138T Hot Chamber Die Casting Machine Zinc Alloy Enamel Medal Die Casting Machine

 

Purpose-built for manufacturing zinc alloy sports medals, event commemorative medallions and marathon awards with intricate relief patterns and fine decorative details, this 138-ton hot chamber die casting machine delivers exceptional detail reproduction and sharp pattern definition, making it ideal for premium competition medals that require clear, layered embossed designs.

The machine adopts a newly reinforced frame structure, paired with high-strength tie bars, enlarged steel pins and thickened machine platens, which greatly improves overall rigidity and load-bearing capacity. This robust structural design delivers stronger impact resistance and better load stability during high-pressure die casting, effectively minimizing mechanical vibration that would cause blurred pattern edges and uneven relief depth. For high-relief sports medal production, this translates to consistently sharp design details, uniform relief layers and minimal flash, ensuring every fine line and decorative element is fully and clearly formed.

At its control core is a genuine German PLC system paired with a full-color human-machine interface touch screen, enabling precise real-time monitoring and adjustable control over injection speed and injection pressure. Advanced closed-loop control technology enables ultra-fine regulation of injection speed throughout the entire filling cycle, ensuring smooth, complete filling of delicate relief recesses and fine pattern details without cold shuts or incomplete formation. The control panel also features a built-in fault display function that quickly indicates electrical system abnormalities, helping operators resolve issues efficiently and minimize downtime, even in high-temperature production environments.

The hydraulic system operates on dual-proportional control architecture to realize fully programmable multi-stage injection and low-pressure mold clamping, which protects delicate engraved mold cavities and fine relief surfaces from impact damage, extending the service life of custom medal tooling. All hydraulic seals are sourced from premium European or Japanese brands to ensure long-term reliable, leak-free operation. The machine is fitted with a hydraulic die height adjustment system, making mold installation and changeover faster and more convenient to save time and labor for event medal production runs. It is also equipped with an automatic pressure relief energy-saving function that effectively reduces system energy consumption during operation and minimizes unnecessary energy loss.

The clamping and die height adjustment mechanism ensures uniform stress distribution and stable mold positioning, while the injection unit with high-flow valves and a precision piston accumulator delivers accurate, consistent injection performance that adapts to various relief medal mold designs. A high-efficiency oil cooling system maintains stable hydraulic temperature during extended production runs, supporting an overall service life of 15 to 20 years. An optional mold sweeping robotic arm is available for further automation upgrade.