Aluminum Cold Chamber Die Casting Machine 3-in-1 EV On-board Power Unit Housing Machine

Purpose-built for manufacturing 3-in-1 EV on-board power unit housings that integrate OBC (on-board charger), DC-DC converter and PDU (high voltage power distribution unit), this 400-ton cold chamber die casting machine delivers one-piece precision forming of multi-cavity aluminum die cast on-board charger enclosures and power distribution housings. Integrated power module shells require ultra-accurate mounting positions, reliable EMC shielding structures and tight assembly tolerances to ensure stable operation of high-voltage automotive electronics. This 400T equipment eliminates multi-part assembly errors and achieves highly consistent dimensional accuracy, making it the ideal production solution for new energy vehicle high-voltage power components.

The machine adopts a heavy-duty reinforced frame structure with high-strength tie bars, enlarged wear-resistant steel pins and extra-thick machine platens engineered for 400-ton clamping force. This ultra-rigid architecture delivers exceptional impact resistance and load stability during high-pressure die casting, minimizing mold deflection and micro-vibration during forming. For 3-in-1 power unit housings, this translates to perfectly aligned mounting bores, uniform thickness of EMC shielding ribs and consistent cavity wall thickness across every production cycle. The rigid construction suppresses long-term mechanical deformation, extends equipment service life and fully supports non-stop mass production of precision new energy vehicle power module shells.

At its control core is a genuine German PLC system paired with a full-color human-machine interface touchscreen, enabling real-time precise monitoring and adjustable control of injection speed and pressure. Advanced closed-loop control technology delivers fine graded regulation throughout the entire filling cycle, ensuring complete, uniform formation of intricate internal partition walls, shielding ribs and precision mounting bosses without cold shuts or dimensional drift. This guarantees reliable electromagnetic shielding performance and interchangeable assembly accuracy for every OBC DC-DC PDU integrated die casting housing. The simplified electrical circuit design maintains stable, reliable operation even in high-temperature workshop environments, and the built-in fault display function quickly identifies electrical system abnormalities to minimize unplanned downtime.

The hydraulic system operates on dual-proportional control architecture to realize fully programmable multi-stage injection and low-pressure buffered mold clamping, which protects delicate precision mold cores and shielding structure inserts from impact damage. All hydraulic seals are sourced from premium European or Japanese brands to ensure long-term leak-free, stable performance under sustained 400-ton clamping pressure. A hydraulic die height adjustment system enables fast, labor-saving mold installation and changeover, reducing setup time for different EV power housing models. An automatic pressure relief energy-saving function effectively reduces unnecessary hydraulic energy consumption during continuous operation.

The clamping and die height adjustment mechanism ensures uniform stress distribution across the full platen and stable mold positioning, avoiding cavity misalignment and mounting hole deviation in high-voltage power distribution housings. The injection unit with high-flow valves and a precision piston accumulator delivers powerful, consistent injection performance that fully fills complex multi-cavity new energy vehicle power module shell molds. A high-efficiency oil cooling system maintains stable hydraulic temperature during long-shift production, supporting a reliable service life of 15 to 20 years. An optional mold sweeping robotic arm is available to upgrade production automation.

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