Vacuum Casting

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.

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