Product Overview
This is a high-precision 1*1 cavity injection mold, purpose-built for manufacturing industrial three-way pipe fittings from PA66+30% glass fiber reinforced plastic. Constructed with premium mold steel heat-treated to HRC 48-52 and finished with a standard VDI27 surface texture, this tooling delivers exceptional wear resistance, dimensional stability, and consistent surface quality for high-performance fluid system components. Featuring a direct sub gate system, the mold ensures balanced melt flow, minimal gate residue, and optimal filling for the complex geometry of the three-way fitting. Optimized specifically for the high rigidity and abrasiveness of glass-filled PA66, this mold effectively mitigates common molding challenges like surface floating fibers, warpage, and uneven shrinkage, making it the ideal solution for durable, high-precision pipe fitting production.
Core Product Specifications
| Specification Item | Detailed Parameters |
| Mold Cavity | 1*1 Single Cavity, optimized for precision and dimensional accuracy of three-way pipe fittings |
| Applicable Material | PA66+30%GF (Nylon 66 + 30% Glass Fiber Reinforced Plastic) |
| Gating System | Direct Sub Gate, balanced melt flow, minimal gate residue, no visible marks on critical surfaces |
| Mold Steel & Hardness | High-grade mold steel, heat-treated to HRC 48-52, excellent wear & thermal fatigue resistance |
| Surface Finish | VDI27 Standard Texture, consistent matte finish, hides minor molding imperfections |
| Molded Application | Custom three-way pipe fittings / fluid system components / industrial plumbing parts |
| Production Compatibility | Standard injection molding machines, suitable for high-pressure GF material molding |
| Production Feature | High precision, low defect rate, long service life, ideal for medium to large-scale production |
![Three-way Molding Part Pipe Fitting Manufacturing Mold]( "Three-way Molding Part Pipe Fitting Manufacturing Mold")
Advanced Mold Design & Manufacturing
1. 1*1 Cavity Layout for Precision Control
The 1*1 single-cavity design allows full focus on the complex geometry of the three-way pipe fitting. This configuration ensures uniform melt flow, consistent cooling, and tight dimensional control across every critical feature—including threaded ports, sealing surfaces, and internal channels—eliminating the risk of imbalance common in multi-cavity setups.
2. High-Hardness Mold Steel Construction
Built with premium mold steel heat-treated to HRC 48-52, this tooling offers exceptional resistance to the abrasive effects of glass fiber in PA66+30GF. The uniform hardness prevents surface scratching, wear, and deformation during long production runs, ensuring the mold maintains its precision and dimensional accuracy over millions of shots.
3. Direct Sub Gate System for Complex Geometry
The direct sub gate design is strategically positioned to feed material directly into the fitting’s thick-walled section, ensuring complete, balanced filling of all three ports. This minimizes internal stress, reduces the risk of warpage in the curved three-way geometry, and leaves minimal gate residue for easy post-processing.
4. VDI27 Surface Finish for Industrial Durability
Both the cavity and core surfaces are finished to VDI27 standard texture, which effectively masks minor surface imperfections and floating fibers common in GF-filled nylon parts. The uniform matte finish provides a professional, durable appearance while improving mold release and reducing the visibility of scratches in service.
5. Optimized Cooling for Thick-Walled Fittings
The mold is engineered with precision cooling channels tailored to the thick, multi-directional geometry of the three-way fitting. This design ensures uniform cooling across all ports, preventing uneven shrinkage, sink marks, and warpage—critical for maintaining leak-tight threaded connections in fluid applications.
Material Adaptability & Core Advantages
PA66+30GF is a high-performance engineering plastic prized for its exceptional strength, heat resistance, and chemical resistance, making it ideal for industrial pipe fittings. This custom mold is purpose-built to leverage these properties:
Abrasion Resistance: The HRC 48-52 mold steel stands up to the abrasive GF material, extending mold life and maintaining precision.
Surface Quality: The VDI27 texture hides surface fibers, delivering a clean, professional finish for industrial use.
Structural Integrity: The direct sub gate and optimized cooling system minimize internal stress, preventing warpage and ensuring leak-tight threaded connections.
Long-Term Stability: The high-hardness steel construction ensures consistent part quality, even after millions of shots.
Key Applications
This high-precision injection mold is designed for manufacturing a wide range of industrial three-way pipe fittings and fluid system components, including:
Hydraulic and pneumatic system connectors
Industrial plumbing and fluid transfer components
Automotive cooling and HVAC system parts
Custom GF nylon fittings requiring high strength and chemical resistance
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, including thread profiles and sealing surfaces
Surface finish inspection of the VDI27 textured cavity and core
Mold trial runs to validate cycle time, gate functionality, and part quality
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.
