Kuhn Metasa mounted seed drills are meant for low power tractors, and their construction consists of: One-piece frame, seed and fertilizer hoppers, two depth wheels, rubber press wheels, seed and fertilizer distribution systems, seed and fertilizer furrow openers, disc Coulters,knife Coulters, covering wheels, markers etc.
Frame and 3-point Hitch
The spacing among planting sections is varied due to its form tubular type tool bar. The hydraulic lift is made through the 3 points of tractor. The 3 point hitch is together with the frame of the machine.
The PLM seed hoppers are manufactured in polymeric material of high resistance. These characteristics qualify a better uniformity in the planting and handling practicity. They have jointed cover and an individual capacity of 45 litres (40kg)per row
The fertilizer hoppers of PLM planters are made of the same material as the seed hopper. They have articulated lid and capacity of 60 litres per row.
The power is transmitted mechanically by the movement of the press wheels and the movement of transmission mechanism is realized through chains. The changes of gears modify the quantities of fertilizer per hectare or seeds per metre.
With range of seed plates for each specific culture and distance between rows, the distribution of seeds is made through the metering units which have the seed metre discs. The seed plates are chosen according to the size of of the seeds to be planted. It’s very important that all seeds go through the seed plates holes.
The fertilizer distribution is accomplished through distributor with auger metering. The sprockets can be modified according to the fertilizer dosage wanted.
Auger metering options are available as 1″ or 2″. The 2″ option will increase the volume of fertilizer twice.
The fertilizer distributor has exit housing in polymeric, protecting cover, and quick latch for change of the sprockets,eliminating this way, the clogging risks and generating easiness for the cleaning.
Fertilizer Opening System of the Furrow
PLM furrow openers for fertilizer exist in two types: Disc opener which has the function to depose the fertilizer below or beside seeds.
The knife opener type is used for deeper furrow where soil is more compact.
They help close the furrow. They are dented and are made in cast iron with vertical and angular adjustments.
It has the function of of drive wheel to transmit the power for fertilizer and seed metering.
It is also responsible for the closing of the furrow and to compact the soil, to protect the seed.
Mechanical row markers have the function to demarcate the planted area, to certify the space between the rows during planting.
PLM planters exist in two, three and four rows. They are easy to maintain and use.