Feature:
Working capacity
| No. | BNT-312 | Model No. | 510B |
| Power | 24 | Work width | 510 |
| Squeege width | 760 | 1750 | |
| Brush quantity | 1 | Brush diameter | 510 |
| Brush pressure | 25 | Brush speed | 250 |
| Brush motor | 560 | Suction motor | 370 |
| Suction vacuum | 110 | Solution tank capacity | 50 |
| Recovery tank capacity | 55 | Battery quantity | 2(120) |
| Machine weight | 86 | Machine length | 1150 |
| Machine height | 1010 | Machine width | 500 |
| Noise level | 68 | Taction motor | 0W |
| Battery | About the battey--Charging time: 8-10hours;Working time: 3-3.5 hours | Accessories | Charger、Batteries、20" Brush、20"Pad driver |