Detailed Introduction

This split mold set is engineered for square dense grid high-density signal connectors that require precise multi-terminal matching. The fixed mold plate is equipped with a uniform matrix of micro pin cores to form dense circular terminal holes on finished connectors; the movable mold plate shapes the outer square shell and integrates slide side core pulling structures to handle undercut locking features, ensuring reliable plugging performance under vibration and temperature fluctuation environments. Optimized central runner layout delivers even melt pressure across the entire grid cavity, eliminating local short shots and dimensional deviation for thin-wall compact parts.

The full ultra-precision manufacturing workflow complies with high-reliability connector mold standards: thousands of tiny pin contours are processed via micro wire EDM and sinker EDM to guarantee consistent pin pitch and concentricity; mold steel undergoes vacuum quenching & tempering heat treatment to boost hardness, wear resistance and thermal stability; multi-stage nano mirror polishing removes micro burrs around each pin hole to avoid conductive debris that may cause circuit short faults. Optional PVD hard coating can be applied to pin inserts to resist corrosion from high-performance engineering plastics including PEEK, PEI and glass-filled PA66.

All mold inserts, slide assemblies and mold base pass full CMM coordinate measurement and surface roughness inspection before assembly to strictly control pin spacing, cavity flatness and mold closing clearance. We fully support custom development based on aerospace/industrial 2D/3D engineering drawings or physical connector samples. Grid pin count, cavity size, mold steel grade and surface treatment can be adjusted according to signal transmission requirements, plastic material and service life standards, meeting high-precision mass production demands of compact dense grid high-density connectors.

Specification Table