OF20Pro | Multi-Surface Planetary 20" Concrete Floor Grinder & Sander | Variable Speed




The Onfloor 20Pro is a floor grinder, floor polisher and wood floor sander that can radically increase your diversity.  The 20Pro is a highly efficient machine equipped with Onfloor’s patented triple-belt planetary technology that provides a unique Spirograph pattern on the floor. The 20Pro is designed for multi-surface applications such as sanding wood, grinding concrete, polishing concrete and the removal of all types of coatings and adhesives. It’s light enough to sand wood yet heavy enough to grind, polish and prepare concrete at a high rate of speed. The 20Pro platform also incorporates Onfloor’s unique and patented tool attachment system. This system provides flexibility for the tools to follow the contour of the substrate and scratch it evenly. Therefore, minimizing the over grinding of high spots while consistently scratching the low spots.

The 20Pro is able to prepare more than 600 square feet per hour of concrete per grit on single phase 208-240V power. It’s all Fast n’ Easy with Onfloor.

Tooling packages are available for a multitude of applications including:

Concrete Surface Preparation | Epoxy Removal | Mastic/Glue Removal | Wood Floor Sanding/Refinishing | Stone Polishing
Model OF20Pro
Motor/Power  5 HP/208-240V 50/60HZ
Full Load Amperage 26
Tool Speed 0-1750 RPM Variable
Cutting Width 20"
Vacuum Port 1.5" or 2"
Minimum CFM 180
Weight 210 LBS
Grinding Pressure 190 LBS
Optional Weight 28 LBS (4 max)
Shipping Dimension L: 30" x W:24" x H: 42"
Shipping Weight 230 LBS
  • Large 20” Cutting Path
    • More production in less time-
  • Fit Through Standard Door
    • High production access to smaller floors-
  • Heavy Duty Belt System
    • Provides continuous operation with minimal downtime-
  • Up To 300 lbs. Grinding Pressure
    • Increases productivity with more grinding pressure-
  • Variable Speed Control
    • Maximizes efficiency by adjusting speed to application requirements-
  • Patented Triple Belt Planetary
    • Creates more torque with less power-
  • Patented Flexible Tool Plates
    • Follow the contour of the floor for faster production-
  • Removable Handle
    • Reduces overall height for mobilization-
  • Self-Maintenance Platform
    • Replace belts and bearings in minutes not hours-
  • Wet/Dry Operation
    • Machine operates dry with dust collector or wet with water-