Power harrows HR 104-1004 & HRB 102-103

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All Power Harrows

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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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All Power Harrows

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Benefits
Equipment
Media

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.

Seedbed of superior quality

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.

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

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

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.

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.

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.

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.

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

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.