HARVEST 420 seeder is intended for drill seeding of grain-crops (wheat, rye, barley, and oats), leguminous plants (pea haricot beans, soya beans, pea everlasting, beans, lentil, chickpea, lupine) with introducing granulated mineral fertilizers. It may be used for planting of other crops similar to grain ones by the size of seeds and seeding rate (buckwheat, millet, sorghum, etc.).
The seeding rate is set by adjusting the working length of the coil, group adjusting of the seeding unit valves and changing the rotation rate of the seeding unit shaft.The rate of fertilizer application is adjusted using a handle.
The grain seeding unit has a grooved coil. The profi led clutch is pulled into the seeding unit box or is pulled out of the box, and changes the coil length, which reduces or increases the seeding rate.
The gearbox has six transmitting ratios. The gear shifting is carried out by pressing the lever and its movement along the shaft of the gear train.To extend the range of gears, variable gears are shifted.Seeders are fi tted with separate gearboxes for grain and fertilizer seeding units.
The service life of coulters has been increased by 100% due to the use of modern technologies for processing boron steels.
The integral structure of the “coulter press roller” unit allows adjusting the coulter to a predetermined depth at 1 cm intervals.
The seeder is aggregated with the tractors of the 1,4 pulling force.