SM421AC 17" Professional Floor Scrubber & Buffer

Sale price $749.00 Regular price $799.00
Free Shipping
Continental US
2 Year Warranty
No Sales Tax
Excluding MI
Shipping & Delivery

This item ships free. Same day shipping on most order placed before 2pm EST. Delivery in 2-4 days.

Money Back Guarantee
  • 30-day Money Back Guarantee (Free return for quality issues or shipping damages within 30 days after delivery)

Powerful 2.0 HP Buffer with a 17″ cleaning path and a 3.4-gallon tank for fast, efficient commercial floor scrubbing & polishing.



Product Details

Engineered for serious cleaning professionals and facility managers who demand productivity and durability. With its 2.0 HP motor, 17-inch cleaning diameter, robust 3.4-gallon water tank, and stable, low-speed 175 RPM performance it covers high-traffic areas with ease—making it ideal for malls, hotels, hospitals, warehouses and other large-scale commercial environments.

Key Features
  • 2.0 HP motor provides consistent power for scrubbing, stripping, polishing, and maintenance cleaning.
  • 17-inch cleaning path boosts productivity and reduces total cleaning time.
  • 3.4-gallon solution tank allows longer run times with fewer refills, ideal for large areas.
  • Low-speed 175 RPM operation delivers controlled, effective cleaning without splashing.
  • Durable construction with heavy-duty housing designed for daily commercial use.
  • Compatible with a wide range of brushes, pads, and bonnet systems for multi-surface cleaning.
  • Ergonomic handle design improves operator comfort and reduces fatigue.
  • Stable weight distribution provides smooth operation and consistent pad contact.
What’s Included
  1. Main Unit - Brush Motor Assembly (1 set)
  2. Handle Assembly (1 set)
  3. Water Tank Assembly (1 set)
  4. Pad Driver (1)
  5. Heavy Duty Brush (1)
  6. Soft Brush (1)
  7. Red Burnishing Pad (1)
  8. White Burnishing Pad (1)
  9. Black Burnishing Pad (1)
Technical Specifications
  • Cleaning Width: 17 inches
  • Motor Power: 2.0 HP
  • Brush/Pad Speed: 175 RPM
  • Solution Tank Capacity: 3.4 gallons
  • Voltage: 110V
  • Cord Length: 49 feet
  • Machine Weight: Approximately 131lbs
  • Applications: Tile, concrete, marble, stone, terrazzo, VCT, carpet bonneting
  • Productivity: Up to approximately 4,300 sq ft per hour
Why Choose the SM421AC?

It combines industrial power with everyday usability. Its 2.0 HP motor and 17-inch cleaning path make it ideal for large floors, while the controlled 175 RPM speed offers excellent results across a wide range of surfaces. The large solution tank increases efficiency, and the heavy-duty frame ensures long-lasting reliability. Whether maintaining schools, hotels, warehouses, or retail spaces, this machine is built to deliver consistent, professional results.

Frequently Asked Questions
Can this machine scrub, polish, and strip floors?

Yes. The SM421AC supports scrubbing brushes, stripping pads, polishing pads, and bonnet pads for multi-purpose floor care.

Is 175 RPM considered low speed?

Yes. 175 RPM is the industry standard low speed, ideal for scrubbing, stripping, and controlled cleaning in commercial settings.

Is the machine suitable for large commercial areas?

Absolutely. With its 17-inch path, 3.4-gallon tank, and 2.0 HP motor, it is designed for malls, hotels, warehouses, schools, and other large spaces.

What surfaces can the SM421AC clean?

It is designed for stone, tile, terrazzo, concrete, VCT, and can also be used for carpet bonneting with the appropriate pad.