These vibrators attach more quickly than other vibrators by generating a vacuum instead of bolting or welding, so you can place them at the source of the blockage and quickly move them between bins. They're often used to dislodge sticky, caked-on materials from trailers, railcars, and hoppers. Bin wall thickness determines the force required to move the material in the bin. To select a vibrator strong enough for your application, find your bin's wall thickness in the table.