China Suppliers Triangular Lamp Shade Mold - High-Quality Factory Injection Mold with Cooling System
The core components of this mold (cavity and core) are made of 718 pre-hardened plastic mold steel. This steel typically has a factory hardness between 28-35 HRC, offering excellent polishing performance, wear resistance, and dimensional stability, making it ideal for manufacturing high-precision plastic products with stringent surface finish requirements. The mold base is made of 45# high-quality carbon structural steel, which, after heat treatment, exhibits excellent comprehensive mechanical properties and is commonly used in manufacturing support structures within molds.
High-precision forming
◎ 718 steel has excellent mirror polishing performance, which can ensure the smoothness and optical quality of the lampshade surface.
High durability
◎ The pre-hardening properties of 718 steel prevent deformation during heat treatment and improve the long-term stability of the mold.
High-efficiency cooling
◎ The water-cooling system design helps to shorten the injection molding cycle and improve production efficiency.
Reliable demolding
◎ The combination of pin ejectors and ejector plates ensures smooth and stable demolding of lampshade products.
This mold is particularly suitable for the mass production of automotive lighting fixtures (such as triangular headlight covers) or high-precision lighting equipment. The excellent properties of 718 steel enable it to meet the manufacturing requirements of plastic parts with high demands for surface finish, dimensional accuracy, and mass production life.
| Cavity material | 718 steel |
| Core material | 718 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 |
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Q What material is used for the cavity and core of this mold?
Both the cavity and core are made of 718 pre-hardened plastic mold steel, which offers a factory hardness of 28–35 HRC. This material provides excellent polishing performance, wear resistance, and dimensional stability, making it ideal for high-precision plastic products.
Q Why is 718 steel preferred for lampshade injection molds?
718 steel's superior mirror polishing capability ensures that the lampshade surface achieves the optical clarity and finish quality required for automotive or precision lighting applications. Its pre-hardened nature also eliminates the risk of deformation during heat treatment, extending mold service life.
Q How does the cooling system work in this mold?
This mold uses a water-cooling system integrated into the mold structure. The water channels efficiently extract heat from the molded part during each injection cycle, helping to reduce cycle time and significantly improve overall production efficiency.
Q What type of ejection system is used, and why?
The mold uses a combination of pin ejectors and ejector plates. This dual-method approach ensures that lampshade products are released from the mold smoothly and uniformly, minimizing the risk of deformation or surface damage during demolding.
Q What gating system does this mold use?
This mold employs a hot runner system combined with a normal side gate. The hot runner system ensures consistent plastic flow and reduces material waste, while the side gate provides reliable filling for the lampshade cavity geometry.
Q What industries or applications is this mold best suited for?
This mold is best suited for the mass production of automotive lighting fixtures — such as triangular headlight covers — and high-precision lighting equipment. It is designed to handle demanding requirements for surface finish, dimensional accuracy, and long production runs.