Pneumatic ball vibrators of the series NCB can be used wherever bulk materials need to be moved. They serve in the emptying of bunkers, for preventing bridging, rat-holing and adhesion. When used to drive chutes, sieves and vibrating tables, they ensure that material flow is maintained. The special feature is the simple construction.
The rotary vibration is created by the high centrifugal force produced by a circulating steel ball, which runs on hardened, polished steel braces.
The frequency, and hence the centrifugal force, can be continuously regulated via the operating pressure.