A perfect seedbed in all conditions

3 to 4.5 m working width for HR 1020-1030-1040 rigid power harrows.

 

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KUHN's new range of HR power harrows has a model to suit every condition as well as options adapted to your requirements. The HR 1020, 1030 & 1040 series power harrows with working widths of 3 to 4 m, can work in solo or in combination with a seed drill. The HR 1040 series power harrows are ideal for high-powered tractors up to 320 hp. Hydraulic adjustments make your job easier, and as work output is one of our priorities too, our power harrows have been developed to extremely high standards, to ensure you are able to work non-stop.

Your Benefits

A perfect seedbed in all conditions

The seed drill mounted onto the roller frame

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.

Tines, rotors and levelling bar adapted to your conditions

The specific design of the tine helps create a fine tilth with a working depth of down to 20 cm. The HR 1040 series features 335 mm tines to perform in the most challenging conditions. Duplex gearboxes make it possible to adapt rotor speed to working conditions. Speed can vary between 255 and 539 rpm for the 1040 series to achieve excellent seeding quality in very difficult conditions. Depending on the series, depth and levelling-bar position are hydraulically adjustable from the cab to adjust the machine on the move.

Perfect levelling between passes

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 benchmark for reliability

A gearbox with a difference

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.

A linkage adapted to all tractors

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.

FAST-FIT blades as standard

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).

Reliable rotor: copied but never equaled

The perfect rotor design

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.

Specifications

Technical characteristics

HR 3020HR 3520HR 4020HR 3030HR 3530HR 4030HR 4530HR 3040HR 3540HR 4040
Working width approx. (m)33.5433.544.533.54
Transport width (m)33.54.133.54.14.5533.54.1
Maximum tractor power (kW/hp) at 1000 min-1132/180139/190146/200176/240183/250190/260197/270219/300226/310234/320
Minimum power requirement (kW/hp) at 1000 min-59/8066/9073/10059/8066/9073/10080/11066/9077/10588/120
Required tractor hydraulic equipment1 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 depth1 DA for the levelling bar 1 DA for the working depth1 DA for the levelling bar 1 DA for the working depth
GearboxDUPLEXDUPLEXDUPLEXDUPLEXDUPLEXDUPLEXDUPLEXDUPLEX with oil circulationDUPLEX with oil circulationDUPLEX with oil circulation
PTO safetyCam type cut-out clutch Cam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutch
PTO speed (min-1)1000100010001000100010001000100010001000
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 rotors10121410121416101214
Working depth adjustmentHydraulicHydraulicHydraulic
Levelling barAs standard - with hydraulic adjustmentAs standard - with hydraulic adjustmentAs standard - with hydraulic adjustment
Side deflectorsAdjustable - with spring safety and double armAdjustable - with spring safety and double armAdjustable - with spring safety and double armAdjustable - with spring safety and double armAdjustable - with spring safety and double armAdjustable - with spring safety and double armAdjustable - with spring safety and double armAdjustable - with spring safety and double armAdjustable - with spring safety and double armAdjustable - with spring safety and double arm
Hitch3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes3-point - Cat 2-3, 3N and 4N - yokes
Approx. weight (kg) with Maxicrumbler roller Ø 520 mm1320136514781430149016181913161516901830
Approx. weight (kg) with Maxipacker roller Ø 535 mm1569165818091679178319492289186519852160
Approx. weight (kg) with Megapacker roller Ø 590 mm1611170618711721183120112341191020302225
Approx. weight (kg) with Packliner roller 12.5 cm row spacing Ø 592 mm1685177919561795190420962439198021052310
Approx. weight (kg) with Packliner roller 15 cm row spacing Ø 592 mm167217631937178218882077197020902290
Approx. weight (kg) with Steelliner roller 12.5 cm row spacing Ø 550 mm165917621921176918872061195520902275
Approx. weight (kg) with Steelliner roller 15 cm row spacing Ø 550 mm162517301889173518552029192020552240

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