Vacuum casting: precise prototypes and small series in perfection 

Discover the efficient process flow

The vacuum casting process is a flexible and efficient method for producing high-quality plastic prototypes and small series.


The process begins with a master model, which is usually produced using 3D printing technologies such as stereolithography. In the vacuum casting process, this model is used to create precise and detailed replicas. Every component that is produced using vacuum casting goes through the following steps:

Model preparation

First of all, we need a master model of your product, ideally from a 3D printing process. Our experts will carefully check the feasibility of your 3D data and make any necessary adjustments in close consultation with you.

Mold production

To produce the casting mold, the master model is placed in a container and encapsulated with liquid silicone. As soon as the silicone has hardened, the mold is opened along a predefined parting line and the master model is removed. This mold now serves as a negative for the subsequent cast parts.

Casting process

In the actual casting process, the selected synthetic resin is poured into the silicone mold under vacuum. The vacuum is used to avoid air bubbles and other defects and to ensure the high quality of the cast parts. The resin is cured at room temperature or in a special oven.

Demolding and finishing

Once the resin has fully cured, the casting is removed from the mold. This is followed by steps such as deburring, grinding and painting to finish the part. Further surface treatments can also be carried out if required.

Our reference products: Technology - Vacuum Casting

HVAC Part
Material: Nylon + GF

Vacuum Cleaner
Material: ABS

Lens cover
Material: PC (Tinted)

Materials

All of the materials we supply are polyurethane (PU) based synthetic resins. Using these, we can imitate the optical, haptic and mechanical properties of the following materials:

ABS

PC

PP

PMMA

Nylon

Rubber

Finishing the components


If desired, parts can then be finished in a variety of ways. We can finish your workpieces:


  • Painting
  • Polishing
  • Mechanical finishing
  • Inserting metal threads