Two-Color Mold for Central Control Storage Box Lid | China Suppliers & Factory Quality Manufacturing
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 made of P20 pre-hardened plastic mold steel (HRC 28–32), which offers excellent wear resistance, corrosion resistance, and dimensional stability — ideal for high-precision two-color injection molding applications.
45# steel undergoes heat treatment to deliver strong comprehensive mechanical properties, including good tensile strength and toughness. It provides an optimal balance between structural strength and manufacturing cost-effectiveness for the mold base.
The dual water-cooling channels ensure uniform heat dissipation across the entire mold surface. This prevents localized overheating, reduces the risk of warping or deformation, shortens the cooling cycle, and ultimately improves the surface finish quality of the molded parts.
This mold is well-suited for automotive interior components (e.g., central control box covers), home appliance shells (e.g., two-color buttons and decorative panels), and small industrial precision parts such as connectors and snap-fit components requiring efficient demolding and high-volume production.
The mold uses a combined pin ejector and ejector plate system. This integrated approach enables smooth and efficient demolding, minimizes the risk of part damage during ejection, and supports reliable high-speed production cycles for complex two-color components.
Yes. The mold features a 2-cavity design that supports simultaneous molding of both right and left groove structures. It also accommodates multiple tooth socket configurations, offering strong scalability to meet the requirements of complex structural assemblies.