Here's a low cost answer to breaking up hard materials during primary size reduction.
The Prehogor's 17 welded, hard-surfaced rotor teeth and two anvil assemblies break materials into approximately 1" to 2" pieces. The first anvil assembly provides the initial breaking action, the second assures uniform sizing.
Hogor
You can feed 20,000 to 60,000 pounds of material per hour through the Hogor's large 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.
Grindor
The 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.
