Vacuum Casting

Principle of Vacuum Casting

• At first, the so called master model is created by means of 3D printing using FDM technology. However, the part supplied by the customer can be used as the master model instead.
• The master model is embedded in silicone and after its removal the mould for casting is created which can be used multiple times.
• Casting is carried out in the vacuum chamber. A special two-component material on the basis of polyurethane resin is used.

Advantages of Vacuum Casting Technology

• Possibility of casting parts of complicated shapes, thin-wall parts or parts with negative bevels.
• Production of small series of prototype or final parts (from dozens up to hundreds of pieces).
• Favourable production costs in comparison with plastic injection moulding – the production of metal moulds is unnecessary.
• Fast production – a matter of days.
• The accuracy of production is comparable with the accuracy of parts manufactured by plastic injection moulding.
• A wide range of possibilities for final surface treatment.

Suitable Applications

• Production of plastic prototype parts.
• Parts for dimension and function tests.
• Design studies.
• Low-series production of spare parts for which the original equipment is not available.

Equipment

• Evektor has the MK Vacuum Casting Chamber System II produced by MK Technology
• Maximum weight of a manufactured part: 6 000 g

• Working area: 850 x 850 x 800 mm
• Working area (expansion module): 850 x 700 x 1800 mm
• Max. volume of product: 5 l