China Suppliers Factory for High-Efficiency Front Protective Plate Mould with Hot Runner System
This mold is a large injection mold specifically designed for automotive front protective panels (such as A-pillar upper panels). By optimizing the gating system and core-pulling mechanism, it solves the problems of difficult filling of thin-walled parts and easy breakage of angled ejector pins. Both the mold cavity and core material are made of P20 steel, and the mold base is made of 45# steel. It is equipped with a water cooling system and a hot runner + side gate combination injection system to ensure high precision and durability.
◎ Molding cycle ≤ 30 seconds, hot runner system reduces waste and improves efficiency.
◎ The double-slanted push rod core-pulling mechanism enhances demolding stability and reduces the risk of breakage.
◎ P20 steel mold cavity/core material + 45# steel mold base, balancing hardness and impact resistance.
◎ The water cooling system quickly controls the temperature, ensuring the dimensional stability of the plastic parts.
◎ Two alveoli (right tooth + left tooth) to accommodate complex structures and reduce secondary processing.
Residences and Courtyards
Decoration of gate towers for villas and rural residences to enhance the aesthetics of building entrances.
Public Buildings
Landscape gate towers at the entrances of parks and scenic areas require complex patterns and high durability.
Project Facades
Decorative door frames for commercial projects and municipal engineering projects, combining practicality and aesthetics.
| 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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Q What material is used for the mold cavity and core in this automotive injection mold?
Both the mold cavity and core are made of P20 steel, which offers an excellent balance of hardness, toughness, and machinability — ideal for high-volume automotive part production.
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Q How long is the molding cycle for this injection mold?
The molding cycle is optimized to ≤ 30 seconds, thanks to the hot runner system and efficient water cooling design, significantly improving production throughput and reducing material waste.
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Q What type of gate system does this mold use?
This mold uses a hot runner system combined with a normal side gate. This combination reduces waste material, shortens cycle times, and ensures consistent fill quality for thin-walled automotive panels.
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Q How does the cooling system work in this mold?
The mold is equipped with a water-based cooling system that rapidly controls the mold temperature during each cycle. This ensures consistent dimensional stability of the finished plastic parts and prevents warping or deformation.
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Q What is the number of cavities and how does the ejection system work?
This mold features 2 cavities — one for the right-hand part and one for the left-hand part — allowing both components to be produced simultaneously. The ejection system uses a combination of pin ejectors and an ejection plate for reliable and stable demolding.
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Q What applications is this injection mold suitable for?
This mold is specifically designed for automotive front protective panels, such as A-pillar upper panels. It is also applicable for residential and public building gate decorations, project facade door frames, and other parts requiring complex geometry, high dimensional accuracy, and long-term durability.