Auger seeders.
The sowing unit in these seeders is made in the form of one or two wood or plastic augers. The fertilizer removed from the fertilizer box by means of a comb agitator moves along the sloping bottom of the auger box . The snails rotate and throw the fertilizer onto the field.
The agitator is driven by an eccentric. The reciprocating stroke of the stirrer is adjusted by changing the size of the eccentric. The drive of the worms and the agitator is transmitted via toothed gears from the road wheels, because these seeders are adapted to horse power. The sowing amount is regulated by changing the stroke of the agitator and changing the size of the sowing slot.
The best uniformity of sowing is achieved by setting a small gap and a large agitator stroke. The advantage of auger seeders is good evenness of sowing when sowing dry fertilizers. However, when sowing moist fertilizers, the bottom under the agitator becomes clogged quickly, which results in a decrease in the amount of fertilizer spread.