Hollow Shells

Highly Engineered Hollow Shells

Trelleborg’s highly engineered hollow shells, reduce weight in composite or syntactic materials, without compromise. With our unique engineering ability, we pick up where traditional glass microspheres filler stops.Our proprietary processing techniques allow the fabrication of hollow shells made of unconventional materials such as ceramic and metal. Our custom and stock hollow shells will increase your design space and allow you to achieve mission critical performance where it counts. Let us help you make your product or material lighter, stronger, more shock absorbent and fire proof.

Tailored or standard stock

Tailored surface finish (rough or smooth)

Suitable for use at high temperatures, up to 1600°C

Hydrostatic crush strengths over 20KSI



Wide range of materials available

Wide range of shapes

Wide range of sizes, 0.5mm - 20mm

Materials for Hollow Shells

  • Alumina
  • Aluminosilicate
  • Boron Carbide
  • Cordierite
  • Low Alloy Steel (4140)
  • Maraging Steel
  • Porcelain
  • Silicon Carbide
  • Stainless Steel
  • Yttrium Oxide
  • Yttrium Stabilized Zirconia

Shapes for Hollow Shells

  • Cones
  • Oblate spheroids
  • Right circular cylinder
  • Right rectangular cylinder
  • Right triangular cylinder
  • Sphere
  • Triangular prisms

Examples of composite / syntactic materials using our Hollow Shells




Power generation plants

Space equipment

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Hollow Shells in the aerospace industry

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Hollow Shells in the defense industry

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Hollow Shells in the medical industry

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Hollow Shells in power plants

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Hollow Shells in the offshore industry


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