| Models | AS850R |
| Cleaning Width | 32 in |
| Solution Tank | 31 gal (120 L) |
| Recovery Tank | 31 gal (120 L) |
| Brush/Pad Diameter | 2 x 16 in |
| Brush Speed | 204 rpm |
| Brush/Pad Pressure | 80 lb |
| Brush Motors | 2 x 0.4 hp |
| Vacuum Motor | 0.67 hp, 3-stage |
| Maximum Speed | 3.7 mph |
| Max. Productivity (theoretical) | 55,218 sq ft/h |
| Sound Pressure Level | 69 dB(A) |
| Max. Loading Weight | 968 lb |
| Dimensions (L x W x H) | 62.2 x 35.0 x 48.4 in |
| Model Numbers | AS850R |
Technical specs may include optional equipment that is not included with all units.
Demo Viper AS850R 32" Disc Rider Floor Scrubber
Our Take (from the SES Sales Team)
“The AS850R is Viper's 32-inch rider for facilities that have outgrown a walk-behind: schools, supermarkets, hotels and warehouses with open hard floors. Viper aims it at areas larger than 50,000 square feet, and the 31-gallon solution and recovery tanks let an operator cover a lot of that ground between refills. Two 16-inch discs turn at 204 rpm with 80 pounds of down pressure, which suits routine scrubbing on tile, vinyl, marble and concrete.
What stands out is how simple it is to run. One-touch scrubbing, four solution flow rates, a drive pedal with the parking brake built in, and manual levers for the deck and squeegee keep training short. The squeegee hangs on the machine for moving through narrow areas, and a USB port and front bumper are standard.
The trade-off is that this is a straightforward mid-size rider, not a heavy industrial machine. Top speed is 3.7 mph, and if you need more coverage per pass, the 39-inch AS1050R with 53-gallon tanks is the next step up. This listing is a demo unit.”
“Ordered a demo model scrubber, they were very responsive to work out the shipping to our residence, got the scrubber 7 days after the purchase and the machine works great, very happy!” — Lynn H., Google review
A 32-inch disc rider scrubber for large hard floors.
The Viper AS850R is a medium-sized ride-on scrubber, and this listing is a demo unit. It cleans a 32-inch path with two 16-inch brushes or pads turning at 204 rpm under 80 lb of pressure, powered by two 0.4 hp brush motors. Solution and recovery tanks each hold 31 gallons (120 L), and a 0.67 hp three-stage vacuum motor handles water pickup.
Viper rates the AS850R for hard floor areas larger than 50,000 sq ft, with a theoretical maximum of 55,218 sq ft per hour at a top speed of 3.7 mph, on tile, vinyl, sealed wood, marble and concrete. The seat has an operator detection safety switch, the drive pedal includes electronic braking with a parking brake, and the dashboard uses single-touch buttons.
Features:
- Two 16-inch discs at 204 rpm with 80 lb of pad pressure
- 31-gallon solution and recovery tanks
- One-touch scrubbing with four solution flow rates
- Electronic braking with the parking brake in the drive pedal
- Built-in squeegee hanging system and USB charging port
Condition: Refurbished (Reconditioned). Learn more about Our Reconditioning Process Here.



