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Automotive Wiring Connector Mold
The automotive wiring connector mold is engineered for producing high-precision connector systems including wire-to-wire, wire-to-board, and sealed connector solutions. This tooling system supports insert molding of terminals, contacts, and pre-assembled wire subassemblies with tight dimensional control. The mold architecture incorporates sliding cores, collapsible cores for internal locking features, and hot runner systems with pinpoint gating to achieve precision fill in thin-wall sections. Steel selection includes Stavax ESR for polished cavity surfaces and H13 with PVD coating for wear-prone insert areas. Cooling employs conformal circuits with micro-channel technology to maintain dimensional stability. Ejection strategies combine ejector pins, air poppets, and a synchronized stripper system to ensure damage-free demolding of intricate connector geometries.
Core advantages
- Insert molding capability for terminals and wire subassemblies
- Collapsible core technology for internal locking and TPA features
- Pinpoint gate hot runner with individual temperature control
- Multi-cavity configurations (4+4, 8+8, 12+12, 16+16)
- PVD coating (TiAlN, CrN) on slide and core surfaces
- Conformal micro-channel cooling reduces cycle time by 20–28%
- Terminal positioning tolerance ±0.01 mm with optical verification
Product characteristics
| Mold base standard | DME / HASCO / FUTABA |
| Insert molding capability | Terminals, contacts, wire subassemblies |
| Injection materials | PA6, PA66, PBT, LCP, PPS, POM |
| Clamping force range | 50 – 600 ton |
| Number of cavities | 4 – 16 (custom) |
| Surface finish | SPI A1, VDI 3400, textured |
| Terminal positioning tolerance | ±0.01 mm |
| Mold life | 1M – 3M shots |
Application scenarios
- Wire-to-wire connector housings
- Wire-to-board header connectors
- Sealed and unsealed connector systems
- Terminal position assurance (TPA) components
- Cavity plugs and wire seals
- Sensor connectors and mounting flanges
- High-voltage connector systems
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 terminal displacement
- Pack pressure: 50–80% of injection pressure, hold time 3–8 sec
- Venting depth: 0.003–0.008 mm for precision
- Shrinkage allowance: 0.5–1.2% for PA; 0.3–0.8% for LCP
