Golf/Sports Turf/Municipal. Limited Offer! Available to Hire or Buy. The operating width is 45cm (18 inches) with an aeration depth adjustable to 13cm (5″) The forward speed is 45 m / min (49 yds) giving up to 1200 sq yds / hour coverage. Reliable, heavy duty and easy to use for the aeration of all types of ground -The Groundsman 345HD is the ideal tool. Any trial at our premises.