The new RA-21 Reciprocating Aerator by Classen addresses many of the pain points associated with reciprocating aerators including limited aeration swath, difficulty of use and maintenance and the high price tag often associated with reciprocating tine machines. Offers a wide 21-in. aeration swath for exceptional coverage in a single pass made possible through an 8 tine bank that penetrates at a depth up to 2.75-in. The core tines reciprocate at 450 revolutions per minute and cover up to 26,000 sq. ft. per hour. Pneumatic wheels allow for better flotation and easier maneuverability.