Zinc Alloy Die Casting Machine Bluetooth Earbud Housing Machine Earbud Charging

Purpose-built for manufacturing premium zinc alloy TWS earbud charging case top and bottom shells, this 88-ton hot chamber die casting machine delivers flawlessly smooth, blemish-free casting surfaces that are perfectly suited for subsequent electroplating, anodizing, painting and PVD finishing processes. It is the ideal production solution for consumer electronics hardware suppliers serving high-end audio and smart wearable brands.

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 reducing mechanical vibration that would cause surface flow marks and uneven finish on earbud case housings. For charging case shell production, this translates to consistently smooth visible surfaces, sharp edge definition and minimal flash, directly reducing polishing and rework costs before surface treatment.

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, eliminating flow lines, cold shuts, gas pores and surface blemishes on the large, flat exterior surfaces of earbud charging cases. This dramatically improves first-pass yield for plating and painting processes and lowers overall production costs. 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.

The hydraulic system operates on dual-proportional control architecture to realize fully programmable multi-stage injection and low-pressure mold clamping, which protects highly polished mirror mold cavities from impact damage and preserves surface texture over extended production runs. All hydraulic seals are sourced from premium European or Japanese brands to ensure long-term reliable, leak-free operation with no risk of oil contamination that would ruin finishing quality. 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. It is also equipped with an automatic pressure relief energy-saving function that effectively reduces system energy consumption during operation.

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 earbud case shell 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.

We guarantee shipment within 20 days of order confirmation. Our service package includes 2-hour rapid response plus 24-hour on-site after-sales service, dedicated one-on-one technical support, on-site commissioning by certified engineers, and ongoing technical assistance. We also warmly welcome all customers to visit our factory for on-site inspection and technical exchange.