The Core Aerator is designed to allow better air and water circulation in grass surfaces, such as lawns, sports fields, municipal parks and golf courses. The Core Aerator uses case hardened closed spoons bolted on rotor flanges that are spaced 16.5 cm between each other. These spoons can remove up to a 7.5 cm plug. This design will ensure an even aeration across the working width of the machine. They work well on large lawns and high-traffic areas such as school grounds, municipal parks and sports fields. Eight spoons per hub allow you to penetrate heavy thatch and tough soils to break up soil compaction and revitalize lawns. Available options include special steel solid spikes instead of the hollow spoons and weight tanks to increase the down pressure of the spoons.