Cultivator of 8 meters with rollers, Dnepropetrovsk region.

Trailed pre-sowing cultivator processed KPPO-8
The main purpose of the pre-sowing tillage cultivator is the main and pre-sowing cultivation of the soil with a moderate amount of plant residues.

One pass of the cultivator provides:
Grinding and mixing plant residues with soil.
100% destruction of weeds.
Continuous cultivation to a strictly specified depth.
Leveling the soil, breaking up clods and combing out the cut weeds with spring teeth.
Crushing, leveling and compaction of soil with ribbed rollers.
The above operations make it possible to obtain optimal conditions for subsequent sowing.
(//tractor-service.com)
The above operations make it possible to obtain optimal conditions for subsequent sowing. The design of the cultivator is a unit consisting of a central frame - the cultivator section, on which complete paw working bodies are installed, a rear battery of 2-row spring-tooth harrows and rollers, by means of rods attached to the rear beam of the frame. A hydraulic wheel mechanism is installed on the frame, providing both transportation and operation of the machine as supports, setting and maintaining the processing depth. The machine is connected to the power source (tractor) by means of a height-adjustable traction-coupling device with a coupling loop at the end.

The working body consists of two "C"-shaped racks and an arrow paw with a grip width of 270 mm.
Spring rack made of strip 10x70 (steel 60s2A)
A rigid rack made of a 25x25 square.

The paws are arranged in 4 rows in such a way that the minimum distance between adjacent ones in a row is 650 mm, between rows - 480 mm, between adjacent ones in the plan - 210 mm, so that with a working width of the paw of 270 mm, an overlap of 60 mm is provided.

The spring-tooth harrow consists of a two-beam frame, on which teeth are installed in 2 rows with a pitch of 250 mm with an offset of 125 mm. The frame is suspended on 4 leashes on rods and is fixed with a limiting chain. allowing unimpeded climbing upwards from the given walking level.

Plate (ribbed) rollers of 255 mm are attached to two rods through an adjustable safety-pressure mechanism, which sets the necessary depth of travel, the force of pressure of the roller on the soil.