Detailed Introduction

This split mold set is designed for tiny rectangular multi-pin electronic connectors. The fixed mold plate is equipped with a single independent cavity insert to form the complete outline and internal pin slots of small connector shells; two finished black connector samples are displayed on the plate to show the molded product appearance. The movable mold plate is fitted with a built-in yellow spring ejection mechanism, which outputs uniform ejection force to prevent thin-wall connector deformation, scratches or breakage during demolding.

The full ultra-precision manufacturing workflow meets electronic precision molding standards: micro pin slot contours are processed via micro sinker EDM and wire EDM to ensure consistent pin pitch and dimensional accuracy; mold steel undergoes vacuum quenching & tempering heat treatment to improve hardness and wear resistance against glass-filled PBT and PA66; multi-stage mirror polishing removes micro burrs inside tiny cavities for smooth flash-free molding. Optional PVD coating can be applied to cavity inserts to extend service life under long-term continuous production.

All mold inserts, guide pins and mold base pass full CMM coordinate measurement inspection before assembly to strictly control cavity flatness and mold closing matching clearance. The mold base adopts green anti-rust protective plates to reduce surface oxidation during storage and transportation. We fully support custom development based on customer 2D/3D drawings or physical connector samples. Cavity size, pin layout, spring ejection stroke and surface treatment can be adjusted according to production capacity, plastic material and service life requirements, meeting high-precision mass production demands of miniature circuit board connectors.

Specification Table