Karcher B 90 R Scrubber Dryer


The B 90 R range provides simple, highly productive scrubbing and drying in a compact ride-on package.

The B 90 R features Kärcher’s interchangeable brush head system, making it possible to purchase one machine and choose between roller or disc brushes in different working widths, with the option of retrofitting a different brush head to better suit another application. The B 90 R is available with a brush disc or roller head in 65cm width, or optional 75cm width.

As well as four head options, the machine is available in three formats – the Classic model offering fixed settings for ease of use, the Advanced model featuring variable suction, brush speed and contact pressure, and the Advanced Dose model featuring Kärcher’s Dose detergent metering system



Weight 272 kg
Dimensions 1450 × 800 × 1200 cm

Machine Key Points

  • Highly manoeuvrable
    • Thanks to its very short and narrow construction style, the machine is very agile and easy to manoeuver despite large water volumes. The 90° steering system allows you to turn on the spot. A low centre of gravity ensures excellent road adherence.
  • Easy operation
    • The basic functions are easily controlled using the EASY switch. Operating hours can be viewed on the display. Additionally, the roller brushes ensure that water and therefore also cleaning agent are saved.
  • Long running time
    • Large compartment for a large battery capacity. Maintenance-free gel batteries in the pack variants.
  • Quick replacement
    • If required, the brush head can be replaced quickly with no need for tools.
    • The rollers on the R head can be changed in next to no time.
    • The brushes or pad drive boards on the D head are discarded using the foot pedal.
  • Traction drive with speeds of up to 6 km/h
    • For negotiating steeper gradients. (With solenoid brake)
  • Straight or curved squeegee
    • For optimal suction on every floor. (Please order separately).
  • Large battery compartment
    • To allow the optional use of larger batteries – for even more service.
  • Good climbing ability and ground clearance
    • For easy transport and loading.
  • Corrosion-resistant flat pleated filter
    • For protecting the turbine against premature damage.
  • Short and sleek design
    • Extremely agile and easy to manoeuver (despite its large capacity).

Machine Specifications

Working width of brushes (mm) 550 – 750
Working width, vacuuming (mm) 850 – 940
Fresh/dirty water tank (l) 90 / 90
Theoretical area performance (m²/h) 4500
Practical area performance (m²/h) 2475
Brush contact pressure (g/cm²/kg) 20 – 315 / 28 – 35
Battery (V/Ah) 24 / 170
Battery runtime (h) max. 2,5
Rated input power (W) 2200
Traction motor (W) 600
Waste container (l) 5 / 7
Sound pressure level (dB(A)) 69
Drive type Battery
Weight (with accessories) (kg) 272
Dimensions (L × W × H) (mm) 1450 x 800 x 1200


  • Powerful traction drive
  • Battery and built-in charger included
  • Automatic water stop
  • Tin
  • 2-tank system