Centrifugal Casting Machine for Jewelry Making Zamak Spin Casting Equipment for Women Earrings

Efficient Production Solution Tailored for Earrings & Small Jewelry

This Semi-Automatic Centrifugal Casting Machine is an upgraded model specifically designed for producing zinc alloy earrings, studs, drops, and other delicate jewelry items. This machine efficiently transforms zinc alloy raw materials into high-quality, smooth-finished earrings—your dual guarantee for boosting production capacity and product grade.

Working Principle & Core Advantages

The machine utilizes the classic centrifugal casting principle—after molten zinc alloy is poured into the mould, high-speed rotation generates powerful centrifugal force that drives the liquid metal evenly and forcefully into every fine detail of the mould cavity. This process ensures finished products with excellent surface smoothness, delicate and flowing lines, precise pattern reproduction, and minimal porosity or defects—perfectly meeting the dual standards of aesthetic appeal and wearing comfort required for earrings.

On this basis, the machine is specially equipped with a Vacuum Assistance System, delivering three major improvements to the core casting process:

• Sharper, More Three-Dimensional Products: Under vacuum, air in the mould cavity is pre-evacuated, allowing the molten metal to fill without gas resistance or turbulence. This perfectly replicates the mould's finest surface textures, resulting in earrings with crisper edges, fuller curves, and significantly enhanced three-dimensionality.

• Significantly Higher Yield Rate: Effectively eliminates common casting defects caused by trapped gases—such as porosity, cold shuts, and incomplete filling—substantially reducing scrap rates and ensuring more stable, reliable output for every batch.

• Extended Mold Service Life: Vacuum casting reduces oxidation reactions and thermal shock damage between the molten metal and the mould cavity surface. This minimizes wear and solder sticking, effectively extending mould lifespan and reducing consumable costs over long-term production.

Typical Application

This machine is exclusively designed for precision casting of zinc alloy earrings, studs, ear drops, and other jewelry accessories.