The CR55W Railcar Shaker from The Arnold Company is a high frequency, silent vibrator. This Vibrator is standard at most major railcar unloading facilities. The vibrator requires 50 CFM at 80 PSI with a 3/4" air line to unload its full potential.
Its High Frequency makes this Shaker a favorite to unload grain and other fine granular products.
Model CR55W features a two hand grip for ease of installation and removal from railcars.