Filtration
FRI self-cleaning internal rotary filter
The FRI Internal Rotary Filter is designed to filter large volumes of dust-laden air containing textile fibres and/or other waste materials.
The unit features a modular structure made of sheet metal and steel tubular sections, housing a cylindrical filter media. Dust-laden air enters through the inlet and passes through the filter media from the inside to the outside, where dust and waste particles are retained, delivering perfectly clean air.
Depending on the type of material being processed and the airflow rate, the filter media can be made of felt, synthetic fur or other technical materials. A rotating suction nozzle system continuously cleans the filter surface by rotating around the central shaft while moving horizontally across the full width of the filter media. The combined rotary and translational movement ensures complete cleaning of the entire filtering surface, maintaining high filtration efficiency and extending the service life of the filter media.
Thanks to its efficiency, the filter can also operate without an enclosing housing, as the discharged air is completely clean and free from impurities. A safety system continuously monitors the correct operation of the internal rotating assembly, while, for special applications, an optional air blowing system keeps the moving mechanisms clean, ensuring maximum operating reliability.
The FRI Internal Rotary Filter is available in three different diameters and several modular sizes for each diameter, allowing the system to be precisely matched to the required airflow capacity and the specific production process.
Installed power: 0.37 kW
Type FRI 15-15: treated air from 15,000 to 28,000 m³/h
Type FRI 15-30: treated air from 30,000 to 56,000 m³/h
Type FRI 15-45: treated air from 45,000 to 84,000 m³/h
Type FRI 20-15: treated air from 20,000 to 37,000 m³/h
Type FRI 20-30: treated air from 40,000 to 72,000 m³/h
Type FRI 20-45: treated air from 60,000 to 110,000 m³/h
Type FRI 25-45: treated air from 75,000 to 135,000 m³/h
Type FRI 25-60: treated air from 100,000 to 180,000 m³/h
Type FRI 25-75: treated air from 125,000 to 200,000 m³/h
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