hammer arrangements, and are all supported between durable pillow block bearings. These proprietary design factors combine to provide a controlled, uniform granular grind with the benefits of easy maintenance. Hammer Mills AVAILABLE SIZES CAPACITIES Model Screen Area Sq inches Avg. hp RPM G5 440 5 15 1800 3600 G6 540 15 30 1800 3600 G7 790 40 60 1800 3600