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

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.

• 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.

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• 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. Its P20 steel mold core ensures stable performance across a wide range of injection molding materials.
• Q What is the expected lifespan of this injection mold?
  The mold is built with a P20 steel mold core capable of withstanding over one million injection molding cycles. This makes it well-suited for large-scale, long-term mass production of bumpers and other automotive exterior components.
• Q How does the cooling system improve production efficiency?
  The mold is equipped with an optimized water cooling system that reduces the molding cycle from approximately 120 seconds down to 60 seconds — a 50% improvement. This significantly increases production throughput and reduces per-unit manufacturing costs.
• Q Can the mold be customized to fit different bumper designs?
  Yes. The mold supports multiple cavity configurations and adjustable partitions, allowing it to adapt to different product specifications and model designs. It is suitable for both standard and customized bumper applications, including special OEM design requirements.
• Q What dimensional accuracy does this mold achieve?
  The mold achieves a dimensional error of ±0.2mm, with surface roughness ≤ Ra0.4μm achieved through electrical discharge machining (EDM) and wire cutting processes. This level of precision meets strict automotive industry standards for both aesthetics and structural integrity.
• Q What is the gating and ejection system used in this mold?
  The mold utilizes a hot runner system combined with a normal side gate for precise material flow control. For ejection, a dual system consisting of a pin ejector and an ejector plate is employed, effectively minimizing the risk of mold sticking and ensuring smooth, consistent part release during high-volume production.