International Processing Trade Fair for Powder, Bulk Solids, Fluids and Liquids

26 - 28 September 2023 // Nuremberg, Germany

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Exhibitors & Products POWTECH 2023
Zoom Image LOGO_Vertical Blade Classifiers (VBC)

Vertical Blade Classifiers (VBC)

LOGO_Vertical Blade Classifiers (VBC)

Vertical Blade Classifiers (VBC)

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Vertical Blade Classifiers (VBC)

How It Works

This dynamic classifying technology utilizes vertical oriented blades and a separator rotor to create a vortex, spinning the passing air and throwing coarse particles out to the sides of the mill, where they fall back into the grinding zone. Desired fine particles are carried out through the separator rotor,  and up to the cyclone or bag filter collector.

The separator rotor speed can be altered using an inverter to adjust the size of the fine particles delivered to the cyclone.

Performance Features

While the VBC Classifier was developed for use in Bradley’s own mill circuits, it is readily adaptable to any air-swept system.  It has been successfully incorporated into many other  pendulum mills, ball mills, table and roller mills, and air classifier systems.  The VBC’s simple, rugged design ensures:

  • Clean cuts with no air purge or complex labyrinths
  • Size control simply by adjusting rotor speed
  • Simplified design – No internal vanes or dampers
  • Simple maintenance – blade change on-site with no re-balancing
  • Efficient stripping of fines, to maximize performance.
  • Reliable and consistent operation
  • Particle top size cuts of up to 250 microns

Bradley provides technical support, with full spares and service back-up to ensure continuous high performance. The VBC Classifier technology is also utilized in the Bradley Windsifter, a stand-alone air classifier designed to separate coarse and fine particles simultaneously.

Uses of Bradley Vertical Blade Classifiers

Bradley VBC Classifiers are a versatile technology and have been used in various industries with fine grinding applications. Bradley VBC Classifiers are running successfully in many countries around the world.

  • Oil industry
  • Fertilizer industry
  • Mining industries
  • Power Generation
  • Paint manufacture
  • Cement industry
  • Marble quarrying and processing
  • Glass and ceramics

POWTECH offers concrete solutions for packaging-intensive industries. Industry guide


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