Automotive Interior Sandblasting & Shot Peening Systems
Project Background
The client is an automotive interior parts supplier in Brazil for VW, Stellantis, and other regional OEMs, producing center consoles, vents, and door handle trims. Their existing thermal curing line couldn't meet the cycle time required for new vehicle programs.
The Challenge
Automotive interior parts require top visual quality (B-class surface) — no particles, no sagging, no orange peel allowed. Plastic substrates can't tolerate high heat (≤80 °C), so traditional thermal drying doesn't work.
MUSI's Solution
MUSI deployed a sandblasting solution: electrostatic liquid spray of high-gloss UV paint → IR pre-heating (only 60 °C) → UV lamp combination cure (mercury + LED), from spray to full cure in just 90 seconds.
Equipment Configuration
| Line type | Overhead chain sandblasting system |
|---|---|
| Spray method | Electrostatic bell cup (fine atomization) |
| UV lamps | Mercury 200 W/cm × 4 + LED 365 nm × 2 |
| Curing time | 30 seconds |
| Cycle time | 15 sec/piece |
| Film gloss | ≥90 GU (60° angle) |
| Film hardness | 2H |
| Daily capacity | 4,000-5,000 pcs |
Implementation
60-day delivery. sandblasting is a new process — MUSI process engineers and the client's tech team tested for 3 weeks before settling on the optimal UV cure profile.
Results
Cycle time 5x faster than thermal cure. CapEx per unit area reduced 30%. Visual pass rate 99.5%. The client won supplier nomination for popular new EV models (BYD South America, Renault Latam).
Client Feedback
"sandblasting was new for automotive interior in our region. MUSI's process solution is mature and proven. Our capacity bottleneck disappeared overnight."
— Project Manager, Client Side
Get a Similar Solution
If your industry and requirements match this case, contact MUSI to schedule a free consultation. We'll design an optimal solution based on your specific workpieces, capacity, and facility.