Vacuum moulding

Very accurate thin wall sand castings can be produced by using vacuum moulding techniques. Parts are similar to high-pressure die-castings. A vacuum mould is used, held in shape with foil.

  • Accurate castings with precise tolerances
  • No unloading required
  • Thin walls possible, down to 2 mm
  • In small numbers, tens to hundreds of units per year
  • Very good surface quality
  • Low modelling cost compared to high-pressure moulds

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