400T High Pressure Die Cast Machine for Water Pump, Gearbox & Motor Housing

400T High Pressure Die Cast Machine for Water Pump, Gearbox & Motor Housing

Engineered specifically for high-pressure die casting of aluminum alloy water pump housings, gearbox housings and motor housings, this 400-ton cold chamber die casting machine focuses on dense, defect-free forming of power-transmission and fluid-handling enclosure components. Water pump housings require leak-free internal coolant passages, gearbox housings demand precise bearing-bore alignment and oil-tight sealing surfaces, and motor housings need integrated heat-dissipation structures with consistent wall thickness; each component type places unique demands on casting density and dimensional precision. This 400T high-pressure die cast machine is optimized to meet all three housing categories simultaneously, making it the ideal core equipment for automotive and industrial power-system component manufacturers.

Built on an upgraded heavy-duty integral frame matched with high-strength tie bars, precision steel positioning pins and extra-thick load-bearing platens, the machine delivers outstanding overall rigidity and anti-vibration stability at 400 tons of clamping force. This high-stiffness structure suppresses equipment vibration and mold micro-deformation during high-pressure injection, preventing internal porosity in coolant passages, bearing-bore distortion in gearbox housings and uneven fin thickness in motor housings. It ensures uniform internal density and consistent dimensional accuracy across every aluminum water pump housing, gearbox housing and motor housing, perfectly meeting the precision requirements of power-system enclosure components.

Equipped with an imported German PLC programmable control system and high-definition color HMI touchscreen, the machine realizes visualized digital control of full-process injection speed and pressure. Advanced closed-loop pressure holding technology delivers extended, precise packing pressure to eliminate internal shrinkage cavities in thick-wall housing sections, ensuring zero leakage paths in water pump housings and reliable oil-tight performance in gearbox housings. The optimized electrical circuit simplifies complex control logic, maintaining stable operation in high-temperature industrial environments. The real-time fault display function quickly locates equipment anomalies, ensuring uninterrupted production of high-quality power-system housings.

The hydraulic system adopts mature dual-proportional control technology to achieve flexible multi-stage injection and sustained high-pressure packing, adapting to the different filling characteristics of water pump housings with complex internal passages, gearbox housings with thick-wall bearing sections and motor housings with thin-wall fin arrays. The entire hydraulic circuit uses premium European and Japanese imported oil seals, ensuring long-term leak-free operation with stable pressure output for consistent dense forming. The flexible hydraulic die height adjustment system simplifies mold installation and debugging, saving time and labor costs for multi-model housing production. The automatic pressure relief energy-saving system intelligently optimizes hydraulic operating pressure to reduce unnecessary energy loss.

The uniform-stress clamping mechanism and precise die height adjustment device ensure stable mold locking force and accurate mold positioning, effectively eliminating flash, bore distortion and sealing-surface warpage across all three housing types. The high-flow valve and precision piston accumulator injection system delivers balanced, steady injection volume with strong packing force, perfectly adapting to various water pump, gearbox and motor housing mold designs. Matched with an efficient oil cooling system, the machine maintains long-term stable hydraulic performance and consistent forming quality, with a durable service life of 15 to 20 years. Customers can optionally add a mold sweeping robotic arm for semi-automated production.