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Die Casting vs Mold Casting – What’s the Difference

Die Casting VS Mold Casting

If you’re looking to produce metal parts or components for your product, you may have encountered the terms “die casting” and “mould casting.” Which type of casting should you use? It depends on your project requirements, budget, and desired outcome. Let’s take a closer look at each type of casting process to determine which one is right for you.

Die Casting

Die casting involves creating a metallic shape by pouring molten metal into a reusable die or mould. The die is usually made from steel or aluminium, and it can be used multiple times. This process gives the part a smooth finish, and there are minimal machining operations required once the part is removed from the die. Die casting also offers greater dimensional accuracy compared to sand-casting. Additionally, this process allows for more complex designs with intricate details that would otherwise not be possible with other types of fabrication processes. The downside is that die-casting requires expensive tools, which makes it more expensive than mould-casting in many cases.

Mould Casting

Mould casting involves shaping molten metal into a desired shape using sand moulds instead of dies or moulds made from steel or aluminum. This process offers greater flexibility than die-casting since it does not require costly tooling and expensive dies; however, it’s also less precise and lacks the detail that can be achieved with die-casting. Mould castings generally require additional machining operations after they are removed from the mould, as well as post-cast finishing treatments such as heat treatment or painting, in order to achieve an acceptable product quality level.

Difference Between Die Casting and Mold Casting

  • Die casting is a process that uses high pressure to force molten metal into a mould.
  • Mold casting is a process that uses gravity to fill a mould with molten metal.
  • Die casting produces parts that are more precise and have a better surface finish than those produced by mould casting.
  • Die casting is typically more expensive than mould casting.
  • Mold casting is best suited for low-volume production, while die casting is best suited for high-volume production


When deciding between die-casting and mould-casting for your project, consider your budget, timeline, desired outcome, the complexity of design, and turnaround time needed for production runs. Die-casting offers greater accuracy but requires costly tooling, while mould-casting offers greater flexibility but lacks precision when compared to die-casting. Whichever process you choose for your project will depend on what factors are most important to achieving your desired outcome in the most cost-effective manner possible. Understanding the differences between these two types of metal fabrication processes will help ensure that you make an informed decision about which method is best suited for producing your parts or components.

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