The Dahle 20390 High Capacity Shredder supports the high-volume shredding needs of busy offices and departments. It features a powerful chain driven motor, precision milled cutting cylinders, and automatic jam protection to eliminate frustration. The Dahle 20390 has a 16″ feed opening and can shred up to 55/60 sheets of paper at a time. This machine is driven by a powerful 2/2 horsepower motor and is designed to shred between 12,000 and 28,000 sheets of paper per day with a capacity to hold 50 gallons of shredded confidential waste.