| Specification | Value / Notes |
|---|---|
| Brand / Line | ALTO / Clarke / Advance Propane Burnisher (PBU) series |
| Model / Code | N1BBM 21 KAW 15 MUFFLER, 08989A |
| Pad / Burnishing Path | 21 in (≈ 53 cm) |
| Engine | Kawasaki |
| Rated Horsepower / Class | 17 HP |
| Pad Speed (no load) | ≈2,000 rpm for 21-inch models in PBU series. |
| Auto Fuel Shutoff | Yes (fuel shutoff when engine stops) |
| Low Oil Shutdown / Safety | Yes (electric / mechanical low-oil shutdown) in PBU line |
| Catalytic Muffler / Emissions Control | Yes, catalytic muffler standard on PBU line |
| Sound Level | < 89 dB A |
| Weight (Operating / with tank & full fuel) | ~ 221 lb (≈ 100 kg) for 21-inch model |
| Dimensions (L × W × H) | 56 in × 23.5 in × 39.5 in (≈ 142.4 cm × 60 cm × 100 cm) |
Reconditioned Clarke N1BBM 21" 17HP Kawasaki LPG Burnisher
The Clarke N1BBM 21" LPG Burnisher delivers powerful, consistent high-gloss results with the reliability of a Kawasaki 17HP propane engine. Designed for professional floor care in large facilities, this burnisher provides outstanding productivity and shine while reducing operator fatigue. Its 21-inch path and propane-powered performance make it ideal for high-traffic areas where extended run times and mobility are critical. With rugged construction, easy maneuverability, and dependable Clarke engineering, the N1BBM ensures maximum efficiency and long-lasting durability on even the toughest floor maintenance jobs.
Motor is serviced with new filters, spark plugs, and cooling fins cleaned. Tested and inspected prior to shipping.
Condition: Refurbished (Reconditioned). Learn more about Our Reconditioning Process Here.
Features
- 17-hp Kawasaki twin engine gives powerful, dependable performance
- Durable, rugged cast aluminum alloy housing
- Flexible pad driver follows contour of uneven floors
- Adjustable, ergonomic handle for operator comfort
- “Tip-back” capability facilitates easy pad change


