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

Availability: in stock

SKU: 498408


$7,495.00 >

Here is another multi-surface planetary concrete floor polish that works faster like no other. Meet OF20S-H Concrete Floor Grinder. The Onfloor OF20S-H is a multi-surface planetary concrete floor grinder, concrete floor polisher 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 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




  • 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 282 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: The machine operates dry with a dust collector or wets with water.





5HP/208-240V 50/60HZ

Full Load Amperage


Tool Speed


Cutting Width


Vacuum Port

1.5" or 2"

Minimum CFM




Grinding Pressure


Optional Weight

28 LBS (4max)

Shipping Dimension

L: 31" x W:23" x H: 48"

Shipping Weight

210 lbs