Gravity die casting
A major advantage of gravity die casting is its repeatability and cost effectiveness. Maycast-Nokes can supply fully-machined and finished castings, while its team of skilled and knowledgeable engineers work closely with clients to advise on casting designs.
As this area of the business has seen growth over recent times we have now invested and created specific areas for gravity die storage, gravity die crucibles, hydraulic rig and tool maintenance equipment also including a dedicated overhead crane to enable us to take on larger and more complex parts in a bespoke and safer environment.
Gravity die casting frequently asked questions
Common questions about gravity die casting, including repeatability, production suitability and how we support machined and finished components.
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Gravity Die Casting is an excellent choice when you need consistent quality, good mechanical properties, and repeatable production. Because the molten aluminium is poured into a reusable metal die under gravity alone (no high‑pressure injection), the process offers a balance of accuracy, speed, and cost‑effectiveness.
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The rigid steel die provides better repeatability than sand moulds. The molten alloy cools much faster in the metal die creating a finer grain structure, improving strength. The reusable die allows for much quicker ‘open/close’ cycle times compared to sand casting.
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Yes – Gravity Die casting is suitable for medium‑to‑high volume production; Once the die is made, parts can be produced efficiently and consistently with a vastly improved surface finish when compared to sand casting.
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Yes – Alongside producing high‑quality aluminium castings, we also offer full machining and finishing — giving you a complete, production-ready component from a single supplier.
However, one important factor in this process is machinability: how easily a material can be cut and shaped to achieve an accurate part.
While aluminium is generally very machinable, different alloys behave differently. Some machine quickly and cleanly, while others require slower cutting speeds or more robust tooling. That’s why alloy selection plays a key role in achieving the best machining performance, lead times, and final surface quality.
By managing the complete process, from casting to machining, we help you choose the right alloy from the start, ensuring efficiency, consistency, and a high‑quality finished part.
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Yes, absolutely. We collaborate closely with you to optimise your designs specifically for the Gravity Die Casting process. Our team brings many years of hands-on experience in designing and operating gravity mould’s. To ensure you get the absolute best results, we also partner with specialised third-party casting engineers for highly complex geometries.
Intelligent, fully‑optimised design doesn’t just create consistent castings – it can unlock meaningful cost reductions, helping you achieve a highly cost effective final product.
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Quality assurance
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