Witte Company, Inc. (The) Washington, NJ, USA. Vibrating Screener. Witte Vibrating Screeners gently and efficiently screen dry, granular, free-flowing and non-free flowing products while protecting product integrity. Witte Features: 10, 23, 35, 47 inch standard widths Dust-tight covers featuring the Witte Clamp Sanitary stainless steel designs ...