Vibra VF-4 Batch Bowl Style Vibratory Finishing Machine. Vibratory bowl is made of heavy duty reinforced steel, with all continuous welded structure. The bowl is shot peened after welding to prevent fatigue. The design includes a low rise, spiral concept for unrestricted flow of parts during their processing. Drainage of effluent and contaminants from the machine drain by means of two replaceable drain plugs with tapered drain holes. The Vibra VF-4 comes complete with: Control Panel, Compound System, Separating Screen Deck, Unload Ramp and Zerk Lubrication. Working Capacity 4 cu.ft. , Channel Width 11″, Bowl Diameter 50″.