Micro Rider Scrubber
The Most Productive 20 inch Scrubber
• SmartFlow™ Solution Control System
• Excellent Maneuverability
• Flexible Cleaning to Address Varying Soil Levels
• Designed to Provide Maximum Clean and Safety
Introducing the Clarke RA40™
Meet the RA40™: the most innovative Clarke scrubber ever.
This compact, highly maneuverable 20 inch autoscrubber 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
onboard 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!
SmartFlow™ technology increases productivity.
SmartFlow technology 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 cost to clean.
Reducing the amount of cleaning solution used also prevents wasting
water and chemical, increasing sustainability.
Extreme maneuverability and safer control.
The small profile design of the RA40 provides full sightline 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-TSteering, prevents tipping incidents. All these features contribute to
safer operation for both operators and other building occupants.
Steering Wheel Control Panel
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.
CMS Control Button
Clarke’s exclusive Chemical Mixing System
automatically mixes adjustable levels of
concentrated chemicals stored in an onboard
reservoir with clean water stored in the solution
tank. That means you can stop wasting unused
chemical, get more consistently clean floors and
give the RA40 an extra boost of cleaning power
for heavily soiled areas.
Onboard Squeegee Storage
Built-in squeegee hanging system on tank
allows for safe transportation through
doorways and tight areas, while
permitting tank drying.
Brush Assembly
Tools-free removable brushes
or pads.
Recovery Tank Access
Recovery tank fully tiltable gives easy
access to battery compartment and
the detergent container.
Battery Compartment
The RA40™ is available with wet or
AGM maintenance-free batteries.
Large, 18.5 gallon tank for
high cleaning productivity
Two levels of scrub pressure
for added cleaning power in
heavily soiled areas
Water-level indicator easily viewable from the operator’s seat
Low step-on design makes
for easy onboarding and
Wide, ergonomic operator seat
and steering wheel provide
a more comfortable driving
Easy-removal squeegee with
built in squeegee hanger
stores easily on the backside
when not in use
Scrub deck and squeegee raise
and lower quickly and easily
Lid lifts off easily, providing
access to clean tank and
debris catcher
Drain Hose
No-nonsense, easyflow hose makes
draining the tank simple.
Path Width
20 in (51 cm) disc
Tank Capacities
18.5 gal (70 L)
24 V
Brush Motor Speed
155 RPMs
Brush Motor
0.6 hp (450 W)
Brush Pressure
33/66 lb (15/30 kg)
Drive Motor
0.6 hp (400 W)
Working Speed
3.7 mph (6 kph)
Max Climbing Rate
Productivity at 3.7 mph
32,560 ft2/hr (3,025 k2/hr)
Productivity at 2.5 mph
22,000 ft2/hr (2,044 k2/hr)
Vacuum Motor
0.42 hp (310 W)
Accessories and Replacement Parts
Vacuum Waterlift
39 in (9.8 KPA)
• Genuine Linatex® squeegee blade kit (pn 56384681)
IP Protection Class
Length x Width w/o Squeegee x Height
Max Transportation Speed
• Polyurethane squeegee blade kit (pn 910000490)
50 x 22 x 40 in (127 x 55 x 102 cm)
• Gum rubber squeegee blade kit (pn 910000060)
• Short trim pad holder (pn L08837018)
3.7 mph (6 kph)
Max Running Time
• Red pads, case of 5 ea (pn 976068)
2.5 hours
Minimum Turnaround Aisle Width
70.9 in (180 cm)
Sound Pressure Level
Normal Mode
Silent Mode
• Prolene brush (pn L08837025)
• USB charging kit (pn 9100000784)
68 dB A ±3
62 dB A ±3
Squeegee Width
28.3 in (72 cm)
Water Flow (CL/M)
0,75 / 1,5 / 3,0
• Chemical mixing kit (pn 9100000953)
• Flashing safety beacon kit (pn 9100000663)
Gross Weight
754 lb (342 kg)
Part Numbers
56384073 – with (2) 130 Ah wet batteries
56384074 – with (2) 140 Ah maint-free AGM batteries
Specifications are subject to change without notice.
Ease of Use
• Intuitive design for minimal training
• Dashboard with digital display
placed in the steering wheel
• Large operator seat and wide
space for legs for all different users
• Intuitive icon buttons for vacuum,
brush rotation and water/
detergent flow
• Wide range of accessories to make
the cleaning job as faster and
comfortable as possible
• SmartFlow Technology
• 20 inch scrubbing width,
18.5 gallon water tanks and
3.7 mph working speed
• Chemical mixing system gives full
control over detergent use making
possible to use chemicals only
when really needed
• Water and chemical flow can be
changed while working according
to floor conditions
• Thoroughly tested high-quality
• Simple to clean and maintain due to
its surface finishing
• Fast installation and removal of
squeegee blades
9435 Winnetka Avenue North • Brooklyn Park, MN 55445
Phone: 800.253.0367 • Fax: 800.825.2753
©2016 Nilfisk, Inc. All rights reserved. P/N L3434C 4/16
240 Superior Boulevard • Mississauga, Ontario, Canada L5T 2L2
Phone: 800.668.8400 • Fax: 800.263.5111
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