CleanFreak 21" Ultra High Speed (UHS) Propane Floor Burnisher - 2,000 RPM - CPL-PE400BU-21-CF

CleanFreak 21" Ultra High Speed (UHS) Propane Floor Burnisher - 2,000 RPM - CPL-PE400BU-21-CF

This CleanFreak 21 inch propane floor burnisher will polish commercial floors to an extremely high shine when used with the correct floor polishing pads. The 18HP, 603 cc Kawasaki engine will turn a pad at 2000 RPM for maximum floor polishing performance. This machine is one of our top performers and you can't beat the price! Comes backed by a 2 year warranty on the engine and 1 year on parts and labor.

Each CleanFreak propane burnisher comes equipped with SAFR™ (Steady Air to Fuel Ratio) technology which is a system that monitors the pressure between the air filter and the carburetor. As the air filter becomes dirty, the pressure decreases. With this included SAFR technology, the variation in pressure results in a reduction in fuel delivered to the engine. The result is a Steady Air to Fuel Ratio no matter what condition the air filter is in. Not only does this machine perform better than the competition, but it also saves you money by using 34 percent less fuel while requiring 40 percent fewer oil changes.

 Just because this machine comes standard with SAFR technology does not mean you never have to clean the air filter. We always recommend cleaning the air filter before each and every use for maximum performance from your floor burnisher.

If this machine is not exactly what you're looking for, please take a look at our full line of propane, electric and battery burnishers.

Features

• SAFR technology keeps emissions low and reduces fuel usage when the air filter is dirty.
• Catalytic muffler exceeds EPA and CARB minimum requirements.
• Easy access to filters, battery, and oil for quick inspection and maintenance.
• Quick release strap for easy change out of the steel propane tank.
• Adjustable wheels can be moved forward or backwards to increase or decrease the pad pressure.
• Triple anchor welded adjustable ergonomic handle for improved operator comfort and durability.
• American made aluminum castings and sealed AGM battery.

What our Experts Think

• Ultra high-speed 2,000 RPM propane burnishing system delivers a deep, mirror-like gloss on finished hard floors
• 21" wide pad path provides high productivity coverage (~25,000 sq. ft./hr) for large commercial spaces
• Powerful 18 HP Kawasaki 603cc engine ensures consistent torque under continuous heavy-duty operation
• Propane-powered design allows cordless, unrestricted movement—ideal for large retail, warehouse, and facility floors
• Engineered for high-traffic floor polishing and gloss restoration, especially on VCT, terrazzo, and sealed concrete
• SAFR™ engine technology helps maintain performance and reduces fuel consumption even as the air filter loads
• Heavy-duty ~187 lb frame adds down pressure for faster burnishing and more uniform shine
• Catalytic muffler system supports lower emissions and compliance with EPA/CARB standards for commercial indoor use
• Adjustable handle and wheel system improves operator comfort and precise pad pressure control
• Designed for professional floor care teams needing maximum shine output with minimal downtime per pass
• Best suited for large-scale maintenance programs in supermarkets, malls, airports, and institutional facilities
• Overall expert view: a high-output, no-compromise propane burnisher built for maximum gloss, speed, and coverage efficiency

Q&A

Q: What is the CleanFreak 21" Ultra High Speed (UHS) Propane Floor Burnisher used for?
A: The CleanFreak 21" propane burnisher is designed for high-speed polishing of hard floors like VCT, tile, and finished concrete, delivering a high-gloss “wet look” shine in commercial environments.

Q: What speed and motor does it use?
A: It operates at 2,000 RPM and is powered by an 18 HP, 603 cc Kawasaki engine, providing strong, consistent burnishing performance for large-scale floor maintenance.

Q: How large of an area can it clean?
A: With a 21-inch pad path, it can polish up to approximately 25,000 sq. ft. per hour, making it ideal for warehouses, malls, schools, and hospitals.

Q: Why use a propane burnisher instead of electric?
A: Propane power delivers cordless operation and high productivity, allowing continuous use without downtime for charging or plugging in—ideal for large open spaces.

Q: What makes this model “ultra high speed”?
A: The 2,000 RPM pad speed is optimized for burnishing (not scrubbing), producing a deep, reflective gloss on finished floor coatings.

Q: Is it suitable for daily use?
A: Yes. It’s built for heavy-duty commercial use, with a durable frame, ergonomic handle, and professional-grade engine designed for frequent operation.

Q: What safety or efficiency features does it include?
A: It includes SAFR™ technology, which helps maintain a stable air-fuel ratio, improving fuel efficiency and reducing emissions as the air filter loads up.

Q: Does it come ready to use?
A: Yes. It includes a steel propane tank and electric start system, so it’s ready for commercial deployment with proper pads installed. 

Maintenance Tips