Rotary lawn mower with 3 blades. It's operating width is 120cm, it's unladen weight is 180kg. Even the small, thus around 13HP performance having tractors can drive it. The gentle connection between the turf and the lawnmower is assured by the 4 gum wheels having construction. The selfadjusting wheels ensure the easy maneuverability, the adjustable construction allows adjusting the height of the trimming. The trimming itself is made by 3 double blades. They are spinning next to each other. These 3 double blades are interconnected by a fan belt. The advantage of this kind of connection manifests in the case of collision when the connection defend the machine from the damage with a slip. The lawnmower is connecting to the tractor with 3 point rear hitch. VIDEO