Aqua Air

B90 R Adv DOSE

Compact, high productivity ride-on scrubber dryer with advanced features.


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 retro-fitting 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.

The extra short and sleek design makes this machine extremely agile and easy to manoeuvre – despite the large water capacity. 90° steering allows on-the-spot turning. A low centre of gravity guarantees good wheel grip.

The basic functions are controlled with the EASY switch. Operating hours are displayed. Roller brushes save water and detergent.

Large compartment for large battery capacity. Pack models include maintenance-free gel batteries. Two turbine power settings - save energy in the WHISPER setting.

    Working width, brush (mm)550 - 750
    Working width, vacuum (mm)850 - 940
    Fresh / waste water tank (l)90 / 90
    Theoretical area performance (m²/h)     4500
    Practical area performance (m²/h)3375
    Brush contact pressure (g/cm²/kg)20 - 315 / 28 - 35
    BatteryBattery (V/Ah)24 / 170
    Traction motor (W)600
    Waste Container (l)5 / 7
    Sound level (dB(A))69
    Weight (with accessories) (kg)275
    Dimensions (L x W x H) (mm)1450 x 720 x 1180

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