Service 2.4 · Rapid Prototype & Production
Vacuum Casting
We deliver rapid silicone casting products to mitigate risks in product development. This accelerates your product launch and helps you seize early commercial opportunities in the market.
Vacuum casting delivers high-fidelity silicone-molded plastic and elastomer components for low-volume bridge production. We manage the full workflow: master pattern fabrication, silicone mold design & manufacturing, resin material selection, DFM review, mold trial, post processing, dimensional & appearance inspection.
Capacity
- Efficiency — 20 to 25 pcs per tool with production-grade quality.
- Material — engineering-grade plastics (ABS, nylon, PC, POM), acrylics and elastomers such as soft rubber and silicone.
- Scale — capable of producing large components up to 2.2 metres in size.
Vacuum Casting Process Steps
- 01|HIGH-PRECISION MASTER PATTERN|Master patterns by high-precision 3D printing (cleaning, curing, support removal & fine sanding to remove layer lines). For applications requiring superior dimensional accuracy, CNC machining is used to create the master pattern instead.
02|MOLD FRAME ASSEMBLY & PARTING DESIGN|Mount master pattern in custom mold frame; design parting line, gates and vents. Optimize parting strategy for complex geometry and undercuts.
03|SILICONE MIXING, VACUUM DEGASSING & MOLD POURING|Blend silicone and hardener, vacuum degas, pour into mold frame, then re-degas under vacuum to avoid bubbles inside silicone mold.
04|THERMOSTATIC CURING & MASTER EXTRACTION|Cure silicone in temperature-controlled oven. Cut mold along parting line, take out master pattern and clean mold cavity.
05|VACUUM CASTING FOR BATCH PRODUCTION|Mix PU resin, vacuum degas, inject slowly into silicone cavity under vacuum to prevent voids, then static curing.
06|DEMOLDING, POST-PROCESSING & QC|Remove gates and burrs after demolding. Carry out sanding, polishing, painting as required. Complete dimension check, visual screening and performance sampling before shipment.
Workflow
Workflow for Vacuum Casting
Reference
https://jiometry-x.com/uploads/2026/09/13dbb24ba564f876.png
https://jiometry-x.com/uploads/2026/09/60dbc1f3eb47d909.png
https://jiometry-x.com/uploads/2026/09/483a8883eb1ca15d.png
Advantages of Vacuum Casting
- Low tooling cost|Silicone molds cost a fraction of steel injection tooling.
Fast turnaround|Silicone mold fabrication and part casting can be completed in just a few days.
Versatile material options|Simulate engineering plastics, soft elastomers and transparent resins.
Suitable for bridge production|Ideal for pre-launch validation, market testing and low batches up to 10–25 pcs per mold.
Wide size capability|At Jiometry-X, manufacture large components up to 2.2 m.
Flexible post-processing|Supports painting, plating, laser etching, polishing for cosmetic finishes.
Need 20 to 25 sets before tooling?
Vacuum casting gets you market-ready parts without heavy investment in steel injection molds. Submit your requirements:
- CAD models, 2D drawings, physical samples or sketches
Batch quantity
project timeline