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Karcher Scrubber Dryer B 40 W Dose Roller brush

Walk-behind scrubber drier (40 l). Configuration example with traction drive, roller brush, 51 cm working width and battery (105 Ah).

For more information please call our office on 01473 636663.

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B 40  Bp  walk-behind scrubber drier. With brush head and roller brush, 51 cm working width, maintenance-free battery (24 V, 105 Ah), variable traction drive (forward and reverse) and KIK key system for protection against incorrect operation. Extra feature: eco!efficiency mode extends battery life, tank rinsing system for automatic cleaning of the dirty water tank without splash-back, auto-fill function for convenient filling of the water tank as well as Dose cleaning agent dosing system for direct dosing from the cleaning agent container. Tip: configuration example. This machine is available with a range of different equipment and features, e.g. different batteries, cable version, without traction or with 43 cm working width.

Features and benefits

3 batteries to choose from
  • The charging curve of the built-in charger is perfectly adjusted to the various battery types.
  • For a long battery life.
Brush head with disc system
EASY Operation
  • Simple to use.
  • The basic functions are controlled with the EASY switch.
eco!efficiency mode
  • The eco!efficiency mode is extra quiet and optimal for noise-sensitive areas (e.g. hospitals or hotels).
Easy handling
  • Simple handling thanks to clear control elements with colour-coding.
  • Simplified use and shortened teach-in time.
Traction drive
  • The maximum speed can be preset.
Innovative KIK system
  • Yellow key for operators, grey key for supervisors.
  • Reduced service costs thanks to less operating error.
Practical device shape
  • The slim machine can be easily manoeuvred, even in tight spaces.

Technical data

Working width, vacuum (mm) 850
Fresh / waste water tank (l) 40 / 40
Max. area performance (m²/h) 2000
Practical area performance (m²/h) 1500
Brush rotation speed (rpm) 180
Brush contact pressure (g/cm²) 30
Frequency (Hz) 50 / 60
Voltage (V) 100 / 240
Motor rating (W) max. 1300
Traction motor (W) 130
Weight (kg) 93
Weight with battery (kg) 135
Dimensions (L x W x H) (mm) 1249 x 575 x 1145
Battery (V) 24 / 105
Battery voltage (V) 24
Battery capacity (Ah) 105
Sound level (dB(A)) 60


  • Disc brush
  • Dose
  • Battery type, maintenance-free
  • Tank-in-tank system
  • Traction motor, 130 W