Shenzhen Alu Rapid Prototype Precision Co., Ltd.

Die Casting (High-Pressure Die Casting):

Molten aluminum is injected under high pressure (up to 30,000 psi) into a steel mold (die) using cold or hot chamber machines (e.g., 180T to 3000T).

Ideal for high-volume production of lighting components like LED heat sinks and housings due to its precision, repeatability, and ability to produce complex geometries with tight tolerances (e.g., ±0.05 mm).

Benefits: Smooth surface finishes, minimal post-processing, and cost-effective for large runs.

Sand Casting:

Molten aluminum is poured into a sand mold, typically used for larger, less intricate parts or low-volume production.

Benefits: Lower mold costs and flexibility for custom designs.

Drawbacks: Rougher surface finish and less precision compared to die casting, requiring more machining.

Permanent Mold Casting (Gravity Die Casting):

Molten aluminum is poured into reusable metal molds under gravity, offering better strength and surface finish than sand casting.

Used for medium-volume production of lighting fixtures or structural components.

Investment Casting (Lost-Wax Casting):

A wax pattern is coated with ceramic, melted out, and replaced with molten aluminum.

Suitable for highly detailed or small lighting components but less common due to higher costs.