Roller brushes can provide up to seven times greater contact pressure and faster rotational speeds than can be achieved with disc brushes. The built-in sweeping function negates heavily soiled floors having to be swept first in order to avoid damaging the floor or blocking the suction channel. The Kärcher BR 450 was highly popular, especially among operators in industry; for the first time it was possible to select the appropriate technology depending on floor texture and degree of soiling.
FROM THE GYM TO THE RESTAURANT? SCRUBBER DRIERS FIND NEW
APPLICATIONS. Large, unobstructed areas have always been easy to clean with scrubber driers. Models for small, heavily-furnished areas place higher demands on machine development. The main focus here is not necessarily speed, as a good cleaning operative can clean up to 500m2
thoroughness of the clean and removal of the dirty water provide superior quality results over manual methods.
In the mid-1990’s, Kärcher launched what was then the world's smallest floor cleaning machine. The BS 350 worked with a cleaning fleece instead of roller brushes or disc, while the cleaning and suction unit was operated with an electric motor making the machine very compact and manoeuvrable.
The demand for ever smaller machines was subsequently met by the design of a self-supporting chassis, fresh and dirty water tanks and a compartment for turbine and batteries made from a single plastic part.
56 | SCRUBBER DRYERS
Roller brushes, irrespective of the floor
texture, deliver improved scrubbing and polishing performance and therefore a more uniform result, even on heavily soiled floors.
Meanwhile the advent of solutions for areas as small as 20m2
made it possible to clean washrooms, salesrooms /h with a mop; the
and seating areas by machine for the first time. Most recently, innovative steering concepts that allow the brush head to be controlled directly via a steering wheel provide high manoeuvrability even for heavily-furnished areas, and the use of Li-ion batteries provides a significant weight reduction, contributing greatly to convenient operation for today’s operators.
MORE FUNCTION, LESS INVESTMENT?
TRIUMPH OF MODULAR STRATEGIES. Increasing cost pressures and higher customer demands have affected all sectors – including floor cleaning. Faced with a demand for a wider variety of models hand-in-hand with the need for low investment costs, Kärcher knew a change was required; and the platform strategy was born. The idea of using as few parts as possible in order to considerably reduce development and production costs has been successfully employed in Kärcher R&D since 2000.
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