| Models | Liberty SC50 X20R |
| Scrub Path | 20 in (51 cm) |
| Scrub Head | REV random orbital: 2,250 rpm with 1/4 in orbits, 10-30 rpm macro rotation |
| Scrub Pressure | 64 lb / 88 lb (29 / 40 kg) |
| Solution Tank | 15 gal (57 L) |
| Recovery Tank | 14 gal (53 L) |
| Squeegee Width | 30.2 in (76.7 cm) |
| System Voltage | 24 V |
| Battery Capacity (max) | 255 Ah |
| Max Speed, Autonomous | 2.35 mph (1.055 m/s) |
| Max Transport Speed, Manual | 3.1 mph (5.0 km/h) forward; 1.62 mph (2.6 km/h) reverse |
| Gradeability | 15% (8.53°) manual transport; 9% (5.14°) manual cleaning; 2% (1.15°) autonomous |
| Minimum Aisle Turn Width (manual) | 62.7 in (159.2 cm) |
| Sound Pressure Level | 63 dBA |
| Protection Grade | IPX4 |
| Dimensions (L x W x H) | 53.3 x 30.0 x 56.8 in (135.5 x 76.1 x 144.1 cm) |
| Gross Weight | 1,067.9 lb (484.4 kg) with full solution tank, batteries and 165 lb (75 kg) operator |
| Cleaning Modes | CopyCat, Fill-in, Manual |
| Safety Certification | CSA/ANSI C22.2 No. 336-17 |
| Model Numbers | 56104503 |
Technical specs may include optional equipment that is not included with all units.
Reconditioned Nilfisk Liberty SC50 X20R 20" REV Orbital Autonomous Floor Scrubber
Our Take (from the SES Sales Team)
“The Liberty SC50 X20R is a stand-on scrubber-dryer that can also clean on its own, which makes it a fit for schools, hospitals, airports, malls and large offices that have the same big floors to scrub every night and not enough people to do it. Teach it a route once, or drive the outline of an area and let it plan the interior, and the operator is free for restrooms, trash and detail work.
What sets this machine apart is the pairing of autonomy with the REV head. The 20-inch random orbital deck scrubs at 2,250 rpm with up to 88 pounds of down pressure, and the 15-gallon solution and 14-gallon recovery tanks keep it working between refills. An independent safety system with safety-rated and drop-off sensors, certified to CSA/ANSI C22.2 No. 336-17, lets it run around people. This is a reconditioned unit, so ask us about its battery setup.
The trade-off is layout. Autonomous mode is rated for grades of only 2 percent, routes have to be taught and kept current, and it needs a 62.7-inch aisle for a manual turn. For small or cluttered rooms, a walk-behind REV such as the Advance SC500 X20R is simpler.”
Autonomous REV scrubbing with a 20-inch orbital head.
The Nilfisk Liberty SC50 X20R is an autonomous stand-on scrubber-dryer with a 20-inch (51 cm) REV random orbital scrub head. 3D, 2D, infrared and depth sensors with SLAM mapping let it clean without pre-mapping. CopyCat mode repeats a route the operator drives once, Fill-in mode plans the interior after the operator drives the perimeter, and Manual mode runs it like a conventional scrubber.
An independent safety system with safety-rated sensors and drop-off detection can stop the machine immediately, and the SC50 is certified to CSA/ANSI C22.2 No. 336-17. It carries 15 gallons (57 L) of solution and 14 gallons (53 L) of recovery, runs on a 24 V system and is rated at 63 dBA. Digital reports show where, when and by whom cleaning was done. This listing is a reconditioned unit.
Features:
- CopyCat, Fill-in and Manual cleaning modes
- 20-in REV random orbital scrub head
- Independent safety system with drop-off sensors
- Certified to CSA/ANSI C22.2 No. 336-17
- 15 gal solution and 14 gal recovery tanks
Condition: Refurbished (Reconditioned). Learn more about Our Reconditioning Process Here.









