From the manufacturer!!! DISK UNITS type "DAN" - 1.8, 2.1, 2.5, 2.8, 3.1, 3.5 and others, Kyiv region.

REVIEW MANUFACTURER!!!!!
Disk harrow DAN harrow (aggregate) for resource-saving soil treatment to a depth of 4 to 18 cm.
They carry out the basic resource-saving soil treatment to a depth of 4 to 18 cm. They ensure the uniform distribution of organic fertilizers and plant residues throughout the depth of the treated soil layer, creating an optimal structure for plant growth, increasing the absorption of moisture by the soil and reducing erosion, crushing clods, rolling the top layer of soil to preserve moisture and leveling the topography of the field. Aggregates are used for minimal, preservative and traditional tillage of the soil.
DAN has a number of constructive advantages over analogues, namely:
1. High-quality bearings from the Lutsk Bearing Plant, which is part of the SKF corporation, are used in the bearing unit, as well as a modern cassette seal that provides 9,600 hectares of work on the DAN unit without disassembling the bearing unit!!!
2. The reduced pitch of the discs and their optimal placement parameters provide: high-quality cultivation of the soil with an even bed, less wear of the discs than in analogs and a high resource of aggregates.
3. Two holes are provided for aggregating with a tractor by connecting the central drive, which ensures aggregating with tractors of different models without modifying the aggregate.
4. Brackets for fixing and adjusting the position of the roller have an integrated design that reduces the load on the rear beam of the main frame of the unit and increases reliability.
The distance between theroller anddiscs has been increased, which improves the distribution of plant residues on the field, leveling of the area and excludes clogging of the roller on wet soils.(//tractor-service.com)
5. Rolling rollers have an increased radius and a smaller number of working elements (8 instead of 10), which prevents the roller from clogging.
6. In the design of the roller, double-row bearings are used in the support, which facilitates their maintenance and provides 5 times more !!! resource compared to bearing 31-UCF-208.
7. The use of paint and anti-corrosion soil ensures the resistance of the unit parts to aggressive operating conditions.
8. Units are attached to the tractor on a standard three-point suspension system. Cultivation depth is set by adjusting the position of the roller and the tractor hinged system.
9. Tillage of soil with a DAN harrow has the following agronomic advantages:
1. The transformation of plant residues into nutrients for plants is accelerated due to their grinding and mixing in the upper soil layer.
2. Leveling the topography of the soil allows you to improve the quality of sowing and the speed of harvesting crops, as well as to minimize equipment breakdowns and preserve the health of the operators.
3. Moisture is stored in the soil due to the presence of plant residues, the disruption of capillaries and the rolling of the upper layer of the soil.
4. Soil microorganisms are always in natural conditions and actively improve the biochemical state of the soil, increase the amount of humus - the key to high soil fertility. of activity