Vacuum Casting Services

- Suitable for scaling from 1-10000 parts
- Production Quality at Low Volumes
- DFM feedback and analysis

High Quality Prototypes and Production Parts

Vacuum casting also known as Urethane casting. Vacuum casting has a low-cost and quick turnaround for high-quality plastic parts compared to injection molding or 3D printing. Where injection molding requires expensive upfront investment for the machining of the mold, the silicone mold required for Vacuum casting is inexpensive and easy to produce. has a distributed network of Vacuum casting partners with a high-tech machines, promising speedy delivery on every order. Advantage

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    Affordable Prices

    Our vetted network of 3D Printing and Vacuum Casting partners ensure cost-effectiveness as silicone molds are less expensive than injection tooling.

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    Instant Quotes & Manufacturability Feedback

    Streamline your workflow with our digital quote-to-order platform. Simply upload your CAD model for instant pricing and DfM feedback.

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    Fastest Turnaround, High Quality has a distributed network of Vacuum casting partners with a high-tech machines, promising speedy delivery on every order.

Vacuum Casting Process

Vacuum casting process uses a 3D printed SLA master pattern and Silicone molds to produce high-quality, short-run parts without expensive and time-consuming hard tooling. Karkhana.Io offers a wide range of vacuum casting services using a variety of materials. We just require the .STEP file of your parts in order to provide DFM and speedy quote.

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Vacuum Casting Capabilities

Materials ABS, PC, PP, Nylon, ABS/PC
Bed Sizes 750 x 900 x 750 mm 1000 x 600 x 300 mm
Minimum Dimensional Requirement 0.80m
Tolerance ±0.2 - ±0.25mm
Lead Time 12-15 days
Mold Life 20 - 25 shots

Master Pattern

Masters are 3D printed models of your CAD design. Usually SLA technology is used to produce parts of ABS material. Once verified and approved, the next step is making the mold.


Mold Making

Once the master is placed, liquid silicone is poured and cured at a suitable temperature. Once dried, the mold is cut open, the master is removed and ready for vacuum casting.


Part Making

Casting resin is poured in the empty cavity, in order to produce parts with high accuracy and finish.

Vacuum Casting Materials


ABS-Like is a general purpose polyurethane plastic that simulates ABS thermoplastic. This material is a great choice for most product enclosures.

Colour: Any Pantone or RAL code
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Inserts, Taps and Pad printing


Polypropylene polymers bear excellent physical properties and doesn't melt below 160 Degree Celsius. Polypropylene (PP) is a rigid and crystalline thermoplastic used widely in everyday objects like packaging trays, household products, battery cases, medical devices.

Colour: Any Pantone or RAL code
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Inserts, Taps and Pad printing


Nylon is more impact resistant and heat resistant than traditional casting materials and rapid prototyping materials. Nylon is also durable for living hinges.

Colour: Any Pantone or RAL code
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Inserts, Taps and Pad printing


ABS/PC combines the strength and heat resistance of PC and the flexibility of ABS. This blend is 5-60% stronger than standard ABS.

Colour: Any Pantone or RAL code
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Inserts, Taps and Pad printing

Polycarbonate (PC)

Polycarbonate (PC) plastics are a naturally transparent amorphous thermoplastic. PC is a strong material and known for maintaining temperature resistance.

Colour: Any Pantone or RAL code
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Inserts, Taps and Pad printing

Manufacturing is easy with

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Fair Pricing

Get in-depth insights to improve your design for manufacturing. Choose the right material and get fair pricing for fabrication.

Build Fast. Learn Fast.

Building things is hard, it doesn't need to be slow. We speed up the process using our curated prototyping resource pool.

Quality Assurance

If a part is not made to spec, we'll make it right. From factory audits to part inspections, we follow strict processes to meet the highest quality standards.

Massive Manufacturing Capacity

From your desktop, instantly access the production capacity of over 150+ manufacturers with wide-ranging capabilities and certifications across India.

Manufacturing partners
1 .8 m +
Parts & prototypes produced
Customers served

Our Customers Love Us

Trusted by engineers and purchasing leaders at the world’s most successful companies. Over 1 million parts delivered

What is Vacuum Casting

Vacuum casting provides end-use, rigid, flexible, and rubber parts with production-level quality. The vacuum casting process uses a 3D-printed master pattern to create a silicone mold that delivers high-quality, short-run parts as an economical alternative to low-volume injection molding. With urethane casting, you can get production quality parts at low volumes and without the high costs and lead times of steel or aluminum tooling. This is helpful for bringing new products to market where you may want production-grade products to test with new customers and markets and validate your design hypotheses before making a substantial investment to scale manufacturing.

Applications of Vacuum Casting

Build Concept Models and Prototyping Easily

Cast urethane is often used as a bridge between SLA prototyping and mass production. Cost-effective and versatile, the process can be used to manufacture parts in a variety of sizes, durometers, materials, and colors, while still providing production-level material performance.
The ability to rapidly generate multiple prototypes means that changes can be incorporated and retested quickly, making urethane casting an ideal method for consumer testing or end-user evaluation of parts.

Low volume production

Vacuum casting is a consistent, flexible, and precise manufacturing process factors that are ideal for low-volume runs of production-grade parts. With the development of cast urethane soft tooling , low-volume production has become increasingly cost-effective and efficient for a wide range of consumer products and medical devices.

Bridge Tooling

Also called rapid tooling, bridge tooling is the process between product development and production. Since the process of retooling molds is expensive and sometimes impossible, it's important to make sure a tool works correctly before moving into volume production. The flexibility of cast urethane allows the simple evolution of prototypes in response to user testing, while also ensuring that each part remains accurate in accordance with the master pattern even down to detailed internal features.

Frequently Asked Questions

What types of parts can you make?
Do you offer advanced inspections and material certificates?
What kind of finishing services do you provide?

Other Manufacturing Services

CNC Machining

Milling (3-, 4- & full 5-axis), turning & post-processing

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Sheet Metal Fabrication

Laser cutting, CNC bending, Welding and Assembly

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3D Printing

Quick Prototyping in hard plastics, elastomers and metals.

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Injection Molding

Production grade parts from hundreds to millions of units.

Learn more

Start Vacuum Casting Production Today.

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