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Foundry: Mould making

The foundry produced cast-metal machinery parts, or castings. Here, workers poured molten steel from a furnace into prepared moulds made from sand.

A worker making a casting mould using sand, 1925

Factory to Farm: Making Agricultural Implements in Australia, about 1925. National Film and Sound Archive of Australia.

Front wheel fork saddle

The saddle for the front wheel fork of the harvester would have been cast in the foundry.

A colour photo of the saddle for the front wheel fork of a Sunshine stripper harvester.
Photo: Lannon Harley.

Casting the saddle for the front wheel fork of the harvester

  1. A pattern of the saddle, made from metal or wood, is used to make a mould for the casting.
  2. A box is placed over each side of the pattern to encase it.
  3. Sand mixed with oil is packed into each box and a funnel made through the sand to the pattern.
  4. The boxes are separated and the pattern removed from the sand mould.
  5. A sand core is added to create the saddle's centre cavity.
  6. The boxes are fitted securely back together and molten steel poured into the mould through the tunnel.
  7. The casting is allowed to cool and harden and is then removed from the sand mould.
A diagram showing pictures and descriptions for the seven stages in the process for casting the saddle for the front wheel fork of the Sunshine stripper harvester.
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