SCHENK "ACCURATE" VIBRATORY FEEDER, "SOLIDS FLOW," 4000 SERIES, ALL STAINLESS STEEL CONTACTS, 6" WIDE VIBRATORY FEEDER PAN, COMPLETE WITH 1 CU. FT. FEED HOPPER, ELECTROMAGNETIC DRIVE, MOUNTING BRACKETS, ETC. THIS DESIGN PRODUCES CONTINUOUS, UNITERRUPTED MASS FLOW FROM A BIN W/O THE USE OF ANY FLOW AID DEVICES. WHEN MATERIAL FLOWS IN MASS FLOW, ALL THE MATERIAL MOVES WHENEVER ANY IS WITHDRAWN. UNIT IS UNUSED AND STILL IN ORIGINAL CRATE.