Vacuum casting - description of the process

Vacuum casting uses a master model, which is generally created using stereolithography (SLA), to manufacture a silicone rubber mold. The resulting cavity for this tool is filled with a two-component PU resin (polyol and isocyanate) with a rising and gating system under vacuum. After the plastic cures, the created parts are demolded and prepared. The discharge quantity amounts to about 25 pieces.
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Benefits of vacuum casting

  • Large selection of materials
  • Casting material matches the mass-production material
  • Extremely complex components are possible
  • High mechanical strength

Machine capacities

1 x Schüchl UGM 700
Max. mold size 900 x 700 x 950 mm

1 x Schüchl UGM 850
Max. mold size 1,000 x 850 x 950 mm

3 x Schüchl UGM 690
Max. mold size 965 x 690 x 720 mm

 

Materials for vacuum casting

Elastic, high-strength, transparent or temperature-resistant materials

  • FIT 45 – 30 A / FIT 45 – 40 A / FIT 45 – 50 A / FIT 45 – 60 A / FIT 45 – 70 A / FIT 45 – 80 A / FIT 45 – 95 A
  • PU 55 / PU 56 / PU 57 / PU 57 GF / PU 63 / PU 65 / PU 65 GF / PU 67 / PU 68 GF / PU 71 / PU 72 / PU 81 / PU 82
  • SI 40A / SI 60A

 

Post-processing options

  • Finishing
  • Painting
  • Polishing
  • Assembly
  • Metal coating

 

Applications of vacuum casting

  • For the rapid creation of complex plastic components
  • Prototypes, functional components
  • Average quantities
  • Close-to-production quality and material
Applications of vacuum casting

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