Search: Portable Soil Screener. Gone are the days of hand sifting soil and loam screentitan Used 1997 KOLBERG Model 271B Portable Screening Plant, SN: 251-271B-3040-97, 2,811 hours, powered by a John Deere Diesel engine (new engine with less than 500 hours), feed hopper with tilting grizzly bars, 30" X 40' conveyor transfer belt, 4' X 10' Double Deck Incline Vibrating Screen with directional