The mechanical-suction system features an array of impressive characteristics.
One of the main characteristics is that it can sweep cities without disturbing the peace.
The average level of sound emitted by a suction sweeper is around 75 dbA, a level of sound emission which causes a sensation of extreme stress. This basically comes down to two reasons: low suction flow and the engine.
Noise reduction through sweeper suction flow
The suction turbine is usually the biggest source of noise on a sweeper. The greater the amount of air which leaves the turbine, the louder the noise: the greater the amount of air displaced by the turbine, the louder the noise produced.
In a Dulevo mechanical-suction sweeper, only a small quantity of air is required for excellent cleaning results, as it is only used to retain particles raised into the atmosphere. This enables the Dulevo mechanical-suction system to maintain extremely low sound emission levels.
Reduction of noise produced by sweeper engine
The second cause of noise generated by a sweeper is the engine. The faster an engine runs, the higher the sound emitted. Said emissions become even higher if the sweeper is fitted with a second engine.
Dulevo mechanical-suction sweepers feature a much more efficient and productive collection system, even with low engine power.
Methane-powered engines: further noise reduction
Dulevo mechanical-suction sweepers are already characterised by very low emission levels in the Diesel version, and are even more silent in the methane-powered version. Two additional cylinders, cycle EIGHT and low running speeds make the Dulevo methane-powered sweeper the most silent machine on the market, for industrial and urban use.
Reduced noise levels are not only an advantage for people around the sweeper, but also for those who use them for work. Drivers can now work in comfortable, clean and silent conditions.