Disc mowers are prefered to cut alfaalfa, clover and similar grasses. There are different models with 5, 6, 7 and 8 discs. 5 and 6 disc machines are mounted type models. 7 and 8 disc machines are trailed type models. Conditioner is optional with mounted models and standard with trailed models. Drum mowers rotation movement is harmful for the root of the crops. Disc mowers do not harm the crops as drum mowers. In the disc mowers there are oval discs located on the cutter-bar and these discs rotate with 3000 rpm. This rotation creates an air turbulence which uprights the leaned grass.
Disc harrow is a compact disc tillage machine. The two rows of offset discs to work the soil are arranged for mixing and breaking of stubble in a single pass. In this tillage type, the disc move is changed with the working depth that is in turn changed by operating the hydraulic coupling height on the tractor: this changes the pressure on the disc, the disc angle to the tillage direction, this also enables a more aggressive cultivation of the discs into the soil. The overall machine is compact
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