1. Mold Base

The mold base is the foundation of a plastic bumper mold and provides support for all other components. It is typically made from high-strength steel or aluminum to ensure stability and precision during the injection molding process. The base holds the cavity and core inserts in place, aligning them accurately to create consistent bumper shapes and dimensions.

2. Core and Cavity Inserts

The core and cavity inserts form the actual shape of the bumper. The cavity creates the external profile, while the core defines the internal structure. These inserts are carefully machined to meet the precise design specifications of the bumper. They are often made from hardened steel to withstand repeated injection cycles and maintain surface quality.

3. Ejector System

The ejector system is responsible for removing the finished bumper from the mold. It typically includes ejector pins, plates, and rods, which work together to push the molded part out smoothly without causing damage. A properly designed ejector system ensures efficient production and prevents deformation of the bumper during removal.

4. Cooling System

The cooling system regulates the temperature of the mold during the injection process. It usually consists of channels or pipes through which coolant flows, helping the plastic solidify evenly and quickly. Effective cooling improves cycle time, maintains dimensional accuracy, and enhances the surface finish of the bumper.

https://www.bumpermould.net/product/bumper-mould/2018-bmw-three-series-plastic-injection-auto-car-front-bumper-mould.html
Mould Name    BMW Three Series Car Front Bumper Mould
Material    PP+EPDM(Contraction: 1, 5%)
Bumper Size    1800*510*460mm
Steel For Cavity &. Core    P20
Mould Base    C40
NOs. of Cavity    1*1
Injection System    Yudo 5 direct injection gates
Ejection System    Ejector pins, angle lifters
Mould Standard    OEM/HASCO
Mould Estimated Size    2200 x 950 x 1000mm
Mould Weight    12500KG
Injection Machine Size    1850T