Mounted rotary mower-shredder "PALESSE CH15" with coverage width of 1,5 m consumes power of 55 h.p. Light and maneuverable mower-shredder prepares for 1 hour at least 18 tones of milled mass, providing the minimum self cost of preparing grass for green forage. Besides grass cutting, the mower can be used for cutting of potato foliage. Outburst accelerator and pivoting silage duct are another important advantages of the machine. On "PALESSE CH15" rotor are floated L-shaped knives. They do not damage plant roots, reducing pollution of forage and increasing the yield capacity of the following mowing. The possibility to chain tractor, mower and trailer gives an opportunity to reduce the number of vehicles for masses transportation.