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PP+EPDM Car Bumper
This injection molded bumper is a large-scale precision injection part designed for automotive safety protection and exterior decoration. Made of automotive-grade modified PP material and formed in one piece via large/extra-large injection molding equipment, it features high impact resistance, weather resistance and dimensional stability. It meets the front/rear bumper requirements of various vehicle models and supports post-processing such as painting and accessory assembly.
- Machining Process: Large/Extra-Large Precision Injection Molding
- Material: PP+EPDM (Impact & Weather Resistant)
- Accuracy: ±1.0 mm
- Surface Finish: As-molded matte black, custom painting/texture treatment optional
- Production Capacity: Prototyping, Low-volume trial production, Mass production
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We specialize in custom manufacturing of large-scale precision injection parts, equipped with multiple large/extra-large injection molding machines and large mold processing systems, with over ten years of experience in automotive component injection molding. The product tolerance is steadily controlled within ±1.0 mm, with a daily output of 300 pieces per production line. We provide one-stop services from mold development and injection molding to painting and assembly, serving customers in OEM, auto modification and after-sales markets.
Technological Process
- Mold Design & Fabrication: Optimize structure based on vehicle data and manufacture large high-strength injection molds to ensure product dimensions and assembly accuracy.
- Material Preparation & Modification: Select automotive-grade PP raw materials, add modifiers according to the formula, and dry them to avoid injection molding defects.
- Large-Scale Precision Injection Molding: Melt materials at high temperature, inject into molds under high pressure, and form the bumper main body in one piece after long pressure holding and cooling.
- Deburring & Trimming: Remove gates and burrs, and finely trim edges, mounting holes and buckle structures to ensure assembly compatibility.
- Surface Treatment (Optional): Conduct custom processing such as painting, texture transfer and polishing as required.
- Full Inspection & Delivery: Inspect product dimensions, appearance, strength and assembly compatibility, then pack and deliver qualified products.
Core Advantages & Applications
Common Applications
- OEM Matching: Bumper production for new vehicles at original equipment manufacturers
- After-Sales Replacement: Replacement bumpers for accident-damaged and old vehicles
- Modification Market: Personalized exterior modification bumpers and sport-style body kits
- Special Vehicles: Protective bumpers for commercial and engineering vehicles
Specification Table
| Parameter | Details |
| Material | Standard Automotive-Grade Modified PP (Impact & Weather Resistant) |
| Machining Process | Large/Extra-Large Precision Injection Molding |
| Dimensional Tolerance | ±1.0 mm (Custom precision available) |
| Surface Finish | As-molded matte black, custom painting/texture transfer/polishing optional |
| Color | Custom per customer color code, supporting solid/metallic/matte paint |
| Size Range | Custom per vehicle data (Regular length: 1000mm-2000mm) |
| Custom Options | Vehicle model adaptation, structural openings, buckle positions, paint colors, accessory mounting points |
| Temperature Resistance | -40℃ ~ +85℃ |
| Quality Control | 100% visual inspection, full inspection on key dimensions, impact test and high/low temperature aging test verification |
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