Disk harrow (thickener), Zaporizhia region.

Disk harrows are one of of the most common agricultural tools used for tillage. It can be used to perform the following agrotechnical operations:

carrying out loosening and mixing of the upper layer of the earth (flaking) with partial or complete turnover of the layer;
cutting, grinding and crushing of weeds with the subsequent laying of the remains;
soil mulching;
grinding of the soil fraction;
soil aeration;
provoking the growth of weeds, for the possibility of their complete removal in the necessary period;
In some cases, they allow pre-sowing soil preparation;
The use of disc harrows makes it possible to deal with weeds and plant residues of previous crops, to grind the soil fraction. The main task of peeling is precisely the destruction of pests and the creation of conditions for the fastest germination of weed seeds. In addition, there is a "sealing of moisture" in the lower layers of the soil.

Disc harrows: advantages and principle of use
Thanks to the movement of the tractor, which pulls the disc harrow, the rotating discs sink into the soil to a pre-set depth. At the same time, the discs cut off part of the soil, which then falls on the convex part of the harrow disc. From it, the earth falls to the side, thereby achieving crushing of the soil layer, as well as its wrapping and partial mixing. Thanks to the correctly selected angle of attack (at which angle the disc enters the ground), it is possible to improve the grinding of the soil and change the depth of the soil layer cultivation. In addition, a special ballast can be used to increase the depth of the disc's immersion in the ground.

Benefits of using:(//tractor-service.com)
versatility - the ability to use the unit for cultivating different types of land - light, medium, heavy soil. The main thing is to choose the right type of disk - for each type of work, a different shape with different types of cutouts is suitable - with round cutouts of different depths, discs with asymmetrical cutouts for chopping shrubs and thick-stemmed plants, with a fluted blade, etc. At the same time, it is worth noting that replacing disks will not require great efforts and the involvement of special equipment, it can be performed by one or two people;
the possibility of processing in very wet conditions (up to 40%);
the use of a disc harrow does not require as much effort from the traction equipment as it does when using a plow. When working with disc harrows on a spring stand and an aggressive disc with a fluted blade (example Super Sharp from Bellota), you can
ease of maintenance - preparing the unit for work will take no more than 10 minutes, there is no need to make complex settings and adjustments. The simplicity of the design, the complete absence of complex mechanisms that require regular maintenance, ensures long-term operation and maintainability - any broken or worn disc or hub can be quickly replaced;
setting the depth of soil cultivation (up to 20 cm) makes it possible to use the same harrow for cultivation of different types of land, as well as to prepare the soil layer for planting different agricultural crops.
Separately, it should be notedhuscher – a special type of harrow used for shallow soil cultivation, with preservation of moisture and without complete turnover of the soil layer. They make it possible to turn over the surface layer to a depth of no more than 8 cm, simultaneously destroying weeds and laying plant residues. At the same time, they have the opportunity to prepare a seed bed in 1-2 passes, sufficient for planting winter crops immediately without cultivation.

Lightdisc harrow 2.6m (Crusher)

-Working organs of the harrow
-Discs (disc diameter 510mm)
-Diameter of the rink. 410mm (roller to choose from)
- SKF closed type bearing (Sweden)
-The thickness of the frame is 5 mm.
-Working grip 2.5m
-Weight 892kg