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What is Permanent Mold Casting?

Permanent Mold Casting

Permanent mould casting is a metal casting process in which reusable moulds are used for repeated production. It is one of the oldest manufacturing processes and is still widely used today. This method of casting allows for precise repeatability, higher dimensional accuracy, and better surface finishes than other types of metal casting processes. Let’s take a look at what permanent mould casting is and its uses.

What is Permanent Mold Casting?

Permanent mould casting is a form of metal casting where molten metal is poured into reusable moulds made from steel or cast iron. These moulds are designed with intricate details that can be replicated over and over again with each production cycle, allowing for precise repeatability in the finished products. The moulds can be either sand cast or die cast depending on the type of material being used and the complexity of the design.

The process begins by heating a specific type of metal until it reaches its liquid state, then pouring it into the pre-heated moulds, where it cools until it solidifies into its desired shape. After cooling, the moulds are separated and removed to reveal the finished product. It is important to note that during this process, no additional machining or finishing work is required as all details have already been incorporated into the mould itself prior to pouring.

Permanent Mold Casting Uses

Permanent mould casting has many uses across various industries, including automotive, aerospace, electronics, medical, military, and power generation. This casting method offers higher dimensional accuracy than other types of metal casting due to its ability to replicate intricate details with each production run. Additionally, it produces smoother surfaces than other types, which reduces the need for post-machining operations such as grinding or polishing, which helps reduce lead times and costs associated with production runs.

It also creates better strength-to-weight ratios when making components with complex shapes which makes them ideal for use in applications requiring lightweight parts that must maintain their structural integrity under extreme conditions, such as aerospace components or automotive engines.


Overall permanent mould casting is an efficient way to create accurate replicas with precision and smooth surfaces from any type of material quickly and cost-effectively. This method offers many advantages over traditional sand casting methods, including greater dimensional accuracy, improved surface finishes, quicker turnaround times, stronger parts, and less post-machining work required. To those looking for an efficient way to produce complex components without sacrificing quality, permanent mould castings may be the perfect solution. With proper maintenance, these moulds can last indefinitely, offering endless possibilities for your products.

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