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.
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.
Marble quarrying and processing
Glass and ceramics
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Founded in 1886, Bradley Pulverizer designs, manufactures and supplies air classifying and pulverizing systems for fine and semi-fine grinding of hard, friable, and abrasive materials. Bradley pendulum roller mills are widely relied upon for uninterrupted production of materials which meet the most demanding specifications for particle size distribution.
Bradley air classifiers offer instant adjustment of particle separation sizes and can be integrated into most airswept mill systems. In addition, stand-alone classifiers offer separation of coarse and fine particles simultaneously with options for efficient separation of ultra-fine particles for specialized applications featuring a hygienic surface and stainless steel construction.
Focusing on size reduction and classification, Bradley Pulverizer produces reliable, low maintenance, energy-efficient pulverizing and powder classification systems that are available worldwide.