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HR 1020-1030-1040 power harrows

HR 1020-1030-1040 silhouette

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 4,5 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.
HR 1020-1030-1040 at work

Your benefits

A perfect seedbed in all conditions

The attachment components of the VENTA seed drill are fitted to the packer frame of the HR power harrow

The seed drill mounted onto the roller frame

When coupled with a seeding combination, the power harrow depth and the seeding depth work completely independantly 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.
HR 1020-1030-1040 power harrows with adustable levelling bar

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.
Long-profile side deflectors ensure a perfect finish between two passes.

The benchmark for reliability

Central gearbox with oil cooling system on HR 1040

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.
HR Power Harrows and the linkage possibilities

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).
FAST-FIT blade attachment as standard on HR power harrows

Reliable rotor: copied but never equalled

Cross section of KUHN's power harrow rotor

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 centring 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.

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Equipment

A wide range of equipment is available such as track eradicators and stone deflectors. The wide choice of rollers will meet all of your requirements.

KSL 14 function selector

Hydraulic selector to control all functions

A double acting hydraulic selector enables you to control rotor working-depth, levelling-bar working-depth, coulter bar lift and coulter bar ground pressure.
STEELLINER furrow-opening roller for KUHN power harrow

Furrow-opening roller for the precise tamping of each seeding line

Power harrows in the HR 1040 R range are also compatible with the STEELLINER roller. With its overall diameter of 500 mm, this roller offers very good rolling and carrying capacities. It is adapted to difficult and wet conditions and provides excellent crumbling capacity on dry and hard soils.
PACKLINER furrow-opening roller for KUHN power harrow

Furrow-opening roller for the precise tamping of each seeding line

The PACKLINER roller (592 mm diameter) offers a large prismatic profile that improves self-cleaning and creates a regular furrow shape. It covers the seeds even in difficult conditions. It excels in light soil while being adapted to the most clayey soils.
MEGAPACKER roller for KUHN power harrow

Recommended for light soils, limestone, clayey-limestone and clay-loam soi...

Very large diameter (590 mm) packer roller consolidates the land very well in light soils.
Flexible MAXIPACKER roller

A flexible roller

Its large 535 mm diameter reduces rolling resistance. Coated scrapers increase service life, reduce maintenance and improve roller cleaning in sticky soils.
MAXICRUMBLER roller for KUHN power harrows

A light roller

The MAXICRUMBLER is ideal for spring and summer soil preparation. It requires low traction power and is economical. This 520 mm-diameter roller limits soil buildup and is highly resistant in stony soils.
V-shaped stone guards for work in stony conditions

Work in stony conditions

These power harrows can be fitted with V-shaped stone deflectors (HR 1040 R and HR 6042 R) or a bar stone deflector (HR 1030 R). These options stop the stones from becoming jammed between the blade holder and the beam, and prevent clods from passing over the top of the rotors.
Track eradicator available as option on KUHN power harrows

To loosen the soil compacted by the tractor wheels

The track eradicators available as optional equipment are designed to loosen the compacted ground where the tractor wheels have passed. They are adjustable in height. Depending on the working conditions and the amount of stones present in your fields, you can choose between a safety system with a traction bolt or springs.
    HR 3040 and VENTA 3020 seeding combination at work

    Specifications

    Technical characteristics
     
    Working width approx. (m)
    Transport width (m)
    Maximum tractor power (kW/hp) at 1000 min-1
    Minimum power requirement (kW/hp) at 1000 min-1
    Required tractor hydraulic equipment
    Gearbox
    PTO safety
    PTO speed (min-1)
    Rotor speed (min-1)
    Number of rotors
    Working depth adjustment
    Levelling bar
    Side deflectors
    Hitch
    Approx. weight (kg) with Maxicrumbler roller Ø 520 mm
    Approx. weight (kg) with Maxipacker roller Ø 535 mm
    Approx. weight (kg) with Megapacker roller Ø 590 mm
    Approx. weight (kg) with Packliner roller 12.5 cm row spacing Ø 592 mm
    Approx. weight (kg) with Packliner roller 15 cm row spacing Ø 592 mm
    Approx. weight (kg) with Steelliner roller 12.5 cm row spacing Ø 550 mm
    Approx. weight (kg) with Steelliner roller 15 cm row spacing Ø 550 mm
    HR 3020 HR 3520 HR 3530 HR 4020 HR 3030 HR 4030 HR 4530 HR 3040 HR 3540 HR 4040
    3.00 3.50 3.50 4.00 3.00 4.00 4.50 3.00 3.50 4.00
    3.00 3.50 3.50 4.10 3.00 4.10 4.55 3.00 3.50 4.10
    132 / 180 139 / 190 183 / 250 146 / 200 176 / 240 190 / 260 197 / 270 219 / 300 226 / 310 234 / 320
    59 / 80 66 / 90 66 / 90 73 / 100 59 / 80 73 / 100 80 / 110 66 / 90 77 / 105 88 / 120
    1 DA for the levelling bar - optional eq.
    1 DA for side makers - optional eq.
    1 DA for 4-function hydr. selector - optional eq.    		 1 DA for the levelling bar - optional eq.
    1 DA for side makers - optional eq.
    1 DA for 4-function hydr. selector - optional eq.    		 1 DA for the depth - optional eq.
    1 DA for the levelling bar - optional eq.
    1 DA for side makers - optional eq.
    1 DA for 4 function hydr. selector - optional eq.    		 1 DA for the levelling bar - optional eq.
    1 DA for side makers - optional eq.
    1 DA for 4-function hydr. selector - optional eq.    		 1 DA for the depth - optional eq.
    1 DA for the levelling bar - optional eq.
    1 DA for side makers - optional eq.
    1 DA for 4 function hydr. selector - optional eq.    		 1 DA for the depth - optional eq.
    1 DA for the levelling bar - optional eq.
    1 DA for side makers - optional eq.
    1 DA for 4 function hydr. selector - optional eq.    		 1 DA for the depth - optional eq.
    1 DA for the levelling bar - optional eq.
    1 DA for side makers - optional eq.
    1 DA for 4 function hydr. selector - 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
    DUPLEX DUPLEX DUPLEX DUPLEX DUPLEX DUPLEX DUPLEX DUPLEX with oil circulation DUPLEX with oil circulation DUPLEX with oil circulation
    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
    1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
    291- 336 (after inversion) 291- 336 (after inversion) 290 - 330 (after inversion) 291- 336 (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)
    10 12 12 14 10 14 16 10 12 14
    Hydraulic Hydraulic Hydraulic
    As standard - with hydraulic adjustment As standard - with hydraulic adjustment As standard - with hydraulic adjustment
    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
    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
    1320 1365 1490 1478 1430 1618 1913 1615 1690 1830
    1569 1658 1783 1809 1679 1949 2289 1865 1985 2160
    1611 1706 1831 1871 1721 2011 2341 1910 2030 2225
    1685 1779 1904 1956 1795 2096 2439 1980 2105 2310
    1672 1763 1888 1937 1782 2077 1970 2090 2290
    1659 1762 1887 1921 1769 2061 1955 2090 2275
    1625 1730 1855 1889 1735 2029 1920 2055 2240

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    Media

    HR 4020 power harrow at work
    HR 3040 power harrow in transport position
    HR 3040 and VENTA 3020 seeding combination at work
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