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Sand casting, including green-sand casting, is a traditional process that has been continuously modernised. It is suitable for manufacturing relatively simple parts in almost any metal. Sand moulding is a labour-intensive process that involves challenging working conditions. We subcontract the production of sand-cast parts to China, allowing you to benefit from highly competitive manufacturing costs while relying on our quality guarantee.

Our capacities in sand casting

  • Green-sand casting technology
  • Parts ranging from a few hundred grams to one tonne
  • Manual and automatic moulding lines available
  • Option to add cores to the moulds
  • Available materials:
    • Carbon steel
    • Stainless steel
    • Aluminium and non-ferrous metals
  • Surface treatment solutions
  • 3- and 4-axis machining centres
  • Assembly services

What is sand casting or green-sand casting?

Sand casting is a process used to manufacture metal parts by pouring molten metal into a mould made of sand, clay and bonding agents. The moulds are broken apart during the process and are therefore non-permanent.

Typical stages of sand casting include:

  1. Making a pattern from steel, resin or wood
  2. Forming the upper and lower parts of the sand mould around the pattern
  3. Hardening and bonding the sand
  4. Pouring molten metal into the mould cavity
  5. Removing the cast part by breaking the mould
  6. Applying heat treatment where required
  7. Finishing the parts, including blasting, deburring, machining and surface treatment

Advantages of sand casting

  • Relatively quick production setup compared with other casting processes
  • Suitable for almost all metals
  • Low tooling and setup costs

Disadvantages of sand casting

  • Sand mould imperfections may affect the shape of the parts
  • A small draft angle may be required to allow the pattern to be removed safely after moulding
  • Limited suitability for highly complex parts
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