The air stream enters the separator tangentially at the top, creating a rotating airflow (vortex). By centrifugal force the dust or liquid particles are moved along the outside wall where they are separated and, in spiralmotion, slide into a collection device (plastic bag). It is also possible to mount an LTG dust compactor below the separator. In the lower part of the housing, the air stream is forced to reverse and flows upwards through the immersion tube.
ZSBs have a higher separation capacity and a pressure loss of 1 200 to 3 000 Pa, with air volume of 100 to 1 600 m3/h and dust quantities of up to 100 kg/h.
ZSBs are optionally available with a return air head which reduces the pressure loss in comparison with the standard version.