Vacuum Casting Rapid Prototype For Aerospace , Automotive Casting
Parts
Vacuum Casting :
Vacuum casting, also known as urethane casting or polyurethane
casting, is a cost-effective method for producing high-quality
parts using soft silicone molds instead of traditional metal
injection molds. It's ideal for small production runs and
early-stage product development. Learn about the process,
materials, and its advantages and limitations in this brief guide.
1.Rapid prototyping
and full-scale production
2.Used in over
30 countries
3.ISO 9001 accredited
& QC checks
4.FREE Instant
quotations
The advantages of Urethane Casting:
- Suitable for Small Production Runs
- Achieves Consistent Self-Colored Parts
- Minimal InitiaInvestment Required
- Delivers Production-Quality Components
- Wide Array of Material Options
- Enables Creation of Rubber-Like Parts and Over molds
Urethane Casting Tolerance Guidelines:
| Part size / dimension | Tolerance | Angularity |
| < 11’’ (300 mm) | ± .005’’ (0.125 mm) | ± 0.5° |
| < 24’’ (600 mm) | ± .010’’ (0.250 mm) | ± 1.0° |
| < 36’’ (900 mm) | ± 1/16’’ (0.400 mm) | ± 1.0° |
Size limitations for Urethane Casting:
Requirement
|
Specifications
|
Maximum part dimensions
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1900 x 800 x 950 mm
|
Minimum wall thickness
|
0.65 mm (recommended wall thickness 1.5 mm)
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Duplication quantities
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10-20 copies (depend complexity of the mold and casting materials)
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Vacuum Casting Process
Creating polyurethane vacuum cast parts involves three main steps:
master pattern creation,
mold fabrication, and part casting.

1. Master Pattern Creation:
Crafting patterns from your CAD designs is the initial step. These
3D solids are made through CNC machining or 3D plastic printing
like SLA/SLS. You can provide patterns or let us create them.
Patterns should endure up to 50°C heat.
2. Mold Fabrication:
Liquid silicone forms the casting molds. It's poured around the
master pattern within a casting box, cured in an oven for 15 hours.
Afterward, the mold is opened, and the master pattern is removed,
yielding a negative cavity mirroring the original. Our silicone molds typically yield around 25 copies of the master
pattern.
How does vacuum casting work?
The process involves 3 main stages:
- Building a master model
- Creating the silicone tool and
- Producing the parts
Building a master model:
To achieve precise results in vacuum casting, start with a
top-notch master model. Crafted via 3D printing or CNC machining,
it's meticulously refined for ideal surface texture and detail
replication.
|  |
Creating the silicone mould tool:
Create precise silicone molds by encasing the master model in a
casting box filled with liquid silicone. Maintain a 40°C
temperature for 8-16 hours until the silicone sets. Once cured, cut
open the mold to reveal a perfect fit for your master model. |  |
Producing the parts:
Fill the hollow mold with polyurethane (PU) resin through a funnel
to ensure even distribution and prevent air bubbles. Seal the mold
and let it cure at 70°C in a casting machine. After cooling, remove
the shaped material, and perform any required post-processing.
Typically, this process can be repeated 10-20 times before the
mold's shape starts to deteriorate, affecting accuracy.
|

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Our Vacuum Casting Services
Experience high-quality production parts with Vacuum Casting, also
known as Urethane or Polyurethane casting. At JYH, we offer a vast
selection of plastic materials and can cast parts ranging from
small headphones to large 2-meter car bumpers. Skip the lengthy
lead times and tooling costs – choose Vacuum Casting for efficient
solutions.
Our Capabilities
|
Description |
Maximum build size
|
1.9 x 1.6 x 1.5 m |
Typical mould life |
15 – 25 parts
|
Materials
|
Wide range of thermoplastics, rubbers, transparent resins, etc.
|
Lead time
|
From as fast as 5 days |
Why Choose JYH- precision for Urethane Casting Parts Services?
In the realm of vacuum casting, a multitude of manufacturers are
available for selection. Opting for the correct one holds
paramount importance to achieve your anticipated outcomes. Consider
the following factors that make JYH precision machining an ideal
choice for your vacuum casting requirements.
- Outstanding Quality and Rapid Performance
At JYH Precision, we believe that quality and speed should go hand
in hand. Our approach combines extensive industry expertise with
cutting-edge tools and technologies, enabling us to provide
top-notch vacuum casting services within tight timelines (usually 5
to 7 days). | - Enhancing Your Product with Finishing Services
Vacuum casting is just a part of our capabilities. we provide an
array of supplementary finishing services that contribute to
bringing your product to its full potential. These services
encompass machining, media blasting, printing, painting, and
beyond. |
- Smart Quotes Tailored to Your Every Project
We recognize that your requirements are distinct, and unnecessary
expenses are undesirable. Hence, we refrain from imposing minimum
order volumes or dollar values for our vacuum casting services. we
ensure swift and precise quotes within 1 hours or less for almost
all projects. | - Supporting Design for Manufacturing and Remote Flexibility
Vacuum casting is frequently utilized for prototyping, we
understand that many of the products . To facilitate their
refinement, we extend comprehensive design for manufacturing
assistance to our clients.
|
Vacuum Casting Materials
Acrylic-Like |
Acrylic-Like is a rigid and uncomplicated polyurethane plastic
designed to mimic acrylic (PMMA). It's used to craft components
that need some level of translucency, such as light panels, safety
screens, and automotive taillights.
|
ABS-Like |
ABS-Like is a versatile polyurethane plastic that imitates ABS
thermoplastic. Widely used, it's a reliable option suitable for
various parts.
|
Opaque Elastomer |
Opaque Elastomer is a polyurethane plastic designed to replicate
diverse rubber-like substances such as TPE, TPU, and silicone
rubber.
|
Soft-rubber-like Opt for vacuum casting when crafting resilient rubber components
and prototypes. Our soft, rubber-like materials are perfect for a
wide range of applications, offering both flexibility and
durability, ideal for industrial components and consumer products.
Appearance: Colorless Transparent, Yellow Transparent
Material Reference: T0387,8400
|  |
PA-like Discover the exceptional qualities of PX223, a high-performance
material akin to PA, specifically designed for silicone molds.
Utilize PX223 to craft robust and versatile components, mirroring
the resilience and versatility of nylon parts.
Appearance: Black, Tawny
Material Reference: PX223
|  |
ABS-like Utilize vacuum casting to craft robust components that mimic ABS
plastic, offering excellent impact resistance and superb
insulation. Ideal for manufacturing electronic enclosures,
automotive components, and various other applications.
Appearance: Beige, Black, Milky white
Material Reference: Hei-Cast 8150, PZ858, 6160, P+600
|  |
PP-like UP 5690 offers mechanical characteristics akin to genuine PP and
HDPE materials. It boasts effortless processing, exceptional impact
resilience, impressive flexibility, and finds applications in
bumpers, equipment enclosures, protective covers, and
anti-vibration tools. Discover its versatility today.
Material Reference: UP 5690
Appearance: White, Black
|  |
PMMA-like Urethane casting, especially with PX-5210, is an excellent option
for crafting transparent components. While not on par with genuine
PMMA, PX-5210 boasts impressive clarity, easy polishability,
resistance to yellowing, and strong UV resistance. It's a versatile
choice for various applications requiring clear parts.
Material Reference: PX 5210
Appearance: Transparent
|  |
PC-like Utilize PX520 in silicone molds to craft prototype components and
mock-ups that closely mimic genuine PC material's mechanical
characteristics.
Material Reference: PX520
Appearance: White, Clear
|  |
Frequently Asked Questions
- Why would you choose vacuum casting over 3D Printing?
- Choosing vacuum casting over 3D printing hinges primarily on
material quality and performance. Vacuum casting offers superior
materials that closely replicate those found in commercial
products. If material performance and product aesthetics are
paramount, opt for vacuum casting.
- What industries are using vacuum casting?
- As vacuum casting can be used for low volume production as well as
mass production, it is applied by various industries such as
consumer products, food and beverage, electronics, and etc.
- Can I make production-quality parts using vacuum casting?
- Vacuum casting is best for making visually impressive prototypes,
but it can also be used for non-mechanical end-use parts.
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Vacuum Casting Rapid Prototype For Aerospace , Automotive Casting
Parts,JYH is your best injection mold supplier!
Injection Moulding is highly repeatab.