Product Overview
This is a high-performance 1+1 cavity injection mold, purpose-built for manufacturing large, complex housing parts in PA6+30GF (Nylon 6 with 30% glass fiber reinforcement). Constructed from premium P20 mold steel (HRC 28-38) and featuring fully polished cavity and core surfaces, this tooling delivers exceptional precision, durability, and consistent surface quality for industrial-grade plastic components. Designed with a large submarine gate system, it ensures robust, balanced melt flow, eliminates gate marks on critical exterior surfaces, and supports stable long-term production of large-format housings. Optimized specifically for the high rigidity and abrasiveness of glass-filled nylon, this mold effectively mitigates common molding challenges like surface floating fibers, warpage, and uneven shrinkage, making it the ideal solution for mass production of high-strength plastic housing parts.
Core Product Specifications
| Specification Item | Detailed Parameters |
| Mold Cavity | 1+1 Dual-Cavity design, optimized for paired housing parts or high-volume single-component production |
| Applicable Material | PA6+30GF (Nylon 6 + 30% Glass Fiber Reinforced Plastic) |
| Gating System | Large Submarine Gate (tunnel gate), hidden feeding, no visible marks on finished housing surfaces |
| Mold Steel Grade | P20 Mold Steel, widely trusted for industrial injection molding applications |
| Steel Hardness | HRC 28-38 (pre-hardened), uniform toughness and wear resistance for long runs |
| Surface Finish | Fully Polished Cavity & Core, delivering smooth, clean surface quality for housing parts |
| Molded Application | Custom industrial plastic housing / structural enclosures / large-format component shells |
| Molding Process | Standard plastic injection molding, compatible with high-tonnage injection molding machines |
| Production Capability | Stable cycle times, consistent part quality, ideal for medium to large-scale manufacturing |
![1+1 Cavity PA6+30GF Injection Mold]( "1+1 Cavity PA6+30GF Injection Mold")
Advanced Mold Design & Manufacturing Features
1. 1+1 Cavity Layout for Balanced Production
The 1+1 cavity configuration strikes an optimal balance between production efficiency and molding precision. Whether used for producing matching left/right housing components or doubling output of a single part, the design ensures uniform melt distribution, identical cooling rates, and consistent dimensional accuracy across both cavities. This eliminates common multi-cavity issues like uneven filling or part warping, even with the high-viscosity PA6+30GF material.
2. Robust P20 Steel Construction
Built with pre-hardened P20 mold steel, this tooling offers exceptional structural stability and resistance to the abrasive effects of glass fiber in PA6+30GF. With a uniform hardness of HRC 28-38, the mold resists wear, deformation, and surface scratching during extended production cycles, ensuring long-term dimensional accuracy and reducing maintenance needs. The steel’s excellent thermal conductivity also contributes to consistent cooling and minimal cycle-to-cycle variation.
3. Large Submarine Gate System
The large submarine (tunnel) gate design is specifically tailored for large-format PA6+30GF housings. Unlike visible surface gates, this system feeds material through hidden channels, leaving no marks on critical exterior surfaces. The large gate size accommodates the high melt viscosity of glass-filled nylon, enabling fast, balanced filling that minimizes internal stress and reduces the risk of warping or sink marks in thick-walled housing sections.
4. Fully Polished Cavity & Core
Both the cavity and core surfaces are precision-polished to a high standard, directly addressing a key challenge with PA6+30GF molding: surface floating fibers. The smooth, polished finish effectively suppresses visible fiber exposure, resulting in clean, professional-looking housing parts with consistent texture. This finish also improves mold release, reduces part ejection marks, and enhances the overall aesthetic quality of the finished product.
5. Optimized Cooling for Large Housing Parts
The mold is engineered with strategically placed cooling channels to ensure uniform, rapid cooling across the entire large housing geometry. This design shortens cycle times, prevents uneven shrinkage (a common issue with thick-walled GF nylon parts), and maintains tight dimensional tolerances on critical mounting holes and assembly features.
Material Adaptability & Core Advantages
PA6+30GF is a high-performance engineering plastic prized for its exceptional strength, heat resistance, and dimensional stability—making it ideal for industrial housings, electrical enclosures, and structural components. However, its glass fiber content presents unique molding challenges:
Abrasion: Glass fibers can wear down mold surfaces over time.
Surface Quality: Fibers can migrate to the part surface, creating a rough, unpolished appearance.
Flowability: The high viscosity of GF-filled nylon requires robust, balanced gating systems.
This custom mold is purpose-built to overcome these issues:
The P20 steel’s hardness and wear resistance stand up to the abrasive GF material, extending mold life.
The polished cavity/core finish hides surface fibers, delivering a clean, professional part appearance.
The large submarine gate ensures smooth, complete filling, reducing internal stress and warping.
Key Applications
This high-precision PA6+30GF injection mold is designed for manufacturing a wide range of industrial housing parts, including:
Electronic equipment enclosures and control unit housings
Automotive structural brackets and interior component shells
Industrial machinery housing and protective covers
Electrical appliance structural components and base parts
Custom high-strength plastic enclosures requiring durability and precision
Quality Assurance & After-Sales Support
Every injection mold undergoes a rigorous multi-stage quality control process, including:
Steel hardness and material verification
Dimensional accuracy checks of all critical mold features
Surface finish inspection of polished cavity and core surfaces
Mold trial runs to validate cycle time, part quality, and gate performance
We provide comprehensive after-sales support, including mold maintenance guidance, technical troubleshooting, and modification services, to ensure your production runs smoothly for years to come.
