NFSZ Dust Collector

NFSZ features and benefits

  • Handles air volumes from 1 500 – 65 000 m³ / h (883 – 38 000 CFM)
  • Wide range of rotary valves/screw conveyors for material discharge
  • ATEX-certified
  • Compact design
  • Suitable for handling large volumes of air with heavy material contamination
  • Can be mounted on the ground or roof
  • Explosion relief upwards or sideways
  • Powerful online cleaning with efficient regeneration fans
  • Easy to install on site and extend when required
  • Low energy consumption


The NFSZ, available from Envirox, is best described by its full name – the NFSZ3000 baghouse dust collector with rotary valve or screw conveyor. It is designed to solve challenges around the extraction of dust and particles for medium air volumes. ATEX-certified for St1 and St2 dust with a Kst value up to 300 bar m/s, it has the ability to handle large material concentrations and is suitable for outdoor use.

Made of galvanised steel sheets with telescopic support, the NFSZ modular dust collector is available in two widths: type E 1 200 mm (47") and type J 2 400 mm (94"). Each module of the filter design is fitted with a combined inspection and explosion relief door, and filter cleaning is conducted with regeneration fans. In addition, the filter is fitted with the unique patented antistatic polyester SUPERBAG filter bag.

Ideal for wood waste, extraction of dust and particles, and combustible dust, the medium- and large-sized particles are separated in the filter hopper and the inlet section – which is optional, and the air is then distributed to the filter bags. The collected material is discharged via the rotary valve, which is used for non-pressurised material discharge to a silo, container or separate transport system. The filter can be supplied either for continuous operation or with a break, meaning the filter bags can be cleaned at four hourly intervals.

Contact Envirox today for a dust filtration system for your application.