Capabilities
Vacuum Casting
Vacuum Casting Services | Ideal for Small-Batch Production and Prototyping
You can obtain 10 to 500 high-quality, fully functional components without incurring expensive mold costs. With our fast delivery service, we help you accelerate the entire process—from prototype validation to market launch.
Professional vacuum casting (polyurethane casting) services
Vacuum casting—also known as polyurethane casting or silicone molding—is an advanced manufacturing technique ideal for producing small-batch, high-performance plastic components. The process begins with a precision master mold (typically created via CNC machining or 3D printing), which is used to craft a silicone mold. Polyurethane resin is then carefully poured into the mold under vacuum conditions, accurately replicating the part’s intricate details, textures, and outstanding mechanical properties. For small-batch production runs of 50 to 500 units, this method offers the most cost-effective and efficient solution, making it particularly well-suited for market testing, design validation, or limited-edition product launches.
2. Our Core Strengths (Why Choose Us?)
- Affordable: Eliminate the costly expense of steel molds—often reaching tens of thousands of dollars—and significantly reduce your investment in pilot production.
- Extreme speed: You can receive the first batch of samples in as little as 3 to 5 days—far faster than the several weeks typically required for traditional injection-mold tooling.
- Material Diversity: More than 100 engineering-grade polyurethane resins are available, capable of replicating the properties of ABS, PP, PC, nylon, and even rubber.
- High quality: Vacuum technology effectively eliminates bubbles, ensuring high replication accuracy and enabling surface finish to meet the SPI A2 standard.
- One-stop solution: We can provide end-to-end services—from master mold machining and casting to post-processing (such as painting and silk-screen printing)—based on your 3D files or prototypes, along with assembly.
3. Technical Specifications:
- Typical applications: Functional prototypes, design validation, market testing, small-batch production, and demonstration models.
- Mold life: Each silicone mold can produce 15 to 25 castings.
- Number of cast parts per piece: 1 to 20 pieces per mold (the exact quantity depends on the part size and layout).
- Standard Tolerance: ±0.2 mm/100 mm.
- Maximum part size: 2000 mm × 2000 mm × 1000 mm (unit).
- Commonly used materials: Similar to ABS, similar to PP, transparent PC prototypes, high-temperature-resistant nylon prototypes, and soft rubber (Shore A 30–90).
4. Vacuum Casting Process:
- 3D data received: You provide the 3D model of the part (STP/IGS format).
- Primary mode creation: We use CNC machining or high-resolution 3D printing technology to create highly precise master molds.
- Silicone Mold Making: Place the mold into the mold box, then pour the liquid silicone into it and allow it to cure, thereby creating a flexible mold.
- Vacuum Casting: The silicone mold is placed into a vacuum chamber, and then degassed polyurethane resin is injected.
- Curing and Demolding: After being cured in the oven, the silicone mold is carefully cut open to remove the polyurethane component.
- Post-processing and Quality Control: Parts are trimmed, sanded, painted, or surface-treated as needed, and then undergo rigorous quality inspections.
- Delivery: High-quality components have been packaged and sent to you.
5. Service Industry:
Automobiles, consumer electronics, medical devices, home appliances, drones, robots, cultural and creative products, and more.
Do you have the brand-new product ready for pilot production?
Upload your 3D file now, and our engineering team will provide you with a professional DFM analysis and a highly competitive quote within one hour.
[Upload your file now to get an instant quote]
 |
 |
 |
 |
Products
Shenzhen GH Prototype Technology Co., Ltd
Building B, Baoda Industrial Zone, Ma'anshan, Nanhuan Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China
Copyright © 2025 Shenzhen GH Prototype Technology Co., Ltd
Business license
Privacy Policy | SEO | CitySite Support: 300.cn Dongguan