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High-Precision Plastic Mould for Bumpers - China Suppliers & Factory for Automotive Parts
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High-Precision Plastic Mould for Bumpers - China Suppliers & Factory for Automotive Parts

Plastic molds for bumpers are high-precision tools specifically designed for injection molding automotive plastic components, particularly car bumpers. Manufactured in China from durable P20 steel, these molds feature an advanced hot runner system and cutting-edge water cooling technology. With a modular design, they are optimized to enhance efficiency and sustainability in mass production. Our factory ensures that these exceptional molds deliver consistent part quality, extended tool lifespan, and reduced cycle times, making them perfect for high-volume manufacturing of plastic bumpers. The combination of precise engineering and robust materials guarantees optimal performance and reliability in large-scale production, making us a leading supplier in the automotive industry

    Product Overview

    This mold uses injection molding to process PP/ABS and other raw materials into highly consistent car bumpers. Its core structure includes a P20 steel mold core, a 45# mold base, a hot runner gate, and a double-groove ejection system. Optimized cooling channels can shorten the molding cycle by 50%, meeting automotive industry standards for light weighting and impact resistance. It is suitable for mass production of exterior parts such as front/rear bumpers and door panels.

    Product Features

    1

    High Precision and Durability

    P20 steel mold core, dimensional error ±0.2mm, lifespan over one million cycles.

    2

    High-Efficiency Cooling

    The water cooling system reduces the molding cycle from 120 seconds to 60 seconds.

    3

    Flexible Configuration

    Supports multiple cavities and adjustable partitions to adapt to different product specifications.

    4

    Advanced Process

    Electrical discharge machining/wire cutting, surface roughness ≤ Ra0.4μm.

    5

    Stable Demolding

    The dual system of pin ejector and ejector plate reduces the risk of mold sticking.

    Use Cases

    Automobile manufacturing

    Automobile Manufacturing

    Mass production of bumpers for gasoline and new energy vehicles to meet pedestrian protection and lightweight requirements.

    Customization needs

    Customization Needs

    Quickly adjust molds to adapt to model changes or special designs.

    Industrialized production

    Industrialized Production

    A single mold can support continuous injection molding of more than 500,000 bumpers.

    Technical Parameters

    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

    Conclusion

    Contact us now for a quote and experience the difference of working with the best in the business.

    Frequently Asked Questions

    Q What materials can this car bumper mold process?
    This mold is designed to process PP (polypropylene), ABS, and other thermoplastic raw materials commonly used in automotive exterior parts, ensuring highly consistent output quality.
    Q What is the expected lifespan of this injection mold?
    The mold features a P20 steel mold core with a dimensional error of ±0.2mm and is engineered for a lifespan of over one million injection cycles, making it ideal for high-volume mass production.
    Q How does the cooling system improve production efficiency?
    The optimized water cooling system significantly reduces the molding cycle from approximately 120 seconds to 60 seconds — a 50% improvement — which greatly increases throughput in mass production environments.
    Q Can the mold be customized for different bumper designs or vehicle models?
    Yes. The mold supports multiple cavities and adjustable partitions, allowing it to be quickly reconfigured to accommodate different vehicle model changes or special design requirements.
    Q What ejection system does this mold use, and why does it matter?
    The mold uses a dual ejection system combining a pin ejector and an ejector plate. This combination minimizes the risk of mold sticking, ensures clean part release, and reduces downtime during high-volume production runs.
    Q How many bumpers can a single mold produce continuously?
    A single mold is capable of supporting continuous injection molding of more than 500,000 bumpers, making it a highly cost-effective solution for large-scale automotive manufacturing and industrialized production lines.