Motorised sweepers
Vacuum sweepers are suitable for surface areas of 2,000 to 6,000sqm. Here is another specific example. The type concerned is available with a petrol engine and, for internal use, a battery-powered electric motor. The drive concept has practical advantages: smoothly controlled speed, forward and reverse drive and front-wheel steering making manoeuvring easy. The instruments are mainly integrated in the guide bar and the functions can be monitored on the central control panel.
The suction fan picks up the dirt pa
rticles that are moved upwards by the brush and channelled into the waste container. Two flat-fold filters then retain fine dust. They can be mechanically vibrated in order to achieve a longer service life. If damp dirt is swept up, the fan can be switched off so as not to clog up the filters. The waste container can hold 50 litres; thanks to the push handle and transport wheels, it can be easily detached from the chassis and emptied into the rubbish container.
Ride-on machines are designed to meet the highest capacity requirements. In addition to gigantic versions on an HGV chassis, there are also compact versions – large-dimensioned sweeper vacuums with a functional driver’s cab.
For example, a model is offered with a working width of 70 cm (without side brushes) which can cover an area of 7,200 m2 an hour. Other capacity-related information: the waste container holds 70 litres, which is distributed into three container inserts for easy disposal. The drive unit can be a petrol, diesel or LPG engine, or a DC motor. All functional parts are safely stored under the plastic bonnet and are easy to access for servicing. A welded steel frame acts as a robust bumper and therefore helps to extend the machine’s service life.
David Wickel
Public Relations-Environmental Matters
Alfred Kärcher GmbH & Co. KG, Germany
