UNDERHAUG 7926

New

UM 7926 Direct seeder 1.5 m, 6 cm row spacing An efficient seed drill for renewing existing grassland without prior tillage. Availability in working widths from 1.5 to 4 meter. UM – 7926 Direct seed drill 1.5 m, 6 cm row spacing UM – 7942 Direct seed drill 2.5 m, 6 cm row spacing UM – 7950 Direct seed drill 3 m, 6 cm row spacing UM – 7966 Direct seed drill 4 m, 6 cm row spacing What types of seeds can be sown? The machine can sow all kinds of grass seeds and most herb seeds. It is the seed size that limits its use. Ordinary grain seed is too large for the feed rollers. Practical use in agriculture On surface-cultivated grassland it’s difficult to perform tillage. A direct seed drill is the answer. Stones just below the turf? No problem! The spring-loaded seed coulters oscillate freely and slide easily over such obstacles. The seed drill is also well suited for sowing special seed varieties in existing crops, such as clover in clover-poor meadows. And it’s also well suited for sowing herbs and other vegetable varieties (organic farming.) Golf courses, sports fields, and other green areas. The direct seed drill has proven to be an excellent seed drill for renewing sports fields, golf courses and parks. The unique seeding units consist of “skids” with two slots with sharp adjustable coulters. This avoids ripping up loose soil, stones, and plant residues. Fairways on several golf courses have been reseeded with great success, golf was played with no disruption. For maintenance and rejuvenating of sports fields and golf courses it may be necessary to cross-sow. For maintenance and rejuvenating of sports fields and golf courses we can deliver a special skid for the seeding units. This is based on our long experience sowing on golf courses Unique seed coulters Our unique seed coulters consist of “skids” with two slots with sharp adjustable coulters with adjustable ground pressure. The coulter pressure is adjustable from 10 kg and upwards by means of a spring on each coulter arm and hydraulic depth wheels (standard equipment on all machines). Each skid has two longitudinal slots. A hardened steel knife in front of each slot can be adjusted up or down to achieve desired sowing depth. The seed is dropped straight into the rows created by the sharp coulters. This system has proven to be better than both ordinary coulters and disc coulters. The seeding units consist of “skids” with two slots with sharp adjustable coulters. This avoids ripping up loose soil, stones, and plant residues. The seed drill is available in 4 working widths from 1.5 m to 3.0 m. UM7900 has 21 seeding units with a total of 42 coulters, 42 rows and a row spacing at 6 cm. Working width 2.5 m. UM7950 has 25 seeding units with a total of 50 coulters, 50 rows and a working width of 2.5 m.UM 7966 has 33 seeding units with a total of 66 coulters, 66 rows and a working width of 3,5 m. Otherwise the 5 machines are exactly the same. Seed coulters The seed drill has a seed hopper with feed rollers. Each seed hoper has 26, 34, 42, 50 or 66 outlets (1.5, 2.0, 2.5, 3.0 or 4.0 m machine), respectively. The seed rate is set centrally and steplessly from 0 to 50 kg / ha (5 kg / decare). (As the thousand grain mass varies quite a lot, it is recommended to calibrate the seed rate setting before starting seeding operation) Speed – capacity For metering system with displaceable feed roller, the amount of seed discharged depends on both how long the feed roller is pushed into the housing and on how fast the roller rotates. If the feed roller rotates too fast, the roller starts to ”cheat” because it rotates so fast that the seed does not fill the grooves in the rollers completely. The seed rollers are driven via a chain by a land wheel. It is not recommended to drive faster than 6-7 km / h, which corresponds to 15 –17.5 da / h for a 2.5 m machine and 18 –21 decare / h for 3.0 m machine.