Guide to rapid prototyping services in China: 3D printing (SLA, SLS, FDM, MJF), CNC prototyping, vacuum casting, and rapid tooling for product development.
China has become a global hub for rapid prototyping, offering competitive pricing and fast turnaround. Most prototypes can be produced in 3-10 business days. Understanding the right process for your stage of product development saves both time and money.
SLA (Stereolithography): Resin-based, smooth surface finish, good detail. Best for form-fit prototypes, visual models, and master patterns. Layer thickness 0.05-0.1mm. Cost: $20-100 per part depending on size.
SLS (Selective Laser Sintering): Nylon powder, good strength, no support structures needed. Best for functional prototypes, small batch production. Layer thickness 0.1-0.12mm. Cost: $30-150 per part.
FDM (Fused Deposition Modeling): Filament-based (PLA, ABS, PETG, PC). Lower resolution but lowest cost. Best for large prototypes, jigs and fixtures. Layer thickness 0.1-0.3mm. Cost: $10-50 per part.
MJF (Multi Jet Fusion): HP technology, excellent mechanical properties, fast build speed. Best for production-quality functional prototypes. Cost: $40-200 per part.
Metal 3D Printing (DMLS/SLM): Titanium, aluminum, stainless steel, tool steel. Best for complex metal parts, conformal cooling channels in molds. Cost: $200-1000+ per part.
CNC machining remains the most used prototyping method for metal and plastic parts due to material properties matching production parts exactly.
Urethane casting in silicone molds from a master pattern. Ideal for 10-50 pieces with properties similar to production plastics.
| Stage | Recommended Process | Quantity | Lead Time | Budget |
|---|---|---|---|---|
| Concept model | FDM or SLA 3D print | 1-3 | 2-3 days | $ |
| Design validation | SLA or SLS 3D print | 3-10 | 3-5 days | $$ |
| Functional test | CNC or MJF 3D print | 5-20 | 5-7 days | $$$ |
| Market test batch | Vacuum casting or rapid tooling | 20-200 | 10-15 days | $$$ |