NaceCare DHB 420 K-8025052 Battery Hydrowasher – 14", 48V, 50 Min, 750 RPM, H-Box
NaceCare DHB 420 K-8025052 – 14-Inch Battery Hydrowasher, 48V, 50-Minute Cordless Runtime
The NaceCare DHB 420 (part number K-8025052) is the battery-first version of NaceCare's 14-inch cylindrical Hydrowasher platform — a 48V lithium battery providing 50 minutes of cordless runtime, with full recharge in 1 hour. The included Hybrid Box (H-Box) converts the machine to unlimited 110V operation and adds an optional steam cleaning mode. At 750 RPM, 800,000 bristles, 57 lb brush pressure, and 64 dB(A), the DHB 420 delivers the same cylindrical brush cleaning as the DH 420, with the added flexibility of cordless operation where outlets are unavailable or cords are impractical.
DHB 420 K-8025052 48V Battery System and H-Box Hybrid Operation
- 48V lithium battery, 50-min cordless runtime: covers single-room or single-area cleaning runs without cord management; 50 minutes is appropriate for restroom cleaning, kitchen floor scrubbing, and focused escalator maintenance between charging cycles.
- 1-hour full recharge time: short recharge window allows the machine to be returned to service quickly after a cleaning session; charged during a break and deployed again for a second session in a single shift.
- H-Box 110V backup — unlimited runtime when outlet access is available: connects to a standard 110V outlet to extend operation indefinitely when cords are not a constraint, eliminating battery as a limiting factor on longer cleaning sessions.
- Optional steam mode via H-Box: same steam sanitizing capability as the DH 420 Steam when connected via H-Box; chemical-free high-temperature surface sanitizing available when 110V is accessible.
- 800,000 bristles / 750 RPM counter-rotating cylindrical brushes: higher brush speed than the DH 420 (650 RPM) in battery mode; the 750 RPM rate reflects the battery motor's optimized output at 48V.
- 64 dB(A) quiet operation: consistent noise level whether running on battery or H-Box 110V power; appropriate for occupied environments during cleaning hours.
When to Choose the DHB 420 Battery vs. the DH 420 Corded H-Box Model
The DHB 420 is the right choice when cord-free operation is required for at least part of the cleaning routine — areas without nearby outlets, open floor spaces where cord management is hazardous, or areas where the machine needs to reach without trailing cord. The H-Box fallback means the DHB 420 can still run unlimited hours when outlets are accessible, making it the more versatile option for facilities with mixed cord-access conditions. The DH 420 (K-8025051) is the better choice for facilities with consistent outlet access where battery constraints are an unnecessary cost and complexity.
DHB 420 Multi-Surface Cleaning and Wet Sweep Capability
The DHB 420 cleans hard floors, carpets, and escalators with brush selection changes. Wet sweep capability picks up coarse debris and fine dust simultaneously with scrubbing — no pre-sweeping required. UltraBrush compatibility: yellow for carpet, grey for general hard floors, black for aggressive hard floor scrubbing. The trigger-controlled solution dispensing applies solution only when and where needed, conserving tank capacity on the 1-gallon solution tank.
| Part Number | K-8025052 |
| Cleaning Width | 14 inches |
| Working Capacity | 4,000 sq ft/hr |
| Battery | 48V lithium |
| Runtime (full charge) | 50 minutes |
| Charge Time (full) | 1 hour |
| Brush Speed | 750 RPM |
| Brush Pressure | 57 lbs |
| Brush Motor | 500W |
| H-Box Power | 110V (unlimited runtime fallback) |
| Steam Option | Yes (via H-Box) |
| Solution Tank | 1 gallon |
| Recovery Tank | 1 gallon |
| Noise Level | 64 dB(A) |
| Weight | 69 lbs |