Practice Guide
Cordless Precision Sanding – Mirka AOS-B 130NV 32 mm in Professional Use
With the Mirka AOS-B 130NV, Mirka redefines point and spot sanding: cordless, low-vibration, and highly precise even in tight spaces. The 32 mm orbital sander is designed specifically for touch-up work, spot repair, and precision sanding in hard-to-reach areas.
Product Overview & Variants
| Model | Backing Pad | Orbit | Speed | Weight |
|---|---|---|---|---|
| AOS-B 130NV | Ø 32 mm | 3 mm | 4,000–8,000 rpm | 0.57 kg (incl. battery) |
Battery
Li-Ion 10.8 V / 2.5 Ah
Li-Ion 10.8 V / 2.5 Ah
Runtime
up to 45 min (depending on load)
up to 45 min (depending on load)
Charging Time
approx. 50 minutes
approx. 50 minutes
💡 Pro Tip: For spot repair on clear coat surfaces, professionals recommend a speed of around 6,000 rpm and moderate pressure of about 10 N – this helps avoid edge marks and uneven surfaces.
Recommended Base Settings (Guideline Values)
- Speed: 4,000 – 7,000 rpm (depending on material)
- Feed pressure: approx. 10 N
- Abrasive grit: P1000 – P3000 (depending on finish)
- Optimal charging temperature: 18–24 °C
- Operating temperature range: 4–40 °C
Pro Workflow in 6 Steps
- Clean and mask the sanding area.
- Attach a suitable abrasive pad centered on the Ø 32 mm backing pad.
- Insert a fully charged battery and set the desired speed.
- Maintain even pressure (≈ 10 N) — avoid tilting.
- Wipe the surface with a microfiber cloth and inspect the finish.
- After each session, check the battery and recharge if needed.
Troubleshooting (Quick Help)
| Problem | Cause | Solution |
|---|---|---|
| Machine does not start | Battery empty or not correctly inserted | Insert or charge the battery properly |
| Speed drops | Too much pressure / overheating | Reduce pressure / allow short cooldown |
| LED flashes red | Battery voltage too low | Recharge the battery |
| Tool stops during sanding | Thermal protection active | Let the tool cool down for 15–30 minutes |
Maintenance – 5-Point Checklist
- Always remove the battery before maintenance.
- Use only genuine Mirka backing pads.
- Clean housing with a damp cloth — never use solvents.
- Check charger regularly for dust buildup.
- Service must be performed by authorized Mirka service centers only.
FAQ – Frequently Asked Questions
- How long does the battery last? Up to 45 minutes, depending on usage and load.
- Can I use third-party batteries? No, only Mirka BPA 10825/BPA 10850 batteries are approved.
- What does the red LED mean? Overheating or low voltage – pause operation.
- What grit works best for spot repair? P1500–P3000 for smooth, invisible transitions.
- How do I activate Bluetooth? Insert the battery, hold the rpm+ button, and power on the tool.
Conclusion
The Mirka AOS-B 130NV is the perfect partner for precise, cordless sanding on small or detailed surfaces. With its compact size, precise speed control, and fast charging, it’s a must-have for professionals in paint finishing, bodywork, and spot repair applications.
