Aerospace

Provide efficient production and faster design to delivery.

Automotive

Produce precision parts that exceed industry standards.

Automation

Create and test products quickly to bring them to market.

Consumer Products

Bring new, affordable products to market faster.

Communication

Empower to innovate faster, maximizing performance.

Electronics

Innovation in enclosures for low-volume production.

Industrial Equipment

Deliver machinery that beats the competition.

New Energy

Speed up innovation and development.

Medical Devices

Build prototypes and products that adhere to medical safety.

Robotics

Improve efficiency with precise, fast, and constant part quality.

Semiconductor

Drive time-to-market through on-demand production.

CNC Machining for Aerospace

The extremely high level of precision needed within the aerospace industry makes CNC machining a suitable manufacturing process for the sector.

 

This article provides you with a complete guide to aerospace machining and its importance.

 

Blog

Gain valuable insights into manufacturing processes.

Knowledge Base

Whitepaper, design guide, materials, and finishing.

Case Studies

Learn successful stories to inspire your project.

eBooks

Improve manufacturing know-how with our eBooks collection.

Videos

Discover our library of educational videos.

Surface Finishes

Select from 30+ surface finishing options.

Materials

Choose from 50+ metals and plastics for your project.

CNC Machining eBook

If you want to produce high-quality machined parts with a sleek appearance, it’s essential to consider some critical factors related to CNC machining. 

 

Here, we’ve gathered some basic information and important considerations to help you achieve the desired results.

About RapidDirect

Our vision, mission, development history, and dedicated team.

Testimonials

Real feedback on experiences and opinions of our services.

News

Company news, platform updates, holiday announcement.

Our Platform

Get instant quotes with our smart online platform.

Our Capabilities

Rapid prototyping, and on-demand production.

Quality Assurance

Deliver quality parts that meet requirements and exceed expectations.

Contact Us

Online Quotation Platform v3.0

Attention! We have exciting news to share with you. We have just launched the latest online platform, version 3.0! 

 

 

The updated platform boasts a fresh and intuitive design, along with enhanced functionality that streamlines and accelerates the quoting process, like a new manufacturing process, streamlined quoting summary page, and improved checkout page. 

Vacuum Casting Service

Reliable vacuum casting service for prototypes and low-volume production parts at competitive pricing. Highly detailed elastomer parts with excellent quality and faster turnarounds.

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Vacuum Casting for Flexible and Economic Production

vacuum casting services

Vacuum casting or urethane casting is a technology that combines silicone molds and a 3D printed master pattern to create short-run, rigid parts with production-level quality. The process hardens thermoplastic polyurethane inside silicon or epoxy molds. The result is vacuum casting parts with the same shapes as the original master models. The final dimensions of the vacuum casting parts will depend on the master model, part geometry, and the material chosen.


As a leading vacuum casting manufacturer, RapidDirect offers low-cost fabrication of high-quality plastic parts. This technology eliminates the need for expensive upfront investments. Our vacuum casting services offer the complete solution for creating excellent quality prototypes and low-volume production parts.

Why Vacuum Casting

1Fast lead time

Unmatched Lead Time

We combine our extensive technical experiences and advanced technologies to deliver superior urethane casting services with faster lead times.

1Complex Structure 1

Complex Geometries Support

We use high-quality elastomeric materials to ensure the manufacture of vacuum casting plastic parts with complex structures. Offer detailed design support to ensure your prototypes and small-batch components are closely similar to the intended final products.

1Flexible Color Option 2

Flexible Color Options

We carefully incorporate various color pigments to achieve the intended effects on your finished products. You can select from our extensive list of color options.

1Surface Detail 1

Material and Finishing Selection

Choose from a wide range of possible materials and surface finishes for your vacuum cast parts. We provide the highest quality resins to ensure superior product quality, and offer a wide range of surface finishing options to bring your product to life.

1Quality Control 1

Consistent Quality

RapidDirect is proudly ISO certified, ensuring our products and services comply with international quality standards. We offer manufacturing analysis and quality control to provide parts that meet the highest standards.

1Molding

Professional Vacuum Casting Specialists

Get reliable custom vacuum casting services from highly skilled and experienced specialists. We boast the best hands in the industry with expertise in fabrication, material selection, surface finishing, and many more.

Quote Within One Day, Operate at Your Fingertips

Along with our exceptional vacuum casting service, RapidDirect also offers an effective means of managing your orders with only a few clicks.

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Bulk Pricing

No need to request multiple quotes for different quantities of the same part. We provide you with a comprehensive quote with different prices you can use to compare and make the proper order based on your budget.

Real-time Order Tracking

Monitor your order’s delivery status in real time and with relative ease, thanks to our order tracking features. This guarantees that your vacuum casting products will arrive on time.

All-in-one order Management​

Have all your vacuum casting parts quotes and orders on one page. Aside from regular updates for existing orders, making future orders is never easier.

Vacuum Casting from Prototyping to Production

Vacuum casting is the ideal solution for creating high-quality prototypes and small-batch parts for different applications. We help you reach your manufacturing goals.

 
1injection molding

Prototyping

The vacuum casting process involves low-cost tooling to ensure a more accessible and cost-effective way of creating prototypes. Create quality prototypes with various materials and design changes. Test your designs easily and get them ready for functional testing.

 
1Flexible Color Option 3

Market Testing

We help you create vacuum casting products ideal for market and consumer testing, concept models, and user evaluation. These parts come with high-quality finishes and end-use functionalities. Our urethane casting services allow you to incorporate changes quickly for further testing and market launch.

 
1bridge production

On-Demand Production

Vacuum cast parts are excellent options for custom and first-run production. You can cost-effectively test product quality before starting full-scale production.

 

Let's Start A New Project Today

Vacuum Casting Tolerances

RapidDirect offers a range of vacuum casting tolerances to meet your custom requirements. Based on the master pattern and part geometry, we can reach dimensional tolerances between 0.2 – 0.4 m. Below are the technical specifications for our vacuum casting services.

Type Information
Accuracy

Highest precision to reach ±0.05 mm

Max Part Size

+/- 0.025 mm

+/- 0.001 inch

Minimum wall thickness

1.5mm~2.5mm

Quantities

20-25 copies per mold

Color & Finishing

Color and texture can be customized

Typical Lead Time

Up to 20 parts in 15 days or less

Vacuum Casting Materials

You can choose a wide range of vacuum casting materials depending on the peculiarities of your project. These resins are typically analogs of common plastic materials with comparable performance and appearance. We have grouped our urethane casting materials into general categories to help you make the best decisions for your project.

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  • ABS-Like
  • Acrylic-Like
  • Polypropylene-Like
  • Polycarbonate-Like
  • PMMA
  • PS
  • Elastomer
Vacuum casting ABS parts

ABS-Like

Versatile polyurethane plastic resin that is analogous to ABS thermoplastic. Hard, rigid, and impact resistant, it is ideal for various products.

Price: $$

Colors: All colors; precise pantone color matching available

Hardness: Shore D 78-82

Applications: General purpose items, enclosures

Vacuum casting parts

Acrylic-Like

Stiff, transparent urethane resin simulating acrylic. It is hard, with medium to high strength and good clarity for see-through products.

Price: $$

Colors: Clear

Hardness: Shore D 87

Applications: Light pipes, see-through components

Polypropylene Like

Polypropylene-Like

Tough, flexible, and abrasion-resistant urethane with low cost and polypropylene-like ductility.

Price: $$

Colors: Black or natural only

Hardness: Shore D 65-75

Applications: Enclosures, food containers, medical applications, toys

Polycarbonate like

Polycarbonate-Like

Rigid, high-impact, and clear material with a wide variety of uses. Easy to machine and finish, simulating polycarbonate.

Price: $$

Colors: Clear and various colors

Hardness: Shore D 82-86

Applications: Light diffusers, signs, skylights, visors

PMMA

PMMA

UV stable, high-quality urethane resin with good clarity. Great for glossy, clear parts as a classic substitute for acrylic-like.

Price: $$

Colors: RAL/Pantone colors

Hardness: Shore D 90-99

Applications: Lighting, signal display, partition material

ps material 1

PS

High impact strength, low-cost resin with a wide range of options.

Price: $$

Colors: Pantone colors

Hardness: Shore D 85-90

Applications: Displays, disposable items, packaging

Vacuum casting Waterclear Elastomer

Elastomer

Polyurethane plastic resin, simulating rubber-like materials like TPU, TPE and silicone rubber.

Price: $$

Colors: All colors and precise Pantone color matchings

Hardness: Shore A 20 to 90

Applications: Wearables, overmolds, gaskets

Note: You can learn more from our eBook on plastic materials

Surface Finish for Vacuum Casted Parts

With an extensive array of surface finishes, RapidDirect can create unique surface layers for your vacuum casting parts. These finishes help you meet your products’ appearance, hardness, and chemical resistance requirements. Depending on your material selection and part applications, we can offer the following surface finishes:

Available Finishing Description SPI Standard Link
group a glossy 1
High Gloss Highly reflective surface finish created by polishing the master pattern before mold making. The high-gloss finish offers high transparency useful for cosmetic parts, lenses, and other cleanable surfaces. A1, A2, A3 Learn More>>
group b semi gloss 1
Semi Gloss This B grade finish is not highly reflective but offers some sheen. Using gritty sandpaper, you will get smooth, cleanable surfaces between high-gloss and matte.

B1, B2, B3

Learn More>>
group c matte finish 1
Matte Finish Vacuum cast parts will have a satin-like finish through the bead or sand blasting of the master pattern. The C-grade finishes are ideal for high-touch areas and handheld components. C1, C2, C3
group d textured
Custom RapidDirect can also provide custom finishes through additional processes. On request, you can get unique secondary finishes for the best results.

D1, D2, D3

Gallery of Vacuum Casting Parts

We have been helping various industries such as aerospace, automotive, medical devices and other industries to develop various elastomeric vacuum cast parts since 2009.

See What Our Customers Say About Us

A customer’s words have a more substantial impact than a company’s claims – and see what our satisfied customers have said regarding how we fulfilled their requirements.

Our Vacuum Casting Service for Various Industrial Applications

Due to its fast production, low costs, and durable parts, our vacuum casting service is the favored option for making custom parts used in the automotive, medical, consumer goods, and other industries.

Automotive

Aerospace

Consumer Goods

Medical Devices

Robotics

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