Vacuum Casting: High-Precision and Cost-Effective Low-Volume Manufacturing Process

1. What is Vacuum Casting

2. Working Principle of Vacuum Casting

• Prototype Making: Manufacture master prototypes via CNC machining or 3D printing.
• Silicone Mold Fabrication: Immerse the prototype in liquid silicone. Once fully cured, split the mold and take out the prototype to form a hollow cavity for casting.
• Vacuum Infusion: Pour materials like polyurethane and epoxy resin into the mold in vacuum to fill every fine detail and eliminate air bubbles.
• Curing & Demolding: Harden the cast parts under heating, then take them out and conduct post-processing such as deburring and surface spraying.

3. Advantages of Vacuum Casting

• High Precision & Fine Surface Finish: Dimensional tolerance reaches ±0.1mm with smooth surface appearance.
• Fast Delivery: Production can be finished within 7 to 10 days, much faster than injection molding, ideal for product development and market trial.
• Wide Material Selection: Transparent, high-temperature resistant, high-strength, soft and elastic materials are available to meet varied usage requirements.
• Cost Efficiency: Silicone molds are low-cost and reusable for 20 to 30 times, more economical than conventional molds.

4. Application Fields

• Automotive: Instrument panels, interior trims and other functional components.
• Medical Devices: Equipment housings and laboratory instrument parts.
• Consumer Electronics: High-precision products such as phone casings and electronic prototypes.
• Industrial Products: Mechanical parts, low-batch assemblies and structural verification models.

Choose BRICS for Vacuum Casting Services