Detailed Introduction

This automotive connector component series adopts two premium high-temperature engineering plastics PEEK and PEI to adapt to harsh engine compartment high-temperature environments.

• PEEK: Highest mechanical strength, wear resistance, creep resistance and long-term thermal stability, adopted for large long grid terminal blocks, thick-wall high-voltage plug housings and crimp plates bearing heavy assembly mechanical loads.
• PEI (Ultem): Balanced high-temperature insulation performance and superior thin-wall moldability, suitable for miniature thin positioning strips and dense micro-pin inner cores, effectively preventing terminal displacement caused by long-term heat radiation.

The product portfolio includes ultra-long black multi-row terminal strips, multi-color modular signal housings in orange, red, yellow, blue and green, cylindrical high-current power connectors, large multi-grid junction boxes, thick crimp positioning plates and various small locking inserts. Different shell colors are adopted to classify power, signal and high-voltage circuits for rapid assembly inspection. Each main housing and auxiliary fitting is designed with matched precise clearance to form dual anti-loosening protection, eliminating poor contact risks induced by vehicle vibration. Optimized ultra-high-temperature thin-wall melt flow mold design solves shrinkage, warpage and flash defects during molding high-viscosity PEEK & PEI engineering plastics.

Complete Production Workflow

1. Custom precision mold core processing: 5-axis CNC rough & finish milling, micro sinker EDM for tiny dense pin holes and complex locking contour structures
2. Vacuum stress relief heat treatment for mold steel to stabilize cavity dimensions under continuous high-temperature injection cycles for high-performance polymers
3. Multi-stage ultra-fine mirror polishing to reduce high-viscosity PEEK/PEI melt adhesion and lower demolding resistance
4. Segmented ultra-high-temperature precision injection molding customized for PEEK and PEI
5. Post-molding full 3D coordinate dimensional inspection, micro burr trimming, long-term high-temperature thermal aging and hydrolysis safety testing

All finished plastic components pass thermal stability, creep 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 mechanism and color scheme can be adjusted according to operating temperature, current load and vehicle assembly requirements. The diversified full-spec series covers matching demands from miniature sensor signal connectors to new energy vehicle high-voltage power distribution modules.

Specification Table