Multiple Casting Options to Meet Your Needs
Sigma Castings has significant expertise across various forms of castings and across a wide array of metals, all supported by in-house tooling and special purpose machine design and manufacturing. Our global footprint of 13 locations can help develop custom solutions to fit your specific product needs.
Our Casting Processes
High Pressure Die Casting
Die casting is the process of injecting a molten metal alloy into a die to form a die cast part. Sigma Castings has state-of-the-art aluminum and zinc die-casting equipment that can produce complex value-added sub-assembled components.
In the sand casting process, molten metal is poured into molds made of compressed or compacted sand. It is one of the most widely used casting methods and it is ideal for products with complex shapes and inner cavities.
Investment casting is an industrial process based on lost wax casting. Investment casting creates products with tight dimensional and geometric accuracy and is ideal for near-net-shaped products with complex shapes and high precision requirements.
Gravity Die Casting
In the gravity die casting process, metals with high melting temperature are poured into a preformed mold from above, filling the mold from the bottom up using gravitational force. It is ideal for products that require heat treating of the casting.
Sigma offers a number of services that can help with your Castings product needs.