Detailed Introduction

This matched two-plate large connector mold is designed for oversized long high-density pin connectors. The mold core is equipped with two sets of independent long strip dense pin cavity inserts, which can produce two complete long connector products in one molding cycle to boost production efficiency. The internal symmetrical multi-channel balanced runner system optimizes melt pressure transmission along the full length of long thin-walled parts, effectively eliminating filling deficiency, shrinkage and bending deformation at both ends of the strip connectors. The mold base is integrated with dense built-in cooling water channels to rapidly stabilize mold temperature, shorten molding cycle and improve product dimensional consistency.

The whole mold follows strict ultra-precision machining standards: thousands of tiny pin contours are processed by micro sinker EDM and wire EDM to ensure uniform pin hole spacing and dimensional tolerance; mold steel undergoes vacuum quenching and tempering heat treatment to enhance surface hardness and wear resistance; multi-stage precision grinding and mirror polishing remove micro burrs around dense pin holes for smooth demolding. Optional PVD coating can be applied to pin inserts to resist corrosion from glass-filled LCP, PA66 and other high-temperature engineering plastics.

All mold inserts, guide assemblies and mold base pass full CMM coordinate measurement inspection before assembly to precisely control pin position accuracy, cavity flatness and mold closing matching clearance. We fully support custom development based on customer 2D/3D drawings or physical connector samples. Cavity length, pin density, cooling layout, mold steel grade and ejection structure can be adjusted according to daily production capacity, plastic material characteristics and expected service life, meeting high-precision mass production demands of large high-density backplane connectors.

Specification Table