Shell Molding

Shell Molding is a high-grade version of sand casting, producing the highest quality of casting available with modern technology. In contrast to sand casting, in shell molding the sand is heated, so that when the resin sand touches the pattern, it creates a thin “shell” around it. This shell becomes the negative pattern forming two pieces. These two pieces are then mated to create a mold, into which molten metal is poured. The cast part is then retrieved by breaking the shell away from it.

  • Suitable for medium to large series runs or as few as 1,000 units.
  • Offers high dimension accuracy and stability (comparative to water glass investment casting).
  • High quality surface finish.
  • High production efficiency.
  • Competitive unit pricing.

Carbon steel by shell

Ductile iron by shell

US Castings’ engineering department is available to consult on geometric complexity, surface finish, cost and other factors. US Castings’ expertise in Value-Engineering will help to achieve the desired result at the lowest possible unit or overall cost.

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