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Automotive Wire Harness Plastic Injection Mold Parts
Automotive wire harness plastic injection mold parts are precision-engineered components designed for manufacturing cable management systems in vehicles, including connector housings, junction boxes, cable clips, strain reliefs, grommets, and wire routing guides. 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 pre-assembled wire subassemblies, as well as overmolding processes for encapsulated cable assemblies. 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生产效率.
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 contacts
- 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
- Connector housings and terminal retainers
- Junction boxes and fuse block enclosures
- Cable clips, clamps, and routing guides
- Strain reliefs and cable glands
- Grommets and sealing elements
- Encapsulated wire harness assemblies
- Harness board mounts and tie-downs
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
