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ModelsClarke RA40 20D
Cleaning path20 in (51 cm), disk
Brush / pad size21 in (530 mm) disk brush or 20 in (508 mm) pad
Brush pressure33 / 66 lb (15 / 30 kg)
Brush speed155 rpm
Squeegee width28.3 in (72 cm)
Tank capacity18.5 gal (70 L)
Productivity at 3.7 mph32,560 sq ft/hr (3,025 m²/hr)
Productivity at 2.5 mph22,000 sq ft/hr (2,044 m²/hr)
Working speed3.7 mph (6 km/h)
Max transport speed3.7 mph (6 km/h)
Max climbing rate2%
Minimum aisle turn70.9 in (180 cm)
Brush motor0.6 hp (450 W)
Drive motor0.6 hp (400 W)
Vacuum motor0.42 hp (310 W)
Vacuum water lift39 in (9.8 kPa)
Voltage24 V
ChargerOnboard
Sound level68 dBA (±3)
IP protection classIPX4
Dimensions (L x W x H)50 x 22 x 40 in (127 x 55 x 102 cm), without squeegee
Gross weight754 lb (342 kg)
Model NumbersClarke RA40 20D OBC PH, part number 56384074

Technical specs may include optional equipment that is not included with all units.

Demo Clarke RA40 20D 20" Disk Rider Scrubber

Part Number:
ERAD56384074-99
OEM Number:
ERAD56384074-99
Availability:
Quick Ship
Brush Speed (RPM):
155
Charger Type:
On-board Available
Cleaning Path (inches):
20
Condition:
Demo
Deck Type:
Disk
Equipment Type:
Rider Scrubbers
List Price:
14,286.00
Machine Type:
Equipment
Manufacturer:
Clarke
Our Price:
8,990.00
Power Source:
Battery
Propulsion:
Rider
Shipping Designation:
Qualifies for Free/Flat Rate Shipping
Solution Tank Size (gal):
18.5
Sound Level (dBA):
68
Warranty Information:
90 Day Parts, 30 Days Labor
Price:
$14,286.00
$8,990.00/EA
37% discount
In Stock

Our Take (from the SES Sales Team)

“The RA40 20D is a micro rider: a 20-inch disk scrubber you sit on, sized for buildings where a walk-behind is wearing out your operator but a full-size rider won't fit through the doors or down the aisles. It is 22 inches wide without the squeegee and turns around in a 71-inch aisle, so it works in schools, retail stores, healthcare corridors and smaller warehouses.

Two features do most of the work. SmartFlow cuts the solution flow when the operator slows down for turns and edges, which keeps water from puddling and stretches the 18.5-gallon tank. The onboard chemical mixing system meters concentrate from its own reservoir, so you add detergent only when the floor needs it instead of mixing it into the whole tank.”

20 in
Disk cleaning path
18.5 gal
Tank capacity
32,560 sq ft/hr
Productivity at 3.7 mph
70.9 in
Minimum aisle turn
28.3 in
Squeegee width
68 dBA
Sound level

A 20 In Disk Micro Rider for Tight Buildings

The Clarke RA40 20D is a compact ride-on floor scrubber with a 20 in disk deck, a 28.3 in squeegee and an 18.5 gal tank. The operator sits down, steers with a wheel and cleans at up to 3.7 mph, which Clarke rates at up to 32,560 sq ft per hour.

It is 22 in wide without the squeegee and needs only a 70.9 in aisle to turn around, so it fits where a full-size rider cannot. SmartFlow lowers solution flow when the operator slows down, and the Chemical Mixing System blends concentrate from an onboard reservoir with clean water. Two scrub pressure levels, 33 lb and 66 lb, cover daily cleaning and tougher spots.

Condition: Demo. Inspected by SES technicians.

Clarke RA40 20D micro rider scrubbing a warehouse aisle

What you get

Compact Rider, Full-Size Features

20 in

Disk scrub deck

A single disk deck at 155 rpm, with tool-free brush and pad removal. Clarke offers 21 in (530 mm) disk brushes and 20 in (508 mm) pads for it.

SmartFlow

Solution follows speed

Solution flow drops automatically when the operator slows for turns, edges and obstacles, so less water is left behind.

CMS

Chemical Mixing System

Mixes adjustable levels of concentrate from an onboard reservoir with clean water, with a boost for heavily soiled areas.

33 / 66 lb

Two scrub pressures

Standard pressure for daily cleaning, heavy pressure for tougher spots.

Onboard

24 V with onboard charger

The charger rides with the machine, so it plugs in wherever it parks.

22 in

Narrow body

22 in wide without the squeegee and a 70.9 in minimum aisle turn for doorways, corridors and tight aisles.

SmartFlow: Less Water Left Behind on Turns and Edges

Most of the puddles a scrubber leaves happen when it slows down: at the end of an aisle, around a display or along a wall. SmartFlow cuts the solution flow automatically as the RA40 slows, and Clarke says it can raise productivity by up to 50% per tank. Less water on the floor also means less slip risk and less chemical wasted.

Features

Built for Easy Daily Use

  • ✓Steering wheel control panel with one-touch buttons and a multifunction digital display
  • ✓Low center of gravity and Safe-T-Steering to help prevent tipping
  • ✓Low step-on design and a wide operator seat for easy on and off
  • ✓Water-level indicator visible from the operator’s seat
  • ✓Squeegee hangs on the tank for transport through doorways and for tank drying
  • ✓Recovery tank tilts fully for access to the battery compartment and detergent container
  • ✓Lift-off lid for cleaning the tank and debris catcher, plus an easy-flow drain hose
  • ✓Rotomolded body that won’t rust or corrode
Clarke RA40 20D steering wheel control panel and display

Specifications

Clarke RA40 20D at a Glance

Spec RA40 20D with onboard charger
Cleaning path 20 in (51 cm), disk
Squeegee width 28.3 in (72 cm)
Tank capacity 18.5 gal (70 L)
Brush speed 155 rpm
Brush pressure 33 / 66 lb (15 / 30 kg)
Productivity at 3.7 mph 32,560 sq ft/hr (3,025 m²/hr)
Voltage 24 V
Vacuum water lift 39 in (9.8 kPa)
Gross weight 754 lb (342 kg)
Model numbers Clarke 56384074 (RA40 20D OBC PH)
More SpecificationsTap to view ▾
Spec RA40 20D with onboard charger
Brush motor 0.6 hp (450 W)
Drive motor 0.6 hp (400 W)
Vacuum motor 0.42 hp (310 W)
Productivity at 2.5 mph 22,000 sq ft/hr (2,044 m²/hr)
Working speed 3.7 mph (6 km/h)
Max transport speed 3.7 mph (6 km/h)
Max climbing rate 2%
Minimum aisle turn 70.9 in (180 cm)
Length x width x height 50 x 22 x 40 in (127 x 55 x 102 cm), without squeegee
Charger Onboard
Sound level 68 dBA (±3)
IP protection class IPX4

Specifications from Clarke and Nilfisk. Technical specs may include optional equipment that is not included with all units.

Demo Unit Details

This is a demo unit, inspected by SES technicians before it ships. It comes with its batteries, onboard charger and pad holder. SES covers it for 90 days parts and 30 days labor.
QuestionsClarke RA40 20D: Common QuestionsTap to view ▾

Will the RA40 20D fit through my doors and aisles?

The machine is 22 in wide without the squeegee and 50 in long, the squeegee is 28.3 in wide, and Clarke lists a 70.9 in minimum aisle for a turnaround. The squeegee also hangs on the tank for moving through doorways. Measure your tightest doorway and aisle turn before you order.

Is a micro rider faster than a walk-behind?

Clarke rates the RA40 20D at up to 32,560 sq ft per hour at its 3.7 mph working speed, and 22,000 sq ft per hour at 2.5 mph. The bigger gain for most crews is that the operator sits and steers instead of walking the whole floor.

Can it handle ramps?

Clarke lists a maximum climbing rate of 2%, so the RA40 is meant for level floors. If your route includes ramps or sloped loading areas, tell us about them before you choose a machine.

How does the Chemical Mixing System work?

Concentrate sits in its own onboard reservoir and the machine mixes it with clean water from the 18.5 gal tank at an adjustable level. You can run lighter on routine cleaning and give heavily soiled areas a boost, without mixing detergent into the whole tank.

Does it come with a charger?

Yes. This unit has a 24 V system with an onboard charger, so there is no separate charging station to buy or move.

What warranty comes with a demo unit?

SES covers this demo unit for 90 days parts and 30 days labor, and our technicians inspect it before it ships. See service and warranty for details, or look at financing options.

Not Sure the RA40 Fits Your Building?

Call 800-440-6723 and tell us about the floor, the building and the shift. We will tell you if this is the right machine. Service and warranty help

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