Power harrows HR 104-1004 & HRB 102-103

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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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 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.

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.

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.

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

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.

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	HR 304 M	HR 404 D	HR 404 M	HRB 202 S	HR 3004 D	HR 3004 NC	HR 3504 D	HR 3504 NC	HR 4004 D	HR 4004 NC	HR 4504 D	HR 5004 DRC	HR 4004 DR	HR 4504 DRC	HR 6004 DRC	HR 6004 DR B
2.50	3.00	3.00	3.00	4.00	4.00	2.10	3.00	3.00	3.50	3.50	4.00	4.00	4.50	4.95	4.00	4.50	6.00	6.00
2.60	3.08	3.12	3.12	4.11	4.11	2.19	3.08	3.08	3.50	3.50	4.10	4.10	4.55	5.00	4.08	4.67	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)	2.80 (2.52 with rollers raised)	2.80 (2.52 with rollers raised)
								184 / 250		184 / 250		184 / 250		184 / 250	184 / 250	184 / 250	265 / 350	265 / 350
73 / 100	73 / 100					59 / 80
103 / 140	103 / 140	139 / 190	139 / 190	139 / 190	139 / 190		184 / 250	184 / 250	184 / 250	184 / 250	184 / 250	184 / 250	184 / 250
37 / 50	44 / 60													96 / 130	81 / 110	88 / 120	130 / 180	130 / 180
						30 / 40
		59 / 80	59 / 80	73 / 100	73 / 100		59 / 80	59 / 80	66 / 90	66 / 90	73 / 100	73 / 100	81 / 110
														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	MULTIPLEX gearbox with lever gear selector	DUPLEX with gear selection by interchangeable gears	MULTIPLEX gearbox with lever gear selector	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	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
		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	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 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	1000	1000	1000	1000	1000	1000	1000	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)					253
410 / - (factory set / after gear reversal)	410 / - (factory set / after gear reversal)	270 (factory set) / 360	250 (factory set) / 306 (factory set) / 391	270 (factory set) / 360	250 (factory set) / 306 (factory set) / 391	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)
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
		10	10	14	14		10	10	12	12	14	14	16	16	13	15	20	20
		As standard - With spring safety	As standard - With spring safety	As standard - With spring safety	As standard - With spring safety
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 and 3 with pivoting lower links	Cat. 2 and 3N	Cat. 2 and 3N (pivoting lower links cat.2 as standard - cat.3N to order from KUHN Parts)	Cat. 2	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. 3 with pivoting lower links	Cat. 3 with pivoting lower links
														Rigid or floating	Rigid or floating	Rigid or floating	Fixed or floating	Rigid or floating
														Hydraulic	Mechanical	Hydraulic
		1090	1130	-	-	730	1185		-		-		-
835 / 850	965 / 975
		1100	1140	1470	1510		1195		1400		1580		1730	2350	2115	2275	2900	2900
1000	1170					900
														2625	2340	2520	3290	3290
		1295	1335	1740	1780		1390		1635		1850		2020
1035	1200	1325	1365	1790	1830		1420	1420	1685		1900	1900	2075	2700	2390	2595	3350	3350
-	1325																3550	3550
							1550	1520	1840	1840	2095	2095
		1450	1490	1950	1990									2860	2480	-
																	As standard	As standard