Sand Casting

The inexpensive production method for metals

With a long experience in producing products using sand casting, you’ll get a production partner, which knows how to produce for quality.

In need of sand casting?

Get in touch, and let’s discuss your project.

Ross Taylor

Managing Director

Sand casting is one of the oldest and most widely used casting methods. In this process, molten metal is poured into a sand mould. This process can produce a wide range of metal parts with complex geometries. The mould is formed by packing sand around a pattern of the item to be cast, creating a cavity. Once the metal solidifies, the sand mould is broken to reveal the cast part.

Sand casting has some possibilities regarding tolerances, materials and a set of benefits and downsides that should be considered when choosing this production process; these are:

Sand casting’s greatest advantage lies in its flexibility and cost-effectiveness for small to medium production runs. It can accommodate almost any alloy and is well-suited for creating complex shapes and large parts. The relatively low cost of mould materials and the ease with which they can be modified make sand casting ideal for prototypes and custom projects.

Versatility: Sand casting can create parts of virtually any size, from small components to very large objects.

Complex Geometries: It’s capable of producing parts with complex internal and external geometries.

Cost-Effectiveness: The process is relatively inexpensive compared to other casting methods, especially for small batch sizes.

Material Flexibility: A wide range of metals can be cast, offering flexibility in material selection.

Tooling Cost: Lower initial tooling costs make it suitable for prototypes and small production runs.

Parts produced through sand casting typically have a rougher surface finish and may require additional machining or finishing to meet precise specifications. The method can also result in porosity in the final product, which may affect mechanical properties. Moreover, sand casting is labour-intensive, particularly in mould preparation, and environmental considerations must be managed regarding sand disposal.

Surface Finish and Tolerance:
Sand casting generally produces parts with a rougher surface finish and lower dimensional accuracy compared to other casting methods.

Labor Intensive: The process can be labour-intensive, especially for making moulds.

Porosity: Cast parts may have porosity, which can affect mechanical properties.

Mould Deterioration: The sand mould deteriorates with repeated use, affecting the quality of subsequent casts.

We’re typically able to achieve tolerances within the range of ± 0.125 inches for the first inch and ± 0.005 inches for each subsequent inch.
However, tighter tolerances can be challenging and may require additional machining or post-processing.

Don’t hesitate to contact us if you have any special requirements for tolerances.

Sand casting is compatible with a wide array of metals, including but not limited to:

  • Iron (Gray iron, ductile iron)
  • Steel (carbon steel, alloy steel)
  • Aluminium and aluminium alloys
  • Brass, bronze, and other copper alloys
  • Magnesium alloys

Sand casting has specific use cases where it’s more suitable. These include:

  • Producing large parts that other casting methods cannot handle efficiently.
  • Low to medium production runs where the higher cost of other casting methods cannot be justified.
  • Prototyping and experimentation, where the lower tooling cost allows for cost-effective modifications.
  • Manufacturing parts with complex geometries that would be difficult, expensive, or impossible to achieve with other methods.

We’ve used sand casting to deliver products to companies worldwide and the highest quality standards.

Some of the companies that we’ve delivered sand casted products to are:

SinoScan hjælper med produktudvikling, ingeniør arbejder og produktion I SinoScan

Sand casted products that we’ve previously delivered

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