 Cold Shuts & Flow Marks
✅ Strict metal/die temperature control, optimized gating systems, and consistent cycle time management
Strong In-House Capability
Full in-house process from mold design to production with our own equipment, enabling precision parts at competitive prices.
Versatile, Mature Casting Processes
Expertise in hot-chamber, cold-chamber, insert, and custom casting to suit all your part sizes and complexity needs.
Premium Alloy Materials
We adopt standard Zamak series zinc alloys with stable composition. All raw materials comply with RoHS and REACH, featuring reliable performance and full traceability.
High Strength & Good Ductility
Our zinc castings deliver outstanding mechanical strength and ductility. They resist deformation well and support further bending, tapping and assembly for diversified usage.
With reasonable structural design and compact casting process, it can meet daily waterproof and dustproof standards.
We produce food-contact and medical eco-friendly rubber products with relevant test reports available.
Under the same specification, zinc die casting has lower raw material and processing cost with higher cost performance for medium and small appearance parts.
We mass produce lead-free eco-friendly zinc castings with complete certificates to meet all European and American export standards.
Support custom precision zinc castings and bulk OEM production
Free casting solution design, material selection and accurate quotation
Application Industries: Consumer electronic hardware, smart home accessories, automotive interior hardware, security lock parts, bathroom hardware, toy hardware, instrument housings
Die casting housings
decorative hardware
rotating brackets
fasteners
shielding covers