These are also known as ball vibrators.

Move this vibrator to the source of your flow problem.

Also known as piston vibrators, these pound the sides of your bin to dislodge wet, sticky, and caked-on materials.

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.

When access to the inside of your tank is difficult, these vibrators can be installed and removed from outside of the bin for easier cleaning than bolt-on aerating vibrators.