RZB-7 rotary tooth harrow, 5, Chernihiv region.

A universal unit that is used both in early pre-sowing tillage - in the spring, and in late autumn afterharvest.
The working sections of this unit are chain shafts located on the wings of the unit. The rotation of the shafts occurs with the help of bearing units on the edges. The working organs are hedgehogs, which have a diameter of about 40 cm and a high resource potential.

Based on the experience and practice of using this unit, the main advantages and tasks are:

I. During spring tillage, it is used for:
a) closing moisture;
b) preparation of the surface for sowing (loosens the surface, loosens the top layer of the soil);
c) prevents the formation of a crust and prevents further cracking of the surface;
d) thanks to the spikes, the upper fertile soil layer is clogged to a depth of 5-7 cm, which in the future serves as effective growth for young plants;
e) the hedgehogs of the rotary tooth harrow effectively comb all the weeds in the field, and its special design allows it not to get clogged with plant residues;
f) the unit allows you to perfectly level the surface of the field and prepare it for sowing.

II. During autumn tillage:
a) the toothing machine is used after a deep loosener or disk harrow, which will allow you to break a large lump into small fractions and eliminate the main irregularities;
b) Rotavators can be used after harvesting rapeseed, sunflower orcorn for the purpose of grinding and uniform distribution of crop residues.(//tractor-service.com)

Technical characteristics:
Name Unit of measurement rotarytoothed harrow "RDH-7.5"
Hinged type
Spike thickness mm 20
The number of sections is 6
Aggregated with tractors class 1,4
The width of capture m 7.5
Productivity ha / h 8 - 10
Processing depth cm 2 - 10
Destruction of the soil crust% 98
Destruction of weeds% 97
Working speed km / h 10 - 12
Transport speed km / h 15

It is optionally possible to install a container for applying fertilizers, which will allow you to effectively and quickly apply mineral dry fertilizers and thereby put them into the soil (mix them).