The side-channel suction unit, made of aluminium casting is fitted at the base of the chassis, giving more stability to the machine. The impeller is directly driven, thus avoiding any transmission and maintenance. The special diffuser decreases the speed of the exhaust air to less than 1m/s, in compliance with European regulations EN 60335-2-69. Moreover, the diffuser provides an optimum noise level of 69 dB (A). The vacuum gauge monitors filtration efficiency. The vac is fitted with a external manual filter shaker, located on the side of the machine, easy to use and ergonomic. The greater filter surface is obtained by means of a polyester star filter, 1,95 m² as filtering surface, "L" class as standard.
The material is collected inside a 100 litre painted steel container provided with castors, easy to remove thanks to a handy release system.
The machine frame is made of heavy duty tubular and plate steel, painted with epoxy powders to ensure robustness and is provided with a tool basket and cable holder. The tangential inlet allows a better cyclonic effect in presence of fine dusts. For better protection of the filter chamber in presence of abrasive materials, a reinforcement shield is fitted as standard on all the models.
The manoeuvrability of the vacuum is granted by two fixed wheels (Ø 200 mm) - and by two swivel wheels - (Ø 150 mm) – provided with brakes and fitted with bearings.
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