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| Categories | Vacuum Casting |
|---|---|
| Part Type: | Plastic Enclosure Prototype |
| Brand Name: | YS Precision |
| Process: | Vacuum Casting / Urethane Casting |
| Model Number: | Vacuum Casting |
| Application: | Consumer / Household Product |
| Certification: | ISO9001 |
| Purpose: | Design, Assembly & Appearance Evaluation |
| Destination: | Italy |
| Size: | Approx. 300 × 50 mm |
| Finish: | Surface Smoothing + Matte Black Painting |
| Material: | ABS-Like Polyurethane Resin |
| Place of Origin: | China |
| Company Info. |
| YS COMPANY LIMITED |
| Verified Supplier |
| View Contact Details |
| Product List |
For consumer and household product development, a prototype
enclosure often needs to verify more than basic dimensions. R&D
teams may also need to evaluate fit, assembly, exterior details, surface quality, and the final
product appearance before approving the design for tooling.
For this project, YS Precision manufactured 20 sets of plastic enclosure prototypes for a customer in Italy.
The housing measured approximately 300 × 50 mm and included features on all four sides. The design combines a
large curved lower profile with ventilation slots, recessed areas,
grooves, openings, and other exterior details.
Producing the complete batch by CNC machining would require
repeated setups and machining from multiple directions. After
reviewing the geometry, quantity, material, and appearance
requirements, we selected vacuum casting using an ABS-like polyurethane resin.
The cast parts were then carefully smoothed and finished with matte black paint to achieve the required cosmetic appearance.
| Requirement | Project Details |
| Application | Consumer / Household Product |
| Part Type | Plastic Enclosure Prototype |
| Size | Approx. 300 × 50 mm |
| Quantity | 20 Sets |
| Material | ABS-Like Polyurethane Resin |
| Process | Vacuum Casting / Urethane Casting |
| Finish | Surface Smoothing + Matte Black Painting |
| Purpose | Design, Assembly & Appearance Evaluation |
| Destination | Italy |
This enclosure may look relatively simple from a distance, but its multi-sided features significantly affect the manufacturing process.
The upper surface contains several recessed details. Ventilation
slots and small openings are located along the exterior faces,
while the lower section has a large curved profile. Other local
features are distributed around the housing.
If produced by CNC machining, the part would need to be
repositioned so that tools could access features from different
directions.
For one or two prototypes, this may still be a reasonable solution.
For 20 sets, however, the same setups, machining operations, and
material preparation would need to be repeated for every enclosure.
This is an important consideration when sourcing low-volume plastic prototype parts: the most suitable process depends not only on quantity, but also
on how difficult the geometry is to manufacture repeatedly.
The customer needed multiple enclosures for product evaluation, but
the design had not yet reached the point where production injection
tooling was necessary.
Vacuum casting offered a practical intermediate manufacturing
route.
An accurate master prototype was prepared first and carefully
finished. Silicone tooling was then created from the master,
allowing the required enclosure parts to be reproduced in ABS-like polyurethane resin.
For this project, vacuum casting provided several practical
benefits:
The objective was not simply to choose the lowest-cost process. We
needed a solution that balanced prototype quality, total project cost, quantity, surface
requirements, and development stage.
For this project, we used an ABS-like polyurethane resin, a material commonly used in vacuum casting when prototypes
require properties similar to rigid engineering plastics.
It provides a useful combination of rigidity, toughness, and
surface quality for many consumer product prototype applications,
including:
For R&D teams, ABS-like polyurethane parts can be useful for fit checking, assembly trials, design verification, handling
evaluation, and appearance review.
It is important to note that ABS-like polyurethane resin is not the
same material as injection-molded ABS.
If the validation program requires the exact mechanical, thermal,
chemical, or long-term properties of production ABS, another
prototype process may be more appropriate.
Material selection should therefore follow the purpose of the prototype, not simply its appearance.
Surface finish was a key requirement because this component is an
exterior enclosure.
After vacuum casting, the parts were trimmed and carefully smoothed
before painting. Surface preparation is particularly important for
matte finishes because scratches, parting-line marks, or local
imperfections can remain visible after coating.
The customer specified a matte black painted finish, giving the prototype enclosure a clean and more production-like
appearance.
For consumer product development, this can be valuable during:
A prototype housing therefore needs to be evaluated from both an engineering and cosmetic perspective.
Both CNC machining and vacuum casting are widely used for plastic prototype manufacturing, but the right choice depends on the project.
CNC machining may be preferable when only a few parts are required, tighter
machined tolerances are needed, or the prototype must be
manufactured from the actual engineering plastic.
Vacuum casting can be more cost-effective when multiple similar plastic housings
are required and the design contains features that would require
repeated multi-direction CNC machining.
For this enclosure, the combination of 20 sets, four-sided features, ABS-like material, and cosmetic
finishing requirements made vacuum casting a suitable choice.
When the design becomes stable and quantities increase, prototype
or low-volume injection molding can then be evaluated for the next
stage.
For overseas engineering and purchasing teams, managing several
suppliers for one prototype build can add unnecessary communication
and quality risk.
YS Precision coordinated this project from prototype manufacturing and silicone tooling through vacuum
casting, surface preparation, matte black painting, inspection,
packaging, and shipment to Italy.
This allows customers to source both the plastic prototype parts
and their cosmetic finishing through one project team.
YS Precision provides custom plastic prototype manufacturing for consumer products, household appliances, electronic devices,
medical equipment, and industrial products.
Depending on the part design and project stage, we can support:
Our engineering team reviews the CAD geometry, quantity, material, critical dimensions, surface
finish, intended test, and delivery requirements before recommending a manufacturing process.
If you are developing a custom plastic enclosure, housing, or consumer product prototype, send us your project requirements for review.
For an accurate quotation, please provide:
3D CAD files + 2D drawings + quantity + material + color/finish +
critical tolerances + intended prototype use.
YS Precision can evaluate whether CNC machining, vacuum casting, or prototype injection molding is the more suitable solution for your project.
Send your plastic enclosure design for engineering review and
quotation.
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