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What Are Zinc Diecastings?
The parts made by the zinc die casting process are called "zinc diecastings". Zinc die casting is a metal-forming process in which molten zinc alloy is injected under high pressure (typically 1,000–20,000 psi) into a hardened steel mold (die). The metal solidifies almost instantly (0.5–3 seconds), the die opens, and a near-net-shape part is ejected. Cycle times are usually 15–60 seconds, making the process extremely fast.
The process of zinc die casting is practiced by Kinetic Die Casting Company.
Zinc Diecastings Alloys
The most common zinc alloy is Zamak 3 (ZL3) – the “workhorse” alloy with excellent balance of strength, ductility, and castability.
Other alloys such as Zamak 2, 5, 7, and the ZA family (ZA-8, ZA-12, ZA-27) are selected for specific mechanical or cosmetic requirements.
Key Advantages of Zinc Die Casting
Exceptional Dimensional Accuracy and Stability
Tolerances as tight as ±0.001 in/in (±0.025 mm/25 mm) are routine. Parts need little or no secondary machining.
Thinnest Walls of Any Die-Casting Metal
Zinc can reliably cast walls as thin as 0.3–0.5 mm (0.012–0.020 in), roughly half of what aluminum can achieve. This is a huge advantage in miniaturization (think smartphone card trays or tiny gear housings).
Fastest Die Casting Cycle Times
Because zinc melts at only ~420 °C (788 °F) and solidifies quickly, hot-chamber machines can run 300–900 shots per hour—2–5× faster than cold-chamber aluminum die casting.
Superior Surface Diecastings Finish
As-cast surfaces are typically 32–63 µin Ra (0.8–1.6 µm). They accept chrome plating, powder coating, e-coating, and PVD finishes with almost no prep work.
Excellent EMI/RFI Shielding
Zinc diecasting housings are naturally conductive, making them ideal for electronics that need electromagnetic shielding without secondary operations.
Zero Draft or Negative Draft Capability
Special alloy and die designs allow undercuts and threads to be cast in, eliminating costly side cores or secondary tapping.
Long Tool Life
Hot-chamber zinc dies commonly last 500,000–1,000,000+ shots, far longer than magnesium or aluminum dies.
Recyclability
Zinc die casting scrap is 100 % recyclable with virtually no degradation of properties.
Typical Zinc Diecastings Applications
Automotive diecastings: door handles, lock components, seat-belt parts, fuel-system components
Electronics diecastings: connector bodies, smartphone mid-frames, laptop hinges, shielding cans
Sanitary/Plumbing: faucet bodies, valve components, shower heads
Consumer diecastings: power-tool housings, zippers, toy parts, fishing reels
Diecastings as hardware: locksets, hinges, window operators
Medical diecastings: instrument housings, pump components
Kinetic Die Casting Company
We manufacture zinc or zamak diecastings using the cold chamber die casting process. We pour the zinc alloy into the die casting die shot cylindar, instead of directly injecting the metal, as in the hot chamber die casting method.
Zinc / Zamak Part Prices
Kinetic Die Casting Company has produced millions of diecastings for many industries that need metal parts. Contact Kinetic Die Casting Company for diecastings
or diecastings tooling. We will help you get great quality diecastings fast and at a competitive price.
Call us for a competitive diecasting part price at 818-982-9200.
You can also email us at sales@kineticdc.com for a part price quotation of for a diecasting tool proposal.
Die Casting Processes
Brass Parts Die Casting.
Tooling Die Casting.
California Die Casting Company.
Die Casting Draft Angle.
Alloys for Die Casting.
Aluminum Die Casting Company.
Zinc Parts Die Casting.
Magnesium Die Casting Company.
Porosity in Die Castings.
Sand Castings.
Technical Die Casting Terms.
Die Castings Compared to Steel.
Die Castings Compared to Plastic.
Capabilities of Die Casting.
Why use Diecasting?.
What is Die Casting?.
American Die Casting Company .
Manufacturing Die Castings .
Custom Metal Parts.
Diecast Quality Production.
Die Casting Aluminum.
Zinc Diecastings.
Kinetic Die Casting Company.
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