Detailed Introduction

This matched two-plate connector mold set is engineered for long-length high-density multi-row pin housings. The mold core contains two parallel long cavities with dense micro pin inserts arranged in uniform matrix, forming the massive circular terminal holes on the finished black connector strips. Optimized extended runner system balances melt pressure along the full length of each cavity, eliminating filling lag, shrinkage and warpage at both ends of long thin-wall plastic parts. Built-in yellow spring ejection structure delivers stable, uniform demolding force to avoid bending of slender finished connectors.

The full ultra-precision manufacturing workflow strictly controls micro feature accuracy: dense tiny pin contours are machined via micro sinker EDM and wire EDM to guarantee consistent pin diameter and spacing tolerance; mold steel undergoes vacuum quenching & tempering heat treatment to raise surface hardness and wear resistance; multi-stage precision grinding and mirror polishing remove micro burrs around pin holes for smooth part ejection. Optional PVD coating can be applied to pin inserts to strengthen anti-corrosion performance against glass-filled LCP, PA66 engineering plastics.

All mold inserts, guide pins and mold base components pass full CMM coordinate measurement inspection before assembly to precisely control pin spacing, cavity flatness and overall dimensional consistency. Custom development is fully supported based on customer 2D/3D drawings or physical connector samples. Cavity length, pin density, mold steel grade and surface treatment can be adjusted according to daily production volume, plastic material and target mold service life, meeting high-precision mass production demands of long high-density signal connectors.

Specification Table