China Two-Color Mold for Central Control Storage Box Lid - Reliable Suppliers & Factory Solution
This mold is specifically designed for two-color injection molding processes. Both the cavity and core material are made of P20 pre-hardened plastic mold steel, ensuring high wear resistance and dimensional stability. The mold base is made of 45# carbon structural steel, balancing strength and cost-effectiveness. The ejector system integrates a pin-type ejector and ejector plate for efficient demolding. The hot runner system, combined with a standard side gate, optimizes the injection process. The dual water-cooling channel design improves cooling efficiency and shortens the production cycle. The mold supports simultaneous molding of two grooves (right groove + left groove) to meet the needs of complex structures.
◆ P20 steel is pre-hardened (HRC 28-32), which is wear-resistant and corrosion-resistant, and suitable for high-precision injection molding; 45# steel mold base is heat-treated, with excellent comprehensive mechanical properties.
◆ The two-color injection cavity and core material are integrated to reduce splicing errors; the hot runner system reduces scrap rate; and the side gate structure simplifies mold complexity.
◆ Dual water cooling channels provide uniform heat dissipation, preventing localized overheating and deformation, and improving the surface finish of the product.
◆ Supports simultaneous molding of multiple tooth sockets, adapts to left/right tooth structures, and has strong scalability.
Interior components such as the central control storage box cover require two-color injection molding and high dimensional precision.
Complex structural shells, such as two-color buttons and decorative panels, require wear resistance and deformation resistance.
Small, precision parts that require efficient demolding and mass production, such as connectors and snap-fit products.
| Cavity Material | P20 steel |
| Core Material | P20 steel |
| Mould Base Material | 45# |
| Ejection System | Pin ejector and ejection plate |
| Number of Cavity | 2 cavities (right + left) |
| Gate | Hot runner system + Normal side gate |
| Cooling System | By water |
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Both the cavity and core are manufactured from P20 pre-hardened plastic mold steel (HRC 28-32). This material offers superior wear resistance, corrosion resistance, and dimensional stability, making it ideal for high-precision two-color injection molding applications.
The hot runner system keeps plastic in a molten state within the runner, eliminating cold runner waste and significantly reducing material scrap rates. Combined with the standard side gate design, it optimizes injection flow and simplifies overall mold complexity.
The dual water-cooling channels distribute heat dissipation uniformly across the mold, preventing localized overheating and thermal deformation. This results in improved surface finish on molded products and a shorter production cycle overall.
This mold is well-suited for automotive electronics (e.g., central control storage box covers), home appliance manufacturing (e.g., two-color buttons and decorative panels), and industrial component production (e.g., precision connectors and snap-fit parts requiring high-volume output).
Yes. The 2-cavity design enables simultaneous molding of both right groove and left groove structures within a single production cycle. This improves efficiency and ensures dimensional consistency between paired components.
The mold uses a combined pin ejector and ejector plate system. This integrated approach enables smooth and reliable demolding of complex two-color parts, reduces cycle time, and minimizes the risk of product damage or deformation during the ejection process.