The rotary reaper aggregated with RSM-1401 and RSM-1701 forage harvesters, and their modifications, is designed for mowing of sowed and natural grass used in stockbreeding as forage. Due to rotors high rpm – 3000 rpm – the reaper moves with a speed of up to 15km/h without damaging roots of the mowed culture, what increases efficiency and probability of good crop at next mowing. The reaper is used in all areas of plain agriculture on the fields with flattened relief.

When hitting the serious obstacles (e.g. hydrants, poles) unseen in grass, the serious protective elements placed on each rotor are saving the cutting beam from critical damages. Due to this, the cutting beam rest elements are prevented from failures. There is no necessity to disassemble and change toothed gears of the cutting beam; it is enough to replace cutting support, and the mower is ready for operation.

Thanks to special design, the knives throw the mowed mass upwards and backwards along the moving of cutting beam. Thus, when mowing high-yielder grass at high speeds, there are no obstructions in front of it, and the mowed mass is not cut twice, and the straw is of high quality.

Safety clutch installed on propeller shaft provides reliable protection in case of peak loads.