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Why is Vacuum Casting the Best Prototyping Method for Low Volume Production?

by Nice Rapid | Nov 25,2022 | Vacuum Casting

When you're ready to take your product from prototype to production, you can use a few different methods. This blog post will discuss vacuum casting and why it's the best option for low-volume production. Stay tuned for more information!

Vacuum casting is a popular choice for low-volume production because it offers several advantages over other methods:

  • It's relatively quick and easy to set up, so you can get your product to the market faster.
  • It produces high-quality parts that are indistinguishable from injection-molded parts.
  • It's very cost-effective to keep your production costs down.

Relatively Quick and Easy to Set Up

As we mentioned, one of the main advantages of vacuum casting is that it's relatively quick and easy to set up. In most cases, you only need mold and a vacuum chamber. Once you have these two things, you can start producing parts immediately.

This is a big advantage over other methods, such as injection molding, which can be expensive and time-consuming. With vacuum casting, you can get started right away with a minimum investment. Additionally, vacuum casting is very versatile and can be used to produce parts of all shapes and sizes.

Vacuum casting parts

Produces High-Quality Parts

Vacuum casting is popular because it offers many advantages over traditional manufacturing methods. One advantage of vacuum casting is that it produces high-quality parts. The parts are indistinguishable from injection molded parts, so they're perfect for applications where quality is critical. In addition, the vacuum casting process ensures that all the parts are identical, so you don't have to worry about inconsistencies.

Stable Dimensional Accuracy

Room temperature vulcanized silicone rubber (RTV silicone) is a versatile material that can reproduce the delicate features of master parts with excellent fidelity and dimensional accuracy. Standard copying accuracy for RTV silicone can be controlled within 0.15mm/100mm, with the highest precision reaching 0.05mm. RTV silicone also has excellent chemical stability and extremely low shrinkage, making it an ideal material for many applications.


Vacuum casting is a very cost-effective way to produce parts. In most cases, it's much cheaper than injection molding, and it doesn't require the same level of investment. It means you can keep your production costs down, which is always a good thing. Vacuum casting is also a very versatile process, which means that it can be used to produce parts of all shapes and sizes.

Can be Used for Complex Parts

Trial production of complex process structure parts can be made easier with the silicone mold of vacuum casting. This mold can be easily remolded without the need to design a draft angle, meaning the complex structure can be directly cast from the mold. In addition, the silicone mold makes it easy to add metal inserts or color the casting, making it ideal for various applications.

As you can see, vacuum casting has many advantages for low-volume production. Vacuum casting is the perfect solution if you're looking for a quick, easy, and cost-effective way to produce high-quality parts. Contact us today to learn more about our vacuum casting.

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