OF20Pro | Multi-Surface Planetary 20" Concrete Floor Grinder & Sander | Variable Speed
The OF20Pro is a professional high-performance planetary floor grinder and sander designed for heavy-duty concrete surface preparation, polishing, and coating removal. Built for contractors and industrial flooring specialists, it combines high power, precision control, and multi-surface capability to handle demanding job site applications with efficiency and consistency.
Engineered with Onfloor’s patented triple-belt planetary system, the OF20Pro delivers superior torque transfer while maintaining smooth and stable operation. Its 20-inch working width allows for high production rates, making it suitable for large-scale projects while still maintaining control in detailed surface work. The machine is capable of handling concrete grinding, epoxy removal, adhesive stripping, stone polishing, and wood sanding, making it a true multi-surface solution.
The variable speed control (up to 1750 RPM) allows operators to adjust performance depending on the material and application, improving precision and reducing surface damage. Its heavy-duty frame and industrial-grade construction ensure durability in continuous professional use, while the removable handle system improves portability and storage efficiency.
Designed for both wet and dry operation, the OF20Pro can be paired with dust extraction systems for safer and cleaner job site performance. Its flexible tool plate system follows floor contours, helping maintain consistent grinding pressure and producing an even surface finish across uneven substrates.
With high grinding pressure capacity and a powerful 5 HP motor system, the OF20Pro is built for productivity, stability, and professional-grade results on demanding flooring projects.
Technical Specifications
FeatureSpecificationModelOF20ProTypeMulti-Surface Planetary Floor Grinder & SanderCutting Width20 inchesMotor Power5 HPVoltage208–240V / Single PhaseAmperage26ASpeed0–1750 RPM (Variable Speed)Grinding PressureUp to 190 lbs (optional weights up to 302 lbs system capacity depending setup)Machine Weight~210 lbsShipping Weight~230 lbsVacuum Port1.5" or 2"Minimum CFM180 CFMOperationWet / Dry compatibleDrive SystemTriple-belt planetary systemFrameHeavy-duty industrial steel
Key Features
20" high-production grinding and polishing path
Variable speed control for different materials and applications
Patented triple-belt planetary drive for high torque efficiency
Multi-surface capability: concrete, epoxy, wood, stone, adhesives
Wet and dry operation flexibility
Flexible tool plates for consistent surface contact
Heavy-duty industrial construction for long-term durability
Removable handle for easier transport and storage
Designed for professional contractors and large-scale projects
Applications
The OF20Pro is ideal for:
Concrete grinding and surface preparation
Epoxy and coating removal
Adhesive, glue, and mastic stripping
Stone and terrazzo polishing
Wood floor sanding and refinishing
Industrial and commercial flooring restoration
