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Vacuum Casting

Tuowei Precision offers vacuum casting for low-volume production and rapid prototyping, ensuring high-quality cast components.

Vacuum Casting
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Custom Vacuum Casting Services for Production-Grade Parts

At TUOWEI Precision, we provide custom vacuum casting services designed to deliver high-quality parts with exceptional accuracy and consistency. Backed by our ISO 9001:2015, ISO 13485, ISO 14001:2015, and IATF 16949:2016 certifications, we ensure strict quality standards are met throughout the process. Using silicone molds, we replicate master patterns—often produced through CNC machining or 3D printing—allowing us to create prototypes and low-volume production parts.

We work with a wide selection of polyurethane resins and elastomers, enabling us to mimic the look, feel, and performance of production-grade plastics. With our advanced capabilities, experienced team, and commitment to precision, TUOWEI Precision is your trusted partner for efficient and cost-effective vacuum casting solutions.

Vacuum Casting Capabilities

Tuowei provides precise vacuum casting services that enable the production of high-quality, consistent parts with excellent surface finish and color flexibility.

Details Specifications
Tolerance Replicated casts follow ISO-2768-CL standards. Local tolerances reach ±0.15 mm, with small holes achieving up to ±0.10 mm precision.
Color and Finishing Supports a wide range of colors, transparency levels, and surface finishes.
Maximum Part Size Up to 2.3 × 1.3 × 0.6 meters.
Daily Capacity Up to 200 pieces per day.
Lead Time Depends on part complexity and order volume. Simple single parts can ship in under 5 days; larger batches require more time due to prototype making, silicone mold creation, casting, and finishing.

Surface Finishes For Silicone Vacuum Casting

The surface finishing techniques that are commonly applied to silicone casted parts are:

Polishing
01 as machined cnc

Polishing removes imperfections and burrs from the surface, providing a smooth, glossy finish on the molded parts.

Bead Blasting
06 bead blasted cnc

Bead blasting creates a consistent matte surface finish that helps mask any mold lines or imperfections on quick-turn parts.

UV Coating
07 powder coated cnc

UV coating provides a clear protective finish to silicone cast parts, improving resistance to wear and UV light degradation.

Painting
05 brushed cnc

 Painting is used for silicone cast parts that require color application, allowing for a consistent finish across large production runs.

Laser Engraving
polishing

Laser engraving adds intricate details, markings, or logos to the silicone surface, ensuring precision and durability.

Electroplating
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Electroplating applies a thin metal coating, enhancing the part’s appearance, wear resistance, and corrosion protection.

Materials for Vacuum Casting

Engineers and leading manufacturers trust TUOWEI  for fast iterations and durable, high-performance parts. Whether for prototyping or full-scale production, our extensive material selection ensures precision, strength, and reliability for any CNC machining project.

Rigid

Flexible

Rubber-like

High-Temperature Resistant

High-impact

Durable

Machinable

Lightweight

Chemical-resistant

Tough

Soft

Flexible

Elastomeric

Optical-grade

High Clarity

UV-resistant

Advantages

Advantages of Vacuum Casting

Vacuum casting provides manufacturers with an affordable and flexible solution for producing high-quality prototypes and small production runs.

Applications

Applications of Vacuum Casting

Vacuum casting is widely applied across industries to deliver high-quality prototypes, functional parts, and product testing solutions.

Gallery of Excellence of Tuowei

Explore the superior design and excellence of components made in Tuowei by the state of the art CNC machines.

top rated injection mold tooling- Tuowei Precision
Metal Bending 1
High-speed 5-axis CNC machining center cutting precision molds- Tuowei Precision
Sheet Metal Fabrication 2
ISO-certified precision machining ensuring consistent quality-Tuowei Precision
Professional CNC turning services delivering tight tolerances- Tuowei Precision

Our products are of superior quality and we offer precision-engineered components in a cutting-edge CNC machine and a skilled workforce. We trust in transforming your ideas into dependable and high performance parts every time.

Choose Tuowei?

Why
/01

High Quality Parts

We ensure that at Tuowei, our quality parts are of high quality because of the close inspection and the most recent CNC machining, whereby each part will be of your specifications with excellent consistency and finish.

/02
Fast Turnaround

We have a lean process and the latest CNC equipment that enables us to produce personalized parts with faster speeds without affecting their quality and thus your project will be on time and your deadlines will never be missed.

/03
Expert Engineering Support

Take advantage of our skilled engineering staff to design to production with the best CNC machining plans, manufacturability, low costs, and performance of any project.

Let’s Build What’s Next Together

Partner with Tuowei Precision to Shape Your Vision

From rapid prototypes to scalable production, Tuowei Precision delivers reliable CNC machining with accuracy and consistency at every step. Start your project today.

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Tuowei Proto's Solutions

Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Tuowei Proto services offer the flexibility you need.

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Rapid Prototyping

CNC rapid prototype machining is perfect for creating engineering or production prototypes that closely resemble the final product in both appearance and functionality. At Tuowei, we offer instant quotes and fast delivery, providing you with precise, high-quality CNC machined prototypes for your needs.

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Low Volume Manufacturing

Low volume CNC machining often acts as a bridge between prototyping and mass production for new and emerging production. With Tuowei, this process becomes easier, more efficient, and cost-effective, allowing you to scale production quickly while maintaining high-quality standards.

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End-use Production

CNC production machining is the best solution for producing a thousand parts or more efficiently. Leveraging a diverse selection of materials and automation and multi-axis capabilities, Tuowei delivers high-volume production with tight tolerances, superior dimensional accuracy, high reliability and fast turnaround times.

Frequently Asked Questions

Vacuum Casting

  • What holds the mold together during vacuum casting?

    In vacuum casting, the silicone mold is secured in a rigid two-part frame, typically made from aluminum or durable plastic. This frame keeps the mold aligned, prevents warping under vacuum, and ensures a tight seal to avoid resin leaks. Before casting, the mold is clamped firmly inside the frame, allowing the vacuum to draw resin into every detail for clean, precise parts. 

  • How durable are the molds used in vacuum casting?

    Silicone molds generally last for 15–25 castings, depending on part complexity and the material used. They are best suited for small-batch production before wear affects precision and dimensional accuracy. 

  • How does vacuum casting compare to 3D printing?

    Vacuum casting provides superior surface finish, material strength, and consistency for low-volume production. While 3D printing is faster for single prototypes, it may fall short in mechanical performance or appearance compared to vacuum-cast parts.
     

  • How cost-effective is urethane casting for small batch production?

    Urethane casting is an economical choice for producing 20 to 200+ parts. It avoids the high expense and lead time of hard tooling, making it ideal for short runs, bridge production, or early market testing without compromising quality. 

  • How accurate are vacuum cast parts?

    Vacuum cast parts typically achieve tolerances of ±0.1–0.3 mm, depending on part size and geometry. This process delivers excellent surface finish and fine details, making it suitable for both functional prototypes and low-volume end-use parts. 

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