Hogor You can feed 20,000 to 60,000 pounds of material per hour through the Hogor'slarge feed opening. It can handle both soft and hard materials, providing the smallest, most uniform particle sizes averaging 1/2". Optional 2", 3" or 4" diameter screens cut long, stringy material.GrindorThe high-speed, high-capacity attrition type Dupps Grindor features a side entry housing for less windage. You can reduce dry material to small, uniform pieces at an average rate of 100 pounds or more per horsepower per hour, and moist material at 60 pounds per horsepower per hour.