Detailed Introduction

This automotive connector series adopts two premium high-performance polymers PEEK and PEI to cope with harsh high-temperature, oily and vibration-prone engine compartment environments.

• PEEK: Outstanding mechanical strength, creep resistance, wear resistance and thermal stability, applied to large multi-grid junction cores and thick-wall connector shells that bear assembly clamping force and cyclic temperature changes.
• PEI (Ultem): Balanced high dielectric insulation and superior thin-wall micro-part moldability, ideal for miniature positioning inserts and small multi-pin signal inner cores to prevent terminal displacement caused by sustained heat radiation.

The product portfolio covers all core wiring harness matching parts: beige large grid distribution inner frames, black closed multi-grid junction boxes, cylindrical round sensor plug shells, multi-color modular signal sockets in orange, gray, yellow and blue, plus tiny locking wedges, positioning strips and anti-retention pins. Different shell colors are used to distinguish power, signal and ground circuits for rapid assembly inspection. Each main connector housing and auxiliary plastic insert adopts matched precise clearance to form dual anti-loosening protection, eliminating poor contact risks induced by vehicle vibration. Optimized high-viscosity melt flow mold design solves filling shortage, shrinkage and warpage defects of micro thin-wall PEEK/PEI components during precision injection molding.

Complete Production Workflow

1. Custom precision mold core processing: 5-axis micro CNC rough & finish milling, micro sinker EDM for tiny dense pin slots and complex grid rib contours
2. Vacuum stress relief heat treatment for mold steel to stabilize small and large cavity dimensions under continuous ultra-high-temperature injection cycles for high-performance polymers
3. Multi-stage ultra-fine mirror polishing to reduce high-viscosity PEEK/PEI melt adhesion and guarantee smooth terminal insertion fit
4. Segmented temperature-controlled ultra-high-temperature precision injection molding dedicated for PEEK & PEI
5. Post-molding full 3D micro coordinate inspection, micro burr trimming, long-term thermal aging and insulation resistance safety testing

All finished plastic components pass thermal creep, hydrolysis and vibration anti-loosening aging verification. Custom development is fully supported based on customer circuit layout drawings: pin grid quantity, shell wall thickness, polymer grade, locking structure and color scheme can be adjusted according to operating temperature, current load and vehicle assembly requirements. The standardized full-spec set realizes one-stop supporting supply from miniature sensor signal connectors to vehicle body power distribution junction modules.

Specification Table