The suction is provided by a suction unit of the side channel blower type with direct oupling between the fan and the motor shaft and no transmission system. It is thus maintenance free, very silent and fit for round-the-clock- 24 hours duty. A safety switch cuts off the motor in case of over load current. A vacuum indicator enables constant checking of the section performance and detecting possible clogging of the filter.
The filter is placed and protected inside the steel filter chamber; ; the polyester star filter provides a filter surface of 2 to 4.9 m2, and high filtration efficiency. A manual filter shaker enables the user to clean the filter efficiently, by a vertical shaking movement, so as to detach most of the dust and maintain the filter clean, in order to increase its life and maintain the suction performance of the machine. The aluminium die-cast suction inlet, placed below the filter, makes it possible to vacuum at the same time dust, solid and liquid material (the latter only within the capacity of the container), with no need to change or take out the filter.
The vacuumed material is placed inside a drop-down bin mounted on wheels, which makes it possible to dispose easily and safely of the sucked material, if need be collecting it directly into a plastic bag. The vacuum is mounted on a sturdy steel chassis with two pivoting wheels, one of which with brakes; all metal parts of the vacuum are epoxy painted.