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Wire Harness Connector Plastic Injection Mold Parts
Wire harness connector plastic injection mold parts are precision-engineered components designed for manufacturing automotive electrical connector systems, including terminal housings, header connectors, sealed connector assemblies, and wire-to-board interfaces. These mold parts are manufactured using high-grade tool steels with advanced machining processes to achieve tight tolerances and extended service life. The tooling system supports insert molding of terminals, contacts, and seals, as well as multi-shot processes for complex geometries. Each mold part features conformal cooling channels, wear-resistant PVD coatings, and precision-aligned guide systems to ensure consistent part quality across millions of production cycles. The modular design allows for quick changeovers and maintenance, reducing downtime and improving overall efficiency.
Core advantages
- Precision-ground cavity inserts with ±0.005 mm tolerance
- PVD coating (TiAlN, CrN) on all wear surfaces
- Conformal cooling channels for uniform thermal distribution
- Multi-cavity configurations (4+4 to 16+16)
- Insert molding capability for terminals and seals
- Hot runner systems with valve gate control
- Extended tool life up to 3 million shots
Product characteristics
| Mold base standard | DME / HASCO / FUTABA |
| Tool steel grades | Stavax ESR, H13, P20 |
| Surface finish | SPI A1, VDI 3400, textured |
| Cavity tolerance | ±0.005 mm |
| Clamping force range | 50 – 800 ton |
| Number of cavities | 4 – 16 (custom) |
| Coating | PVD (TiAlN, CrN) |
| Mold life | 1M – 3M shots |
Application scenarios
- Terminal housings and cavity plugs
- Sealed and unsealed connector systems
- Header connectors and pin headers
- Wire-to-board and board-to-board connectors
- Sensor connectors and mounting flanges
- High-voltage connector systems
- Custom interconnect solutions
Processing considerations
- Mold temperature: 80–120°C for PA; 60–100°C for PBT
- Melt temperature: 260–300°C for PA; 230–260°C for PBT
- Insert preheat temperature: 120–180°C for terminals
- Injection profile: slow fill to prevent insert displacement
- Pack pressure: 50–80% of injection pressure
- Venting depth: 0.003–0.008 mm for precision
- Shrinkage allowance: 0.5–1.2% for PA
