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Vacuum Casting

What is Vacuum Casting?

Vacuum casting, also known as silicone molding, is a technique that uses a master model (prototype) to create high‑quality silicone molds in a vacuum environment. These molds are then filled with materials such as polyurethane to produce small‑batch replica parts. It is especially suitable for rapidly producing tens of functional prototypes or end‑use parts with injection‑molding‑like quality without the need for steel tooling.

Why Choose Vacuum Casting?

Vacuum casting is the ideal choice when your project meets the following conditions:
◆ Small‑batch needs: Requires around 10‑50 parts, where metal tooling would be too costly or time‑consuming.
◆ High cost‑effectiveness: Achieves excellent appearance and performance at a fraction of the cost of injection molding tooling.
◆ Multiple materials and colors: Various polyurethane materials can simulate the final look and feel of ABS, PP, soft rubber, or even transparent plastics.
◆ Design validation: Prototypes can be used for market research, assembly testing, functional verification, and more.

Advantages of Vacuum Casting

◆ High replication accuracy: Faithfully reproduces fine features, textures, and details of the master model with controlled shrinkage and excellent surface quality.

◆ Wide material selection: Hundreds of two‑component polyurethane materials are available to simulate the mechanical properties, hardness, transparency, and even heat resistance of most engineering plastics.

◆ Fast turnaround: From receiving the master model to delivering the first batch of parts typically takes only several days to a couple of weeks, significantly accelerating product development.

◆ Outstanding cost efficiency: Silicone mold costs are far lower than metal tooling, making it a perfect solution for small‑batch production and reducing R&D and pilot‑run expenses.

How Does Vacuum Casting Work?

Step 1 Create a master prototype

Step 2 Produce a silicone mold

Step 3 Cut open the mold and remove the master

Step 4 Cast material under vacuum

Step 5 Cure and demold

Why choose Vacuum Casting with Xinsheng?

We fully support customized solutions tailored to your 2D/3D drawings and specific performance requirements. Whether for small‑batch customization or large‑scale production, we have optimized processes and strict quality control systems in place to ensure stable product performance, timely delivery, and cost advantages. Rely on our professional vacuum casting capabilities to meet your diverse production needs across different industries.

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