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Vacuum Casting

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About Vacuum Casting

Vacuum Casting / Silicon Molding is a manufacturing process in which a silicone mold is used to cast polymer or rubber parts, generally for prototyping or low-volume production. In this process, liquid resin in poured into the mold within a vacuum chamber to ensure a high quality final product.

This technology produces aesthetic parts with good mechanical properties.

Parts made through this process are used in industries like automotive, consumer products, electrical & electronics, equipments, and many others. Small or large parts, functional or aesthetic, can be feasibly produced through VC.

This process is ideal for production of parts before going into mass production with appearance and performance similar to injection molded parts.

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Process

  • A master pattern in created using 3D Printing.
  • Silicon mold is made using the master part.
  • Liquid resin is poured in the mould cavity inside a vacuum chamber.
  • The part is cured in an oven under right conditions.
  • The mould is then opened and the part is removed.
  • Finishing and painting as required is done.

Advantages

  • Cost effective: There is no need for expensive upfront tooling.
  • Versatility: Parts having complex geometries can be made.
  • Good surface finish: Parts have smooth surface.
  • Materials: Various materials are available, mimicking the properties of mass production materials.
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When to choose VC

  • Low volume production: Most suitable process for upto 100 parts, although more can be produced.
  • Time constraints: As there is no need for tooling, casting can start within a week and product can reach your market even before the tool for injection moulding is ready.
  • Frequent design changes: Absence of investment in metal tooling allows for frequent design modifications.
  • Product validation, marketing or pilot production: Possibility of fast iterations, quick deliveries, at low upfront cost.

Material Details

We have various material choices, all from globally reputed manufacturers. You can choose from:

  • ABS
  • PP
  • Nylon
  • PC Transparent
  • FR Grade
  • Rubber
  • And many others
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Material Details

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Machine Details

Parts within the size of 1000 x 700 x 650mm can fit in our machine. Larger parts are casted outside of the vacuum machine.