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China Suppliers Factory Mold for Front Protection Plate with Hot Runner System for High-Efficiency Production

The front protective plate mold features an advanced upper and lower mold matching structure, designed by leading China suppliers. It incorporates a hot runner gating system along with a double-slanted push rod core pulling mechanism, ensuring high-efficiency production cycles of 30 seconds or less. This innovative mold is specifically suitable for producing thin-walled plastic components, such as automotive A-pillar upper protective plates. Partner with a trusted factory in China to enhance your production capabilities and meet your manufacturing needs efficiently

Product Details

Product Overview

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.

Product Features

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.

Use Cases

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.

Technical Parameters

Cavity Material	KeyP20 Steel
Core Material	KeyP20 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

Conclusion

Frequently Asked Questions

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 provides an excellent balance of hardness, toughness, and machinability. The mold base is made of 45# steel, ensuring structural stability and cost efficiency for high-volume production.

Q What is the molding cycle time for this mold? ⌄

The molding cycle is ≤ 30 seconds, thanks to the hot runner system and an efficient water cooling design. This significantly reduces production time and minimizes material waste, leading to higher overall output efficiency.

Q How does the cooling system work and why is it important? ⌄

The mold uses a water-based cooling system that rapidly controls the mold temperature during each injection cycle. This precise temperature management ensures consistent dimensional stability of the finished plastic parts and reduces the risk of warping or shrinkage defects.

Q What type of gating system is used, and what are its advantages? ⌄

This mold uses a hot runner system combined with a normal side gate. The hot runner system keeps the plastic material in a molten state within the runner channels, which significantly reduces runner waste and improves injection efficiency. The side gate provides controlled filling for complex thin-walled automotive panels.

Q What is the double-slanted push rod core-pulling mechanism and why is it used? ⌄

The double-slanted push rod core-pulling mechanism is a specially optimized demolding structure designed to handle the complex undercut geometries of automotive A-pillar panels. It enhances demolding stability, distributes ejection forces evenly, and greatly reduces the risk of angled ejector pin breakage during high-cycle production.

Q Can this mold produce both left-hand and right-hand parts simultaneously? ⌄

Yes. The mold features a 2-cavity design with one right-hand tooth cavity and one left-hand tooth cavity. This multi-alveolar configuration allows both mirror-image parts to be produced in a single injection cycle, accommodating complex structures and reducing the need for secondary processing operations.

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