China Suppliers Factory Injection Mold for Rear Retaining Plate - High Efficiency Tailgate Mold Solutions
1. Material Advantages
◎ The P20 steel cavity is pre-hardened to a hardness of 30–36HRC, allowing for direct machining and corrosion resistance; the 45# steel mold base is heat-treated to achieve a tensile strength exceeding 600MPa.
2. High-Efficiency Molding
◎ The hot runner system is temperature controlled to reduce melt shrinkage and deformation, and combined with the side gate, it achieves uniform filling of multiple cavities.
3. Precise Cooling
◎ The water-cooling channel design ensures temperature control accuracy of ±0.5℃, preventing product warping.
4. Reliable Demolding
◎ The pin-type ejector and ejector plate work together to meet the demolding needs of complex structures.
5. Dual-Groove Adaptation
◎ The right and left teeth are designed independently, compatible with bidirectional threaded products, expanding application scenarios.
Automotive Parts
Plastic parts that require high surface finish and dimensional stability, such as tailgates and interior trim.
Industrial Parts
Fasteners and connectors with symmetrical threads, such as flanges and brackets.
Daily Necessities
Large containers, shells, and other mass-produced products that require rapid cooling and molding.
Electronic Components
Precision structural parts, using a water-cooling system to ensure low thermal deformation.
General Injection Molding
Suitable for medium to high-volume production of engineering plastics such as PP, ABS, and PA.
| 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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What material is used for the mold cavity and core?
Both the cavity and core are made from P20 steel, which is pre-hardened to 30–36HRC. This allows for direct machining without additional heat treatment, and provides excellent corrosion resistance for long-term use.
What is the cooling accuracy of this injection mold?
The water-cooling channel system ensures a temperature control accuracy of ±0.5℃, which effectively prevents product warping and dimensional inconsistencies during production.
What type of gate and runner system does this mold use?
This mold uses a hot runner system combined with a normal side gate design. The hot runner system enables precise temperature control to minimize melt shrinkage and deformation, while the side gate ensures uniform filling across multiple cavities.
What plastics are compatible with this mold?
This mold is suitable for medium to high-volume production using common engineering plastics including PP (polypropylene), ABS (acrylonitrile butadiene styrene), and PA (polyamide/nylon), among others.
How does the ejection system work for complex part structures?
The mold features a combined ejection system using both pin-type ejectors and an ejector plate. This dual-mechanism approach ensures reliable and consistent demolding performance, even for parts with complex geometries or undercuts.
What industries and products is this mold best suited for?
This mold is well-suited for a wide range of industries including automotive (tailgates, interior trim), industrial manufacturing (flanges, brackets), consumer goods (containers, shells), and electronics (precision structural parts). Its dual-groove design also supports bidirectional threaded products.