Vacuum Casting Capabilities

Polyurethane vacuum casting is a method for making high quality prototypes or low volumes of parts formed from inexpensive silicone molds. Copies made in this way show great surface detail and fidelity to the original pattern.


Hundreds of casting polymers are commercially available to reproduce any conceivable hardness and surface texture. It is also possible to make parts that are fully opaque, translucent or completely transparent depending on your application. See more information on available materials.


The finished dimensions of vacuum cast parts are dependent on the accuracy of the master pattern, the part’s geometry and the type of casting material used. Generally a shrinkage rate of 0.15% is to be expected.

Materials & Tolerances

Vacuum Casting Specifications

Basic InfoDetails
Min Part Size5mm (L) x 5mm (W) x 1mm (H)
Max Part Size750mm (L) x 500mm (W) x 350 mm (H)
Max Part WeightNet weight 1.8KG
Tolerances+/- 0.3% (with a minimum of +/- 0.3mm on dimensions smaller than 100mm)

Vacuum Casting Machines

#BrandMax Part Size (mm)
2TOP50 Vacuum Machine400 x 400 x 400
1TOP80 Vacuum Machine750 x 500 x 350

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