Detailed Introduction

This split two-plate mold set is engineered for small multi-pin connectors with side locking undercuts. The mold core adopts a single central cavity layout equipped with bilateral slide blocks to form side buckling structures of the connector housing, which avoids product sticking during ejection and ensures complete forming of anti-loosening assembly features. The integrated modular insert design enables independent replacement of worn micro pin cores, reducing overall mold maintenance costs and downtime.

The whole mold follows strict ultra-precision manufacturing standards: intricate tiny pin slot contours are processed via micro sinker EDM and wire EDM to guarantee uniform pin spacing and dimensional consistency; mold steel undergoes vacuum quenching & tempering heat treatment to enhance hardness and wear resistance against glass-filled PBT, PA66 and LCP engineering plastics; multi-stage mirror polishing eliminates micro burrs around micro pin holes for smooth, flash-free demolding. Optional PVD hard coating can be applied to cavity surfaces to improve corrosion resistance under long-term high-temperature injection cycles.

All mold inserts, slide assemblies and mold base pass full CMM coordinate measurement inspection before assembly to strictly control slide matching clearance, pin concentricity and parting line flatness. A lifting ring is mounted on the movable mold plate for safe mold transportation and installation. We fully support custom development based on customer 2D/3D drawings or physical connector samples. Slide stroke, pin density, mold steel grade and surface treatment can be adjusted according to daily production volume, plastic material and service life requirements, meeting high-precision mass production demands of miniature undercut electronic connectors.

Specification Table