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3 to 4.5 m working width for HR 1020-1030-1040 rigid power harrows.
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When coupled with a seeding combination, the power harrow depth and the seeding depth work completely independently of each other. This is because the drill in mounted on the roller frame. This also increases stability, and guarantees accurate seed placement. These power harrows are designed to work with both pneumatic and mechanical seed drills.
Long and deep profiled side deflectors ensure a perfect finish between two passes. They are quick and easy to adjust with spring safety and double-arm attachment for optimum hold.
The central gearbox is equipped with an oil cooling system on 1040 series machines. The integrated pump and additional oil tank cools the oil before re-injecting it into the gearbox. With greater oil cooling capacity, the horsepower rating increases.
The standard coupling type is category 2 and 3 with the possibility of adapting to large tractors with cat. 4 quick hitch. Two connection points are possiblr, to position the machine closer to the tractor if required. The central gearbox is set back on the machine to reduce the angle of the PTO when turning on the headland.
The standard tines are equipped with a quick release system, a heavy duty protected linch pin holds the locking mechanism in place, simple remove it, the locking pins will drop down and the tines can slide out. The tines are straight with lengths of 315 mm (1020 and 1030 series) and 335 mm (1040 series).
The powerful rotor driveline is fully protected by a rigid gear case. The casing, bearings and tine holders form a compact and highly robust unit reducing torsion stress on the housing. The small distance between the casing and the blade holders prevents stones from getting jammed and channels soil-flow through the tines. The rotor has a maintenance-free and highly rigid trough. There is no gearwheel overhang thanks to convex gearwheels in forged steel which run in line with the upper bearings. The bearings require no maintenance; they are perfectly aligned in the one piece rotor drive casing so are not subject to distortion. Reinforced sealing is ensured with a cassette seal on HR models. Conical centering of blade holders (KUHN patent) prevents play on the splines. The blade holders are oval to prevent stones from getting jammed and facilitate their flow-through the machine.
| HR 3020 | HR 3520 | HR 4020 | HR 3030 | HR 3530 | HR 4030 | HR 4530 | HR 3040 | HR 3540 | HR 4040 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Working width approx. (m) | 3 | 3.5 | 4 | 3 | 3.5 | 4 | 4.5 | 3 | 3.5 | 4 |
| Transport width (m) | 3 | 3.5 | 4.1 | 3 | 3.5 | 4.1 | 4.55 | 3 | 3.5 | 4.1 |
| Maximum tractor power (kW/hp) at 1000 min-1 | 132/180 | 139/190 | 146/200 | 176/240 | 183/250 | 190/260 | 197/270 | 219/300 | 226/310 | 234/320 |
| Minimum power requirement (kW/hp) at 1000 min- | 59/80 | 66/90 | 73/100 | 59/80 | 66/90 | 73/100 | 80/110 | 66/90 | 77/105 | 88/120 |
| Required tractor hydraulic equipment | 1 DA for the levelling bar - optional eq 1 DA for side markers - optional eq 1 DA for 4 function hydr. sector - optional eq. | 1 DA for the levelling bar - optional eq 1 DA for side markers - optional eq 1 DA for 4 function hydr. sector - optional eq. | 1 DA for the levelling bar - optional eq 1 DA for side markers - optional eq 1 DA for 4 function hydr. sector - optional eq. | 1 DA for the depth - optional eq. 1 DA for the levelling bar - optional eq 1 DA for side markers - optional eq 1 DA for 4 function hydr. sector - optional eq. | 1 DA for the depth - optional eq. 1 DA for the levelling bar - optional eq 1 DA for side markers - optional eq 1 DA for 4 function hydr. sector - optional eq. | 1 DA for the depth - optional eq. 1 DA for the levelling bar - optional eq 1 DA for side markers - optional eq 1 DA for 4 function hydr. sector - optional eq. | 1 DA for the depth - optional eq. 1 DA for the levelling bar - optional eq 1 DA for side markers - optional eq 1 DA for 4 function hydr. sector - optional eq. | 1 DA for the levelling bar 1 DA for the working depth | 1 DA for the levelling bar 1 DA for the working depth | 1 DA for the levelling bar 1 DA for the working depth |
| Gearbox | DUPLEX | DUPLEX | DUPLEX | DUPLEX | DUPLEX | DUPLEX | DUPLEX | DUPLEX with oil circulation | DUPLEX with oil circulation | DUPLEX with oil circulation |
| PTO safety | Cam type cut-out clutch | Cam type cut-out clutch | Cam type cut-out clutch | Cam type cut-out clutch | Cam type cut-out clutch | Cam type cut-out clutch | Cam type cut-out clutch | Cam type cut-out clutch | Cam type cut-out clutch | Cam type cut-out clutch |
| PTO speed (min-1) | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Rotor speed (min-1) | 290-330 (after inversion) | 290-330 (after inversion) | 290-330 (after inversion) | 290-330 (after inversion) | 290-330 (after inversion) | 290-330 (after inversion) | 290-330 (after inversion) | 296-463 (after inversion) | 296-463 (after inversion) | 296-463 (after inversion) |
| Number of rotors | 10 | 12 | 14 | 10 | 12 | 14 | 16 | 10 | 12 | 14 |
| Working depth adjustment | Hydraulic | Hydraulic | Hydraulic | |||||||
| Levelling bar | As standard - with hydraulic adjustment | As standard - with hydraulic adjustment | As standard - with hydraulic adjustment | |||||||
| Side deflectors | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm | Adjustable - with spring safety and double arm |
| Hitch | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes | 3-point - Cat 2-3, 3N and 4N - yokes |
| Approx. weight (kg) with Maxicrumbler roller Ø 520 mm | 1320 | 1365 | 1478 | 1430 | 1490 | 1618 | 1913 | 1615 | 1690 | 1830 |
| Approx. weight (kg) with Maxipacker roller Ø 535 mm | 1569 | 1658 | 1809 | 1679 | 1783 | 1949 | 2289 | 1865 | 1985 | 2160 |
| Approx. weight (kg) with Megapacker roller Ø 590 mm | 1611 | 1706 | 1871 | 1721 | 1831 | 2011 | 2341 | 1910 | 2030 | 2225 |
| Approx. weight (kg) with Packliner roller 12.5 cm row spacing Ø 592 mm | 1685 | 1779 | 1956 | 1795 | 1904 | 2096 | 2439 | 1980 | 2105 | 2310 |
| Approx. weight (kg) with Packliner roller 15 cm row spacing Ø 592 mm | 1672 | 1763 | 1937 | 1782 | 1888 | 2077 | 1970 | 2090 | 2290 | |
| Approx. weight (kg) with Steelliner roller 12.5 cm row spacing Ø 550 mm | 1659 | 1762 | 1921 | 1769 | 1887 | 2061 | 1955 | 2090 | 2275 | |
| Approx. weight (kg) with Steelliner roller 15 cm row spacing Ø 550 mm | 1625 | 1730 | 1889 | 1735 | 1855 | 2029 | 1920 | 2055 | 2240 |
