Zinc Alloy Spin Casting Machine for Medals Commemorative Crafts Semi-automatic Spin Casting Machine for Award Sports Medals

Uniform Wall Thickness Control & Dome Detail Forming Solution for Zinc Alloy Curved Medals

This semi-automatic vacuum centrifugal casting machine is purpose-built for precision casting of zinc alloy curved medals, with centrifugal force for uniform metal distribution + vacuum-assisted degassing as its core advantages—particularly effective in addressing common issues such as uneven wall thickness and surface defects in curved structures like dome-shaped fronts, concave backs, and arched edges.

Centrifugal Force for Uniform Metal Distribution–Ensures Wall Thickness Consistency in Curved Medals

Curved medals feature dome-shaped raised fronts and concave backs, with significant wall thickness variation between center and edges—prone to uneven solidification shrinkage, porosity, or deformation. This machine uses high-speed centrifugal force to distribute molten zinc alloy uniformly across all cavity regions, ensuring both the raised center and thin edges receive adequate filling pressure simultaneously—structurally guaranteeing wall thickness consistency and reducing dimensional deviations and post-processing rework.

Vacuum-Assisted Degassing–Sharp, Complete Details on Dome Tops & Concave Surfaces

The dome top of curved medals often carries raised lettering or logo patterns, while the concave back surface is prone to pitting caused by trapped gases. Equipped with an imported high-vacuum pump, this machine actively evacuates residual mold gases before pouring, ensuring smooth, complete metal contact with dome surfaces and concave contours—producing full, sharp details while eliminating porosity and surface blemishes.

Semi-Automatic Design–Flexibly Handles Diverse Curved Medal Orders

The automatic lid opening/closing design enables quick mold changeover—ideal for medal customization workshops and event souvenir suppliers handling multi-variety, small-batch curved medal orders. One operator can manage multiple machines, balancing efficiency and flexibility.

With centrifugal force for uniform wall thickness + vacuum for curved surface details, your curved medals achieve the perfect union of design aesthetics and casting quality.