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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In 1914 Bradley Pulverizer established their own manufacturing facilities in Allentown, Pennsylvania, which was then the center of the cement manufacturing industry of the United States. At about the same time, Bradley Pulverizer also established sales and engineering offices in Europe.
Today, Bradley Pulverizer remains headquartered at its Allentown location with a facility in the United Kingdom. Our continued innovation and dedication to our customers continues to be a guiding force for Bradley Pulverizer for over 130 years.