280T Hot Chamber Die Casting Machine For Auto Lock Cylinder Car Door Lock Zinc Alloy Mixed Door Lock Core

Specially optimized for producing high-precision zinc alloy mixed door lock core components, internal transmission gears and positioning structural parts, this 280T hot chamber die casting machine delivers ultra-stable dimensional accuracy and consistent structural uniformity, fully meeting the strict assembly tolerance and long-term switching stability requirements of household and commercial mixed door locks. Tailored for medium-sized zinc alloy hardware products with complex internal structures and fine precision features, it is the ideal core equipment for high-quality door lock part production.

The machine adopts an upgraded reinforced frame structure, equipped with high-strength tie bars, enlarged steel pins and thickened machine platens, which comprehensively boosts overall mechanical rigidity and load-bearing capacity. This high-rigidity structural design endows the equipment with excellent impact resistance and ultra-stable load performance during high-pressure die casting processes. It effectively suppresses mechanical vibration and micro-deformation during long-term high-pressure operation, greatly extending the machine’s service life and perfectly adapting to heavy-duty continuous production of zinc alloy door lock hardware.

Powered by a genuine German PLC core and paired with a full-color human-machine interaction screen, the machine realizes real-time accurate monitoring and adjustable precision control of injection speed and injection pressure. Built-in closed-loop control technology achieves micro-level fine adjustment of the entire injection process, ensuring complete and uniform filling of tiny lock core tooth grooves, positioning holes and intricate internal structures without cold shuts, porosity or incomplete forming defects. The optimized circuit structure simplifies complex electrical systems, maintaining stable and reliable operation even in high-temperature workshop environments. The intelligent fault display panel quickly identifies electrical system abnormalities, enabling operators to troubleshoot and resolve problems efficiently and reduce unplanned downtime.

Featuring advanced dual-proportional hydraulic control, the machine supports multi-stage graded injection and low-pressure precise mold clamping, which effectively protects precision lock mold cores and delicate fine-grain structures from impact damage. All hydraulic systems adopt high-quality European and Japanese oil seals to ensure long-term leak-free and stable operation. The hydraulic die height adjustment system enables fast, labor-saving mold installation, debugging and replacement, greatly improving mold switching efficiency for different mixed door lock models. The integrated automatic pressure relief energy-saving system intelligently reduces invalid system energy consumption during operation, achieving efficient and low-cost production.

The professional clamping and die height adjustment device ensures uniform stress distribution and ultra-stable mold positioning, while the injection unit configured with high-flow valves and precision piston accumulators provides accurate, consistent and repeatable injection force. It adapts perfectly to various complex mold designs for mixed door locks, realizing one-piece precision forming of multi-structure lock parts. Equipped with an efficient oil cooling system, the machine maintains constant hydraulic temperature during long-shift continuous production, supporting a stable service life of 15–20 years. An optional mold cleaning mechanical arm is available to upgrade automated production efficiency.