China Front Protective Plate Mold Suppliers - High-Efficiency Factory for Automotive A-Pillar Parts Manufacturing
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.
High-efficiency Production
◎ Molding cycle ≤ 30 seconds, hot runner system reduces waste and improves efficiency.
Structural Optimization
◎ The double-slanted push rod core-pulling mechanism enhances demolding stability and reduces the risk of breakage.
Durable Material
◎ P20 steel mold cavity/core material + 45# steel mold base, balancing hardness and impact resistance.
Precise Cooling
◎ The water cooling system quickly controls the temperature, ensuring the dimensional stability of the plastic parts.
Multi-alveolar Design
◎ 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 |
Contact us now for a quote and experience the difference of working with the best in the business.
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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 excellent hardness, wear resistance, and machinability — ideal for high-precision automotive part production.
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Q What is the typical molding cycle time for this mold?
The molding cycle is ≤ 30 seconds per shot, achieved through the optimized hot runner system and efficient water cooling design, ensuring high-volume production efficiency.
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Q How does the cooling system work in this injection mold?
The mold uses a water-based cooling system with internal channels that rapidly regulate mold temperature during each cycle, maintaining dimensional accuracy and reducing warpage of plastic parts.
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Q What type of gate system is used, and why?
A hot runner system combined with a normal side gate is used. This combination minimizes material waste, reduces cycle time, and ensures consistent filling of thin-walled sections in the automotive protective panel.
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Q How many cavities does this mold have, and what does that mean for production?
The mold features 2 cavities — one for the right-hand part and one for the left-hand part. This dual-cavity design allows both mirror-image components to be produced simultaneously, improving output and reducing per-unit cost.
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Q What measures are taken to prevent ejector pin breakage during demolding?
The mold incorporates a double-slanted push rod core-pulling mechanism, which distributes demolding forces more evenly across the part surface. This significantly enhances demolding stability and greatly reduces the risk of angled ejector pin breakage.