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Clarke® RA40™ 20" Ride On Automatic Floor Scrubber

SKU# CRK-56384073


List Price: $8,444.00

Regular Price: $7,600.00

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Quick Overview

  • Rotary style scrub head
  • 20 inch scrubbing path
  • 18.5 gallon solution tank
  • 18.5 gallon recovery tank
  • Comes w/ batteries, on-board charger & pad driver
  • 2.5 hour run time

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This compact, highly maneuverable 20 inch Clarke RA40 automatic floor scrubber is designed to elevate the cleanliness, health and safety of your facility to the next level. Every cutting edge feature from the ultra sharp turning radius to the on-board chemical mixing system has been engineered to the high performance and reliability standards you have come to expect from Clarke over the past 100 years!

This rider scrubber comes equipped with SmartFlow™ technology that automatically reduces the solution flow rate when the operator slows down. Automatically reducing the flow rate on turns, edge cleaning or maneuvering around obstacles helps to avoid water left behind and increases the productivity by up to 50% per tank. This means greatly reduced slip and fall risk and your cost to clean a facility. Reducing the amount of cleaning solution used also prevents wasting water and chemical, increasing sustainability.

The small profile design of the RA40 provides full sight line visibility, a short turning radius and the ability to clean in tight spaces. It also contributes to a low center of gravity that, when combined with Safe-T-Steering, prevents tipping incidents. All these features contribute to safer operation for both operators and other building occupants.

For more great cleaning machines from Clarke, please check out their full lines of walk behind and rider floor scrubbers that we have to offer.


  • Extremely user friendly and easy to learn dashboard with One-Touch button and intuitive display integrated into the steering wheel.
  • Exclusive multifunction digital display allows for maximum customization of machine settings.
  • The Chemical Mixing System automatically mixes adjustable levels of concentrated chemicals stored in an on-board reservoir with clean water stored in the solution tank, allowing you to stop wasting unused chemicals, get more consistently clean floors and give the RA40 an extra boost of cleaning power for heavily soiled areas.
  • The built-in squeegee hanging system on tank allows for safe transportation through doorways and tight areas, while permitting tank drying.
  • Built in large, 18.5 gallon tank for high cleaning productivity.
  • Two Levels of scrubbing pressure for added cleaning power in heavily soiled areas.
  • A wide, ergonomic operator seat and steering wheel provide a more comfortable driving experience, while the low step-on design makes for easy onboarding and offboarding.
  • Scrub deck and squeegee raise and lower quickly and easily.
  • Lid lifts off easily, providing access to clean tank and debris catcher.


Additional Information

Manufacturer Nilfisk
Brand Clarke
Manufacturer Sku 56384073
Cleaning Width 20 inches
Squeegee Width 28.3 inches
Solution Capacity 18.5 gallons
Recovery Tank Capacity 18.5 gallons
Brush/Pad Speed 155 RPM
Brush/Pad Diameter 20 inches
Brush/Pad Pressure 33 lbs. (scrubbing) & 66 lbs. (stripping)
Max Speed 3.7 MPH
Cleaning Rate Per Hour 32,560 sq. ft. (max speed) | 22,000 sq. ft. (normal cleaning speed)
Dimensions 50" L x 22" W (w/o squeegee) x 40" H
Operating Weight 754 lbs.
Brush Motor 3/5 HP
Vacuum Motor 0.42 HP
Battery 24 V (2 - 12V) 130 Ah wet batteries w/ onboard charger
Run Time 2.5 hours
Noise Level (dB) 68 dB A ±3
Water Lift 39"
Warranty Body - 8 years
Parts - 5 years
Labor - 2 years
Batteries - Prorated up to 18 months
Travel - 180 days
Internal Search Number 135126

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