Trough Vibrators are a type of vibratory finishing machine used for mass finishing of large or heavy parts that cannot be finished in a bowl or tub-shaped machine. The process involves adding abrasive media and water or other liquid to the trough, along with the parts to be finished. The Trough Vibrators are then vibrated at high speed, causing the abrasive media to impact and rub against the parts, removing burrs, smoothing edges, and polishing surfaces.