Bumper Mold
Bumper Mold – High-precision Automotive Exterior Injection Mold
The bumper mold is a large-scale, high-strength injection mold designed for producing automotive front and rear bumpers with excellent structural integrity, impact resistance, and surface appearance.
Engineered for high-output production and long service life, the bumper mold provides precise dimensional control, optimized melt flow, and stable cooling performance, fully meeting the requirements of OEM automotive exterior parts.
Product Features
Large-size Mold Structure
Designed to withstand high clamping force and large injection volumes required for bumper components.
Excellent Surface Appearance
Supports Class-A surfaces, paint-ready finishes, texturing, and scratch-resistant surfaces.
Optimized Melt Flow Balance
Hot runner and flow simulation ensure uniform filling of long bumper parts without distortion or short shots.
High-strength Mold Materials
Cavity and core commonly use premium-grade steels:
• 718H
• 1.2738
• NAK80
• 2344ES / H13ESR (for high-strength inserts)
Ensures durability under high injection pressure.
High-efficiency Cooling System
3D cooling channels, baffles, and optimized water paths provide:
• Faster cycle time
• Better warpage control
• Improved dimensional stability
Reinforced Ejection System
Large ejector blocks, plates, air valves, and smooth ejection mechanisms prevent deformation during part release.
Mold Applications
The bumper mold is suitable for manufacturing:
• Front bumper
• Rear bumper
• Fog lamp surrounds
• Grille connection structures
• Energy absorber components (if integrated)
These parts require high dimensional stability and strong impact performance.
Manufacturing Advantages
- High-precision CNC machining
- Comprehensive mold flow analysis (Moldflow / Moldex3D)
- Hardened cavity & core for extended service life
- Support for high-gloss, texture, and paint-ready surfaces
- Thick-wall and long-flow design capability
- Strong structural design to prevent deflection in high-pressure molding
Recommended Materials
Bumper molds process the following automotive plastics:
- PP+EPDM
- PP+TPO
- ABS
- PC/ABS
- Impact-modified PP compounds
These materials ensure durability and crash performance of final bumper parts.
Why Choose Our Bumper Mold?
- Stable production cycle time
- Long mold life with minimal maintenance
- Optimized cooling for large exterior parts
- Clean surface finish suitable for painting
- Reliable mechanical performance for OEM/Tier 1 programs
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