Low Volume Production China Vacuum Casting

Vacuum Casting is a rapid prototyping technique commonly used to manufacture small batches of plastic parts or prototypes. The process uses silicone molds into which liquid polymers, such as ABS or other materials, are poured and cured in a vacuum environment, resulting in a highly accurate final product. Vacuum casting is particularly suitable for initial product validation, prototyping, and small production runs.

Vacuum Casting Process

Get the 3D model ready

First, a 3D model of the product needs to be prepared. This can be generated by Computer Aided Design (CAD) software to ensure that the product design meets requirements.

Making the master part (SLA or CNC machining)

Based on the 3D model, a master part is created using SLA (stereolithography) or CNC (numerical control machining) technology. The master mold is the basis for the production of silicone molds.

Forming the mold

When the plastic part is immersed in silicone, the silicone will completely encapsulate it under pressure to form a mold. After a certain period of time, the silicone will cure and form a mold that can be used for subsequent casting.

The master mold is ready

Once the silicone mold is complete, the master part can be removed to obtain a reusable mold.

Injection of polyurethane material and casting under vacuum

The selected ABS or other plastic material is injected into the silicone mold and cast under vacuum. The vacuum removes any air bubbles that may occur during the casting process, thus ensuring a smooth surface and high precision in the finished product.

Removing the final product from the mold

After a certain period of curing, the final part will be removed from the mold, completing the entire vacuum casting process.

Materials Available for Vacuum Casting Services

A variety of materials can be used in the vacuum casting process, including but not limited to the following:

• ABS (Acrylonitrile Butadiene Styrene)

• PP (Polypropylene)

• POM (Polyoxymethylene)

• PMMA (Plexiglass)

• PC (Polycarbonate)

• PU (Polyurethane)

• TPU (Thermoplastic Polyurethane)

• Silicone rubber

These materials can be selected according to different product requirements and application areas to meet different physical property needs.

Price

We are committed to providing our customers with competitive prices by continuously optimizing and improving our processes to reduce production costs. With our own mold workshop in China, we can significantly save the time and money required for new product development, helping your company to achieve rapid prototyping and market testing of your products in a short period of time.

If you have vacuum casting needs, please feel free to contact us and we will provide you with customized solutions and a detailed quotation according to your requirements.