OF20S-H | Multi-Surface Planetary 20" Concrete Floor Grinder & Polisher | Single Speed High




The Onfloor OF20S-H is a multi-surface planetary concrete floor grinder, concrete floor polisher that is equipped with Onfloor’s patented triple-belt planetary technology.  The OF20S-H operates on 208-240V, 1 Phase and is powerful enough for professional users yet simple enough for almost anyone to operate and maintain. The high tool speed (1000 rpm) of the OF20S-H makes it an ideal concrete floor grinder capable of achieving production rates as high as 500 square feet per hour. The OF20S-H also incorporates Onfloor’s patented tool attachment system that is known for being the fastest tool change in the industry.

Tooling packages are available for a multitude of applications including:

Concrete Surface Preparation | Epoxy Removal | Mastic/Glue Removal
Model OF20S-H
Motor/Power  5HP/208-240V 50/60HZ
Full Load Amperage 23
Tool Speed 1000
Cutting Width 20"
Vacuum Port 1.5" or 2"
Minimum CFM 180
Weight 190
Grinding Pressure 170
Optional Weight 28 LBS (4max)
Shipping Dimension L: 31" x W:23" x H: 48"
Shipping Weight 210 LBS
  • 20” Cutting Path
    • More production in less time-
  • High-Speed Grinding
    • Grind Concrete, Stone, Terrazzo and more-
  • Lightweight High Speed
    • Faster operation and easy mobilization-
  • Up To 300 lbs. Grinding Pressure
    • Increases productivity with more grinding pressure-
  • 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-