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Sand Casting for Non Ferrous Castings

Sand casting offers the simplest medium for production of non ferrous castings, by pouring molten zinc, aluminium or copper into a sand mould.

When is Sand Casting used?

The sand casting process is chosen for the production of:

  • small numbers of castings
  • a complex shaped casting requiring intricate cores
  • a large non ferrous casting

Advantages of sand casting include:

  • low tooling costs
  • largest casting sizes achievable
  • very low gas porosity is possible
  • general versatility of the process is good 

Limitations include:

  • low casting rate
  • 3-5mm minimum wall thickness
  • poor linear tolerance (e.g. 4mm/m)
  • rough surface finish
  • coarser grain size than gravity die casting

Sand Casting

Sand casting offers simple medium for production and is chosen for the production of, small numbers of castings for complex shaped casting requiring intricate cores and large non ferrous castings.

Sand castings are suitable in all Aluminium, Zinc, and Copper Alloys.

Sand casting can be used for small and large production runs and is the cheapest casting process for small production runs.

The huge advantage of sand casting is the production of complex sand castings however the surface finish and tolerances of the finished casting are poor. Production times can also be a lot longer than other casting processes such as gravity die casting and high pressure die casting.

Get full information about the sand casting process and die casting processes or contact us today for expert sand casting advice.

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