Power harrows HR 104-1004 & HRB 102-103

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Equipment
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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
Specifications
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.

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 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

HR 304 D	HR 404 D	HR 3004 D	HR 3504 D	HR 4004 D	HR 4004 DR	HR 4504 DRC	HR 5004 DRC	HR 6004 DRC	HR 304 M	HRB 252 D	HRB 302 D	HRB 303 D	HRB 353 DN	HRB 403 D	HRB 403 DR	HRB 453 DR	HRB 503 DR
3.00	4.00	3.00	3.44	4.00	4.00	4.50	4.95	6.00	3.00	2.50	3.00	3.00	3.44	4.00	4.00	4.50	4.95
3.12	4.11	3.08	3.50	4.10	4.08	4.67	5.00	6.21	3.12	2.60	3.08	3.08	3.50	4.11	4.08	4.67	5.00
					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)							2.67 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)
					184 / 250	184 / 250	184 / 250	265 / 350							132 / 180	132 / 180	132 / 180
										73 / 100	73 / 100
139 / 190	139 / 190	184 / 250	184 / 250	184 / 250					139 / 190	103 / 140	103 / 140	118 / 160	118 / 160	118 / 160
					81 / 110	88 / 120	96 / 130	130 / 180		37 / 50	44 / 60	51 / 70	59 / 80	66 / 90	81 / 110	88 / 120	96 / 130
59 / 80	73 / 100	59 / 80	66 / 90	73 / 100					59 / 80
					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	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 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	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	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
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	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 on each DUPLEX gearbox	Cam type cut-out clutch						Cam type cut-out clutch	Cam type cut-out clutch	Cam type cut-out clutch
540 / 750 / 1000 (factory set)	540 / 750 / 1000 (factory set)	1000	1000	1000	750 / 1000 (factory set)	750 / 1000 (factory set)	750 / 1000 (factory set)		540 / 750 / 1000 (factory set)	540 or 1000	540 or 1000	540 / 750 / 1000 (factory set)	540 / 750 / 1000 (factory set)	540 / 750 / 1000 (factory set)	750 / 1000 (factory set)	750 / 1000 (factory set)	750 / 1000 (factory set)
										221 / 289 (factory set / after gear reversal)	221 / 289 (factory set / after gear reversal)
270 (factory set) / 360	270 (factory set) / 360	230 / 313 (see table of rotational speeds page)	230 / 313 (see table of rotational speeds page)	230 / 313 (see table of rotational speeds page)					250 (factory set) / 306 (factory set) / 391	410 / - (factory set / after gear reversal)	410 / - (factory set / after gear reversal)	270 (factory set) / 360	313 (factory set) / 230	234 (factory set) / 306
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 with boron steel blades	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
10	14	10	12	14	13	15	16	20	10			10	12	13	13	15	16
As standard - With spring safety	As standard - With spring safety								As standard - With spring safety
Cat. 2 and 3N (pivoting lower links cat.2 as standard - cat.3N to order from KUHN Parts)	Cat. 2 and 3 with pivoting lower links	Cat. 2 and 3N (pivoting lower links cat.2 as standard - cat.3N to order from KUHN Parts)	Cat. 2 and 3 with pivoting lower links	Cat. 2 and 3 with pivoting lower links	Cat. 2, 3N & 3	Cat. 2, 3N & 3	Cat. 2, 3N & 3	Cat. 3 with pivoting lower links	Cat. 2 and 3N (pivoting lower links cat.2 as standard - cat.3N to order from KUHN Parts)	Cat. 2 and 3N with yokes	Cat. 2 and 3N with yokes	Cat. 2 and 3N (pivoting lower links cat.2 as standard - cat.3N to order from KUHN Parts)	Cat. 2 and 3N (pivoting lower links cat.2 as standard - cat.3N to order from KUHN Parts)	Cat. 2 and 3 with pivoting lower links	Cat. 2, 3N & 3	Cat. 2, 3N & 3	Cat. 3 with pivoting lower links
					Rigid or floating	Rigid or floating	Rigid or floating	Fixed or floating							Rigid or floating	Rigid or floating	Rigid or floating
					Mechanical	Hydraulic	Hydraulic
1090	-	1185	-	-					1130			1075		1380
										835 / 850	965 / 975
1100	1470	1195	1400	1580	2115	2275	2350	2900	1140			1085	1290	1405	2035	2185	2255
										1000	1170
					2340	2520	2625	3290							2260	2430	2530
1295	1740	1390	1635	1850					1335			1280		1650
1325	1790	1420	1685	1900	2390	2595	2700	3350	1365	1035	1200	1310	1575	1700	2310	2505	2605
								3550		-	1325	1435		-
		1550	1840	2095								-	1725	1870
1450	1950				2480	-	2860		1490						2400		2765
								As standard