Semi-Automatic Three-Head Centrifugal Casting Machine for Producing Metal (Zamak

Product Specification

Semi-Automatic Three-Head Centrifugal Casting Machine for Producing Metal (Zamak) Alphabet-Themed Medals

Product Overview

This semi-automatic three-head centrifugal casting machine is purpose-built for producing Zamak alphabet-themed medals, letter charms, and custom lettered medallions. The three-station rotary table enables continuous cycling—casting, cooling, and demolding happening in rotation—while the variable-frequency centrifugal drive ensures molten Zamak fills every letter stroke and border detail with precision. Combined with an optional vacuum-assisted degassing system, it delivers clean, porosity-free medal surfaces ready for direct polishing and electroplating.

Key Advantages

1. Three-Head Rotary Table: Continuous Output for Letter Medal Batches

The three-station design keeps production moving without idle gaps. While one mold is spinning and cooling, the operator can load the next mold or remove finished pieces from the previous cycle. Output reaches up to 200 casting cycles per hour under continuous operation. For alphabet-themed medal runs—where multiple letter designs are often produced in parallel—this rotary format lets you queue different letter molds back-to-back with minimal changeover downtime.

2. Sharp Letter Definition Under Centrifugal Force

Alphabet medals live or die by letter clarity. The machine’s variable-frequency drive maintains stable rotation across 50–1400 rpm, generating consistent centrifugal force that drives molten Zamak into the narrowest strokes of “A,” the tight curves of “S,” and the serifs of custom typography. The result is crisp, fully formed lettering straight out of the mold—no blurring, no incomplete strokes, no hand rework on text edges.

3. Vacuum-Assisted Degassing for Plating-Ready Surfaces

Letter medals typically go through electroplating or high-polish finishing, and any surface porosity becomes a visible defect after plating. The vacuum system evacuates residual mold gases before pouring, eliminating pinholes and micro-porosity that would otherwise show up as pits or plating flaws. This directly improves plating yield and reduces rejection rates on finished letter medals.

4. Semi-Automatic Design for Flexible Batch Production

Automatic lid opening and closing reduces operator fatigue during long shifts, while digital speed display and timer settings allow repeatable parameters across different letter molds and medal sizes. One operator can manage the three-station cycle efficiently—ideal for customization workshops handling multiple alphabet designs in small-to-medium batches. The electronic emergency brake provides immediate safe stops when needed.

5. Optimized for Zamak Medal Production

Zamak (zinc alloy) is the standard material for decorative medals due to its excellent castability, detail reproduction, and plating compatibility. With a pressure regulation range of 0–7 kg and mold compatibility up to 12 inches, the machine accommodates common medal mold configurations. The 1.5 kW motor keeps operating costs manageable for small and mid-sized production studios.