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HR 104-1004 & HRB 102-103 power harrows

HR 104-1004 / HRB 102-103 plain white background

A perfectly prepared seedbed

This power harrow ranges offer a working width from 2.50 m to 6 m. Rigid or foldable, they can be used in solo or combined with a seed drill. Discover the key to get an optimal seedbed in all conditions.

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Optimal seedbed preparation is imperative to achieve consistent germination and root development. Many factors require you to work in different conditions. The wide selection of tines and equipment as well as the large range of rotor speeds, are all arguments that will ensure your satisfaction with your KUHN power harrow. Take a look at our power harrow to admire the robustness and high level of manufacturing quality.
HR 104-1004 / HRB 102-103 at work

Your benefits

Seedbed of superior quality

Diagram of the gradual mixing profile of the power harrow tine holders

Tine holder positioning

The tine holders of the KUHN power harrows are positioned in a specific way to create a gradual soil mixing. This precise and exclusive design prevents the harrow from being affected by negative vibrations while reducing power consumption.

Controlling the depth

The height adjustment of the roller is easily done by means of limiting pins. Free to move downward, the roller retains all its grip, even if the machine was to lift slightly during work. The rounded shape of the pin and the stop ensures a large contact area.
Roller height adjustment

Perfect finish

The specific design of the side deflectors guide and channel the soil to ensure good finish between passes. Fixed on the HRB roller arms, the deflectors follow the working height of the roller. On the HR 1004 series, they are mounted on reinforced arms. The efficiency and quality of work are maintained even in stony conditions.
Side deflector of the HR 4504 power harrow

Pease of mind with the simple, robust and long-lasting design

Cross-section of the KUHN power harrow rotor

A rotor sometimes copied never matched

The powerful rotor drive is fully protected by a rigid gearbox and trough. The casing, bearings and tine holders form a compact and very sturdy assembly, limiting the torsion stress on the casing. The rotor has a high-rigidity, maintenance-free trough. The curved profile of the forged steel sprockets ensure that the gears are in line with the upper bearings. The maintenance free bearings create a permanent hold, eliminating any risk of play. The sealing is reinforced by a cassette seal on the HR and a lip seal on the HRB. The conical centering of the blade holder (KUHN patent) eliminates any risk of play in the splines. The blade holder is oval-shaped, avoiding blockages of stones and encouraging their evacuation.

Reliable driveline and gearbox

The rotors are driven by large diameter gears. Therefore, the power transmission to the tines is through a large number of intermeshing teeth to transfer the torque loading.

Most KUHN power harrows are equipped with duplex gearboxes. Thanks to their interchangeable sprockets, you can choose the speed most suited to your needs. The entire driveline is protected by a cam type cut-out clutch.
Duplex gearbox that adapts to the most difficult conditions

A robust central frame, linkage and headstock

On models with 4 and 5 m working width, the central frame is made with large section profiles ensuring good rigidity and high bending and torsion resistance. For even more simplicity and comfort, some models have hydraulic locking in transport position.
The central frame of the HR 6004 DRC power harrow is composed of a double front and rear frame made of large section rectangular profiles.
The high-capacity 3-point linkage, made from heat treated steel to reduce wear, pivot to allow the machine to follow the ground contours. The headstock is designed and made from steel plate formed and welded ensuring a high resistance.
Central frame of the HR 6004 DRC power harrow

A power-harrow suited to your conditions

FAST-FIT, OPTIMIX, DURAKUHN, 36 cm extra long.

A large choice for increased versatility of the HR 104-1004 range

The FAST-FIT tines are fitted as standard on the KUHN HR 104 & 1004 power harrow range. They have a bevelled and twisted shape that creates a fine tilth on the surface, perfect for germination even in difficult conditions (stony, hard and clay soils). They are also adapted to high groundspeeds.
The OPTIMIX tines feature an exclusive design which ensure a quality seedbed in stubble cultivations, subsoiled ground or following pasture regeneration. The aggressive design of the OPTIMIX tines ensure greater soil movement and a greater soil to residue mix.
To increase the service life, KUHN offers hard coated DURAKUHN tines.
For deeper cultivations, 36 cm extra long tines are also available for specialist crops.

A wide range of rotor speeds available

A wide range of gear sets can ordered as an option to match your requirements. Also, the gears inside the duplex gearbox can be reversed to offer a wide range of speeds in order to adapt the crumbling intensity. The PTO input set towards the rear of the machine reduces the u-joint angle and makes it easier to lift the power harrow during headland turns.
The Duplex gearbox offers a wide range of rotor speeds

Easily and quickly adjust the settings

KUHN folding power harrows can be used in rigid or floating position thanks to their articulated central frame. In just a few minutes, you can adapt the tool to the conditions and terrain by simply pivoting an oblong-holed plate.
All HRB 103 DR series and HR 1004 DR series models are equipped with standard height-adjustable side deflectors for improved adaptation to different working conditions. Articulated, they are fitted with spring safety incase of contact with an obstacle.
Power harrow rigid or floating position with the articulated central frame.

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Equipment

A wide choice of rollers for all conditions. Better equipped with track eradicators, hydraulic coupling, front levelling share and rear levelling bar.

STEELLINER furrow-opening roller for KUHN power harrow

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

With its overall diameter of 500 mm on HRBs and 550 mm on HRs, the STEELLINER roller offers very good rolling and carrying capacities. It is adapted to difficult and wet conditions and provides an 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.
Flexible MAXIPACKER roller

A flexible roller

Its large diameter of 535 mm reduces rolling resistance. It can easily be combined with seed drills or planters. Standard hard coated scrapers increase service life, reduce maintenance and improve roller cleaning in sticky soils.
CRUMBLER roller for KUHN power harrow

Use in dry and slightly sticky soil without integrated seed drill

These rollers are used for soil preparation in spring and summer. They require low traction power and are economical. The CRUMBLER roller (diameter 390 mm) has removable tubes.
Track eradicator available as optional equipment on KUHN power harrows

To loosen soil compacted by tractor wheels

Available as optional equipment on all folding HRs and rigid HR 104 and 1004 series, they are adjustable in height and are equipped with traction bolt or spring safety. When working with twin wheels, the machine can be equipped with two track eradicators per side on the same holder.
Hydraulic linkage on KUHN power harrows

The robustness you require!

2,500 kg is the lifting capacity of the standard hydraulic linkage available on all power harrows except folding models. A high capacity linkage with a lifting capacity of 3,300 kg is available to attach large-capacity seed drills on the HR 104 and 1004 power harrow ranges. Equipped with reinforced and bushed cylinders and pivot pins, it also has a hydraulic lift limiter.
Front levelling share for KUHN power harrows

Foldable power harrows: a perfect seedbed

The front levelling share crumbles the soil between the two troughs on the folding models. This share is particularly useful for crops requiring a flawless seedbed and also for soil preparations in min-till cropping systems.
Levelling bar for KUHN power harrow

Made-to-measure seedbed

The front levelling bar is used to break up large clods on uneven terrain. Easily removable and adjustable in height, it does not limit the working depth. To obtain a fine seedbed, the levelling bar can be positioned at the rear between the rotors and the roller. You can even mount two leveling bars: one at the rear, the other at the front.
MAXICRUMBLER roller for KUHN power harrows

A light roller

This roller is ideal for spring and summer soil preparation. It requires low traction power and is economical. The MAXICRUMBLER roller (520 mm diameter) limits soil accumulation and works well in stony soils.
    HR 4504 power harrow at work

    Specifications

    Technical Characteristics

     
    Working width approx. (m)
    Overall width (m)
    Transport width (m)
    Maximum tractor power (kW/hp)
    Maximum tractor power (kW/hp) at 540 min-1
    Maximum tractor power (kW/hp) at 1000 min-1
    Minimum power requirement (kW/hp)
    Minimum power requirement (kW/hp) at 540 min-1
    Minimum power requirement (kW/hp) at 1000 min-1
    Required tractor hydraulic equipment
    Gearbox
    Rear PTO output
    Rear PTO (same rotation as tractor)
    PTO safety
    PTO speed (min-1)
    Rotor speed 540 min-1
    Rotor speed 1000 min-1
    Type of blades
    Number of rotors
    Side deflectors
    Hitch
    Working position
    Transport locking position
    Approx. weight. (kg) with Crumbler roller with removable tubes Ø 390 mm
    Approx. weight (kg) with Crumbler roller with removable tubes Ø 390 mm / Maxicrumbler roller Ø 520 mm
    Approx. weight (kg) with Maxicrumbler roller Ø 520 mm
    Approx. weight (kg) with Packer PK2 roller Ø 515 mm
    Approx. weight (kg) with Packer PK2 roller Ø 515 mm
    Approx. weight (kg) with Packer PK2 / Packer PK2 HD roller Ø 515 mm
    Approx. weight (kg) with Maxipacker roller Ø 535 mm
    Approx. weight (kg) with Steelliner roller 12.5 cm row spacing Ø 500 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
    Rear levelling share
    HRB 252 D HRB 302 D HR 304 D HFT 304 D HR 304 M HR 404 D HR 404 M HFT 302 D PHY 302 HFT 252 D PHY 252 PHY 202 HRB 202 S PHY 202 S HR 3004 D HR 3004 NC PHY 3004 HR 3504 D HFT 3504 D PHY 3504 HR 3504 NC HR 4004 D HFT 4004 D HR 4004 NC HR 4504 D HR 5004 DRC HFT 5004 DRC PHY 5004 DMP HR 4004 DR HFT 4004 DR HR 4504 DRC HR 6004 DRC PHY 6004 DRC HR 6004 DR B
    2.50 3.00 3.00 3.00 3.00 4.00 4.00 3.00 3.00 2.50 2.50 2.10 2.10 2.10 3.00 3.00 3.50 3.50 3.50 3.50 4.00 4.00 4.00 4.50 5.00 5.00 5.00 4.00 4.00 4.50 6.00 6.00 6.00
    2.60 3.08 3.12 3.12 3.12 4.11 4.11 3.08 3.08 2.60 2.60 2.19 2.19 2.19 3.08 3.08 3.50 3.50 3.50 3.50 4.10 4.10 4.10 4.55 4.97 4.97 4.97 4.08 4.08 4.67 6.21 6.21 6.21
    2.67 harrow solo (2.51 with rollers raised) 2.67 harrow solo (2.51 with rollers raised) 2.67 harrow solo (2.51 with rollers raised) 2.67 harrow solo (2.51 with rollers raised) 2.67 harrow solo (2.51 with rollers raised) 2.67 harrow solo (2.51 with rollers raised) 2.80 (2.52 with rollers raised) 2.80 (2.52 with rollers raised) 2.80 (2.52 with rollers raised)
    184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 265 / 350 265 / 350 265 / 350
    73 / 100 73 / 100 73 / 100 73 / 100 73 / 100 73 / 100 59 / 80 59 / 80 59 / 80
    103 / 140 103 / 140 139 / 190 139 / 190 139 / 190 139 / 190 139 / 190 103 / 140 103 / 140 103 / 140 103 / 140 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250 184 / 250
    37 / 50 44 / 60 44 / 60 44 / 60 37 / 50 37 / 50 96 / 130 96 / 130 96 / 130 81 / 110 81 / 110 88 / 120 130 / 180 130 / 180 130 / 180
    30 / 40 30 / 40 30 / 40
    59 / 80 59 / 80 59 / 80 73 / 100 73 / 100 59 / 80 59 / 80 66 / 90 66 / 90 66 / 90 66 / 90 73 / 100 73 / 100 73 / 100 81 / 110
    1 DA 1 DA 1 DA 1 DA 1 DA 1 DA 1 DA 1 DA 1 DA
    DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears MULTIPLEX gearbox with lever gear selector DUPLEX with gear selection by interchangeable gears MULTIPLEX gearbox with lever gear selector DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears Single speed for PTO at 540 min-1 Single speed for PTO at 540 min-1 Single speed for PTO at 540 min-1 DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears DUPLEX with gear selection by interchangeable gears Central DUPLEX with gear selection by interchangeable gears and 2 side gearboxes Central DUPLEX with gear selection by interchangeable gears and 2 side gearboxes Central DUPLEX with gear selection by interchangeable gears and 2 side gearboxes Central DUPLEX with gear selection by interchangeable gears and 2 side gearboxes Central DUPLEX with gear selection by interchangeable gears and 2 side gearboxes Central DUPLEX with gear selection by interchangeable gears and 2 side gearboxes Central gearbox with oil cooler
    Side DUPLEX gearboxes for PTO at 1000 min-1
    after gear inversion 306 min-1 - 234 min-1 (factory setting) - Original gears 21/24 teeth     		Central gearbox with oil cooler
    Side DUPLEX gearboxes for PTO at 1000 min-1
    after gear inversion 306 min-1 - 234 min-1 (factory setting) - Original gears 21/24 teeth     		Central gearbox with oil cooler
    Side DUPLEX gearboxes for PTO at 1000 min-1
    after gear inversion 306 min-1 - 234 min-1 (factory setting) - Original gears 21/24 teeth
    As standard As standard As standard As standard As standard
    As standard As standard As standard As standard As standard As standard as standard As standard As standard As standard As standard As standard on all models As standard on all models As standard on all models As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard As standard
    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 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 Cam type cut-out clutch Cam type cut-out clutch on each DUPLEX gearbox Cam type cut-out clutch on each DUPLEX gearbox Cam type cut-out clutch on each DUPLEX gearbox
    540 or 1000 540 or 1000 540 / 750 / 1000 (factory set) 540 / 750 / 1000 (factory set) 540 / 750 / 1000 (factory set) 540 / 750 / 1000 (factory set) 540 / 750 / 1000 (factory set) 540 or 1000 540 or 1000 540 or 1000 540 or 1000 540 540 540 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 750 / 1000 (factory set) 750 / 1000 (factory set) 750 / 1000 (factory set) 750 / 1000 (factory set) 540 / 750 / 1000 (factory set) 750 / 1000 (factory set)
    221 / 289 (factory set / after gear reversal) 221 / 289 (factory set / after gear reversal) 221 / 289 (factory set / after gear reversal) 221 / 289 (factory set / after gear reversal) 221 / 289 (factory set / after gear reversal) 221 / 289 (factory set / after gear reversal) 253 253 253
    410 / - (factory set / after gear reversal) 410 / - (factory set / after gear reversal) 270 (factory set) / 360 270 (factory set) / 360 250 (factory set) / 306 (factory set) / 391 270 (factory set) / 360 250 (factory set) / 306 (factory set) / 391 410 / - (factory set / after gear reversal) 410 / - (factory set / after gear reversal) 410 / - (factory set / after gear reversal) 410 / - (factory set / after gear reversal) 468 (in favorable conditions) 468 (in favorable conditions) 468 (in favorable conditions) 230 / 313 (see table of rotational speeds page) 230/313 (see table of rotational speeds page) 230 / 313 (see table of rotational speeds page) 230 / 313 (see table of rotational speeds page) 230 / 313 (see table of rotational speeds page) 230/313 (see table of rotational speeds page) 230 / 313 (see table of rotational speeds page) 230 / 313 (see table of rotational speeds page) 230/313 (see table of rotational speeds page) 230 / 313 (see table of rotational speeds page)
    Bolted Bolted FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades Bolted Bolted Bolted Bolted Bolted FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT with boron steel blades FAST-FIT FAST-FIT FAST-FIT FAST-FIT FAST-FIT FAST-FIT FAST-FIT FAST-FIT
    10 10 10 14 14 10 10 12 12 12 12 14 14 14 16 16 16 16 13 13 15 20 20 20
    As standard - With spring safety As standard - With spring safety As standard - With spring safety As standard - With spring safety As standard - With spring safety
    Cat. 2 and 3 with yokes Cat. 2 and 3 with yokes Cat. 2 and 3 with pivoting lower links Cat. 2 and 3 with pivoting lower links Cat. 2 and 3 with pivoting lower links Cat. 2 and 3 with pivoting lower links Cat. 2 and 3 with pivoting lower links Cat. 2 and 3 with yokes Cat. 2 and 3 with yokes Cat. 2 and 3 with yokes Cat. 2 and 3 with yokes Cat. 2 and 3 Cat. 2 and 3 Cat. 2 and 3 Cat. 2 and 3N (pivoting lower links cat.2 as standard - cat.3 to order from KUHN Parts) Cat. 2 Cat. 2 and 3 Cat. 2 and 3 Cat. 2 and 3 with pivoting lower links Cat. 2 and 3 Cat. 2 and 3 Cat. 2 and 3 Cat. 2, 3N & 3 Cat. 2, 3N & 3 Cat. 2, 3N & 3 Cat. 2, 3N & 3 Cat. 2, 3N & 3 Cat. 2, 3N & 3 Cat. 2, 3N & 3 Cat. 2, 3N & 3 Cat. 3 with pivoting lower links Cat. 3 with pivoting lower links Cat. 3 with pivoting lower links
    Rigid or floating Rigid or floating Rigid or floating Rigid or floating Rigid or floating Rigid or floating Fixed or floating Rigid or floating Rigid or floating
    Hydraulic Hydraulic Hydraulic Mechanical Mechanical Hydraulic
    1090 1090 1130 - - 730 730 730 1185 - - - - - -
    835 / 850 965 / 975 965 / 975 965 / 975 835 / 850 835 / 850
    1100 1100 1140 1470 1510 1195 1400 1400 1400 1580 1580 1730 2350 2350 2350 2115 2115 2275 2900 2900 2900
    1000 1170 1170 1170 1000 1000 900 900 900
    2625 2625 2625 2340 2340 2520 3290 3290 3290
    1295 1295 1335 1740 1780 1390 1635 1635 1635 1850 1850 2020
    1035 1200 1325 1325 1365 1790 1830 1200 1200 1035 1035 1420 1420 1685 1685 1685 1900 1900 1900 2075 2700 2700 2700 2390 2390 2595 3350 3350 3350
    - 1325 1325 1325 - - 3550 3550 3550
    1550 1520 1840 1840 1840 1840 2095 2095
    1450 1450 1490 1950 1990 2860 2860 2860 2480 2480 -
    As standard As standard As standard

    Some models are not available in all countries.
    Please always check with your local distributor.

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    Media

    HR 5004 DR power harrow at work

    HR 104-1004 / HRB 102-103 in action

    HRB 303 power harrow at work
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