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Custom High-Temp Special Plastic Multi-Cavity Connector Injection Mold
This high-temperature special plastic multi-cavity connector injection mold is a fully custom precision mold base assembly dedicated to automotive & electronic high-temperature connector molding. Equipped with dual independent connector mold cavities, built-in slide undercut demolding mechanisms, precise positioning locking inserts and standardized mold cooling/thread mounting interfaces, the mold achieves machining tolerance up to ±0.002mm. Optimized for high-temperature engineering plastics (LCP, PPS, PEEK, PEI), it delivers stable high-cycle molding, excellent heat resistance and consistent connector dimensional accuracy for automotive wiring harness, new energy vehicle and consumer electronic connector mass production.

 

  • Main Product: High-Temp Special Plastic Multi-Cavity Connector Injection Mold Base Assembly
  • Machining Precision: ±0.002mm ultra-precision dimensional tolerance
  • Optional Mold Steel Materials: H13, STAVAX, S136, NAK80, PM-35, custom high-temperature resistant mold steel
  • Processing Technology: 5-axis CNC milling, deep cavity EDM, wire cut WEDM, precision surface grinding, vacuum heat treatment, mirror polishing, high temp anti-corrosion coating
  • Product Features: Dual symmetrical connector mold cavities, integrated slide demolding structure, built-in cooling channel reserved ports, high thermal stability mold steel, fully customizable cavity profiles, low thermal deformation, long service life
  • Application Industries: New energy automotive wiring harness connectors, industrial electronic signal connectors, high-temperature sensor plastic connectors, communication terminal plastic connectors
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Detailed Introduction

This custom connector mold is exclusively developed for forming high-temperature resistant special engineering plastics, solving thermal deformation, dimensional deviation and rapid cavity wear defects that frequently occur in high-temperature plastic injection.

The mold base adopts symmetrical dual independent connector cavity layout, each cavity equipped with matched slide inserts to realize demolding for connector buckles, locking hooks and irregular plastic housing undercut structures. Built-in positioning locking blocks and standard M20 threaded holes support fast installation on injection molding equipment; pre-reserved cooling flow ports allow separate temperature control for each cavity, effectively preventing plastic part warpage caused by uneven heat distribution of high-temperature molten plastic.

Complete Precision Machining Workflow

  1. 5-axis CNC rough milling for mold base outline and cavity rough machining
  2. Vacuum heat treatment to unify steel hardness, enhance high-temperature rigidity and lower thermal deformation
  3. Precision surface grinding to control mold base flatness and parallelism within ±0.002mm
  4. Sinker EDM and wire cutting for tiny complex connector cavity profiles and slide matching gaps
  5. Multi-stage mirror polishing to reduce melt adhesion and smooth connector ejection
  6. Optional PVD coating to improve cavity wear resistance when molding glass-fiber reinforced high-temperature plastics

All mold components pass full 3D coordinate measuring inspection to meet drawing tolerance standards. Custom development is fully supported based on customer connector samples or engineering drawings: mold steel grade, cavity layout, slide mechanism design, cooling circuit and surface treatment can be adjusted according to injection temperature, glass fiber proportion, production cycle and service life demands.

The high thermal stability design maintains steady product dimensional accuracy under continuous high-temperature molding, drastically cutting reject rates for automotive and electronic high-temperature plastic connectors.

Specification Table

ItemDetails
Product NameCustom High-Temperature Special Plastic Dual-Cavity Connector Injection Mold
Core StructureDual symmetrical connector forming cavities, slide undercut demolding inserts, positioning locking blocks, M20 mounting threads, reserved cooling channel ports
Machining Tolerance±0.002mm geometric tolerance (flatness, parallelism, cavity contour precision)
Optional Mold SteelSTAVAX, S136, H13, NAK80, PM-35 high temperature resistant pre-hardened mold steel, custom alloy mold steel
Manufacturing Process5-Axis CNC Milling, Precision Surface Grinding, Sinker EDM, Wire Cut WEDM, Vacuum Stress Relief Heat Treatment, Mirror Polishing, Optional PVD Anti-Wear Coating
Product AdvantagesCustomized per connector 2D/3D drawings, low thermal expansion under high injection temperature, integrated slide demolding simplifying assembly, balanced dual-cavity filling, anti-rust mold surface, stable long molding cycle service life
Application FieldsHigh-temperature engineering plastic connector injection molding (LCP/PPS/PEEK/PEI), new energy vehicle wiring harness terminals, automotive sensor plastic connectors, industrial electronic signal connectors

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