Zinc Die Casting: Process & Advantages

Zinc die casting is a high-efficiency manufacturing process where molten zinc is injected into precision steel molds under intense pressure (typically 1,500-4,000 psi) to produce dimensionally stable components.

Key Process Steps:

1. Melting – Zinc alloys reach fluid state at ~385°C (lower than aluminum)
2. Injection – Hot-chamber machine forces metal into mold cavity
3. Solidification – Rapid cooling ensures fine-grained microstructure
4. Ejection – Automated system removes finished parts

Widely used in automotive hardware, electrical connectors, and consumer electronics due to its exceptional EMI shielding properties and 100% recyclability.

Technical Edge: Our zinc die casting services deliver:
• ±0.025mm tolerances
• 15-second cycle times
• Zamak #3/#5 alloy expertise

Advantages of Zinc Die Casting

• Zinc has a very high casting fluidity. That is why you can achieve a thinner wall section if you use zinc casting.
• Zinc die cast requires a minimum amount of machining.
• Zinc die-cast parts offer very high strength to bearing surfaces.
• You can get solid and precise dimensional accuracy with zinc die cast.
• The production rate is higher than any other metal in this casting method.
• The finished zinc die cast has a very smooth surface.
• Zinc die cast gives higher tensile strength than most other metal alloys.

Zinc Die Casting Applications

Zinc die is mainly used for the production of miniature parts. Some notable applications of zinc die casting are as follows:

• Door hinges and handles
• Faucets and other sanitary products
• Aesthetic parts of the interior of automobiles
• Power steering
• AC systems and components
• Engine components
• Car hood components
• Car brake parts