Polyurethane Vacuum Casting
Custom Fabrication Services
Vacuum Casting is a manufacturing process that involves creating parts from silicone molds using a vacuum to help draw the resin into the mold, ensuring a high level of detail and minimal air bubbles.
Vacuum casting is commonly used for small-batch production of prototypes and parts
Production time for small batches: 7-12 days
Low-Volume Plastic Parts & Prototyping
Polyurethane Vacuum Casting is a cost-e ective alternative to low-volume injection molding for plastic parts.The molds are made of silicone rubber, with CNC or SLA parts serving as master patterns.
These molds can replicate every structural detail and surface texture of theproduct, and produce duplicate products through the casting process. One set of silicone mold can yield 10-15 copies of the part.
It is a cost-effective rapid prototyping and low-volume manufacturing process using silicone molds. It produces high-quality plastic parts with excellent surface finish, precise details, and consistent quality—ideal for prototypes, market samples, and small-batch production without expensive steel tooling.
Sample available
Precision and Quality
Versatile Material Options
Scalable Production
Standard Accuracy: ±0.15mm/100mm, ±0.05mm max
Maximum Part Size:Vacuum equipment can accommodate molds with dimensions of 2000mm×1200mm×1000mm
Minimum Wall Thickness:The minimum wall thickness is 0.5mm, and the optimal range is
1.5mm to 2.5mm
Service Life of Silicone Molds:Each mold can produce a maximum of 10-20 replicated parts,
and the mold storage period is approximately 30 days.
Standard Lead Time:Approximately 50 sets can be produced within 7 to 10 days,
depending on the specific part specifications and quantity.
Features of Vacuum Casting Parts
- Vacuum casting: Low mold cost, fast lead time, ideal for 1–50 pieces.
- Injection molding: High steel mold cost, long lead time, ideal for mass production.
Vacuum casting delivers injection-like quality at a much lower upfront cost.
custom-shaped electrode to erode cavities, blind holes, and internal features that cannot be reached with wire cutting.
- A single silicone mold typically produces 10–15/20 parts, depending on material, geometry, and surface requirements. Multiple molds can be made for larger small-batch orders.
- We offer a full range of polyurethane (PU) resins:
- Rigid plastic (ABS-like, PC-like)
- Flexible rubber & TPU-like material
- Transparent & translucent resin
- High-temperature resistant resin
- Heat-resistant & impact-resistant materials
- Silicone mold: 3–5 days
- Casting parts: 1–3 days
Most small-batch orders are finished in 7-10 working days.
- Vacuum casting has low mold cost and affordable per-part pricing. Cost depends on part size, quantity, material, and surface treatment. We provide detailed quotations based on your 3D files and requirements.
- Yes. We use clear polyurethane resin to produce transparent, translucent, and tinted transparent parts with good clarity and smooth finish.
