Power harrows HR 1040 R

Controlled power!

These foldable power harrows offer working widths from 5 to 8 m and are adapted to high-powered tractors. Maximum power varies between 350 and 500 hp depending on the model.

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Benefits
Equipment
Specifications
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Seedbed preparation tools must provide high work output while operating smoothly and non-stop for as long as necessary. Power harrows in the HR 1030 R, HR 1040 R and HR 1042 R range are the result of outstanding workmanship. Just take a look inside the machine to see the high quality standard. The clever design of the rotor drive and the robust gearbox ensure a very long service life and low maintenance costs.

Increase output and stay in control

Central gearbox equipped with an oil cooling system and integrated pump.

The perfect combination for powerful tractors

HR 1030 R, HR 1040 R and HR 1042 R foldable power harrows, with working widths of 5 to 8 m, are an efficient solution for field-crop farms looking for high output. They are designed for high-powered tractors. Maximum power varies between 350 and 500 hp depending on the model.

Compatible with different hitch types

These power harrows are compatible with cat. 3 and 4N hitches (and 4 for HR 1040 R models). The central gearbox is positioned towards the rear to increase the length of the PTO shaft and reduce working angles: an asset for tractors equipped with large-diameter wheels.

HR 1040 R power harrows are widely compatible with different couplings

Greater output, still in control!

An oil cooler protects the central gearbox against overheating. The oil cooler is insensitive to dust and lengthens the life of the oil for less frequent changes. With its integrated pump, it is activated automatically with the PTO, the user does not need to switch it on! The entire drive train is protected against overloads by one or two torque limiters (depending on the model). The KTS 20 terminal, which comes as standard on HR 1040 R and HR 1042 R power harrows and as an option on HR 1030 R, enables the parameters to be monitored from the tractor cab.

Quick and easy adaptation to working conditions

Cross-section view of the KUHN power harrow rotor

Quick and easy adjustment

One plot can contain different soil textures. To produce optimum output, the machine needs to be adjusted quickly and easily. Working-depth and levelling-bar adjustment on HR 1030 R power harrows is either centralised manual or hydraulic directly from the tractor cab. These adjustments adapt the power requirement. The hydraulic settings come as standard on power harrows in the HR 1040 R and HR 1042 R ranges. A graduated scale is visible, for your comfort, from the driver's seat.

In rigid or float position

Composed of two half-harrows, these power harrows can work in rigid or float position. In the latter position, each half-harrow can raise 2.5°, independently, to follow the ground contours. Both half-harrows are positioned very closely to each other to avoid the formation of non-crumbled ridges between them. An optional central share can be placed in front of the gap between the two half-harrows for a perfect result over the whole working width.

Made-to-last and robust DURAKUHN blades as standard on HR 1040 R

Optimum crumbling

The Duplex gearbox has changeable gearwheels so the speed of the rotos can be adapted to working conditions and desired results. A wide range of rotation speeds enables adaptation to different conditions.

A wide choice of rollers for efficient tamping

Whether your soil is light, heavy, dry, or wet, KUHN has the solution! HR 1030 R, HR 1040 R and HR 1042 R power harrows can work with MAXICRUMBLER (Ø 520 mm), MAXIPACKER (Ø 535 mm) and MEGAPACKER (Ø 590 mm) rollers. The MAXICRUMBLER roller is light and used mainly for soil preparation in the spring or summer on dry or slightly sticky soil. The versatile MAXIPACKER is capable of working in wet and sticky conditions. The MEGAPACKER is recommended for light, chalky, chalky-clay and silt-clay soils as its large diameter gives it excellent bearing capacity. It is easier to pull in light soils and tamps the land efficiently. HR 1040 R power harrows are also compatible with the STEELLINER (Ø 550 mm) roller.

Perfect levelling

The angle of the levelling bar on HR 1040 R power harrows can be adjusted to adapt to working conditions and to manage fuel consumption more easily. Three positions are available:

close to the rotors for intensive work in very heavy soils,

tilted to the rear for light seedbed preparation,

intermediate position.

The levelling bar is indexed to the roller for quick and independent adjustment of working depth.

Robust design and time savings on maintenance

Perfect adaptation to varying soil conditions thanks to the hydraulic settings.

Perfect adaptation to varying ground conditions

The design of the high-strength steel housing and the lubed-for-life gears and bearings make KUHN maintenance-free rotos highly resistant. The rounded shape of the forged and treated steel gears eliminates any overhang on the bearings. The large bearings are secured by a calibrated spacer. They are aligned and secured perfectly to protect them against wear and deformation. The conical centring of the blade holder prevents any play in the splines.

FAST-FIT DURAKUHN tines as standard

These power harrows are equipped with carbide-coated DURAKUHN tines, as standard, for extra resistance to impacts and wear. For an even longer life, DURAKARB tines, with tungsten carbide plates, are available as an option. The FAST-FIT attachment system reduces replacement time to a minimum. The angle of the levelling bar has three positions for precise adjustment of crumbling:

close to the rotors for intensive work in very heavy soils,
tilted to the rear for light seedbed preparation.

These different settings also improve fuel consumption.
In addition, the levelling bar is indexed to the roller for quick and independent adjustment of working depth.

Easier maintenance and comfort on the road guaranteed

Equipment

A wide choice of equipment to meet your needs

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.

KTS 20 monitoring terminal as standard

Installed in the cabin, the KTS 20 monitoring terminal continuously monitors the temperature as well as the rotation of the three machine gearboxes. As soon as a torque limiter or an overheat sensor is activated, the driver can react rapidly and avoid a failure. This represents savings of nearly 900 €/day: the equivalent of the loss of revenue due to a one-days downtime.

Carrying frame

The HR 1040 R power harrows fold hydraulically and lock in transport position. A standard carrying frame fitted with twin pivoting wheels of large diameter provide a high comfort of driving on roads. No braking system is required and even transport with medium-power tractors is compliant with road regulation.

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.

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.

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.

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.

Specifications

Technical characteristics


Working width approx. (m)
Transport width (m)
Transport height
Maximum tractor power (kW/hp)
Minimum power requirement (kW/hp)
Required tractor hydraulic equipment
Gearbox
Type of side gearbox
PTO safety
PTO speed (min^-1)
Rotor speed (min^-1)
Number of rotors
Working depth adjustment
Levelling bar
Side deflectors
Hitch
Working position
Transport locking position
Control box
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 Steelliner roller 12.5 cm row spacing Ø 550 mm
Approx. weight (kg) with Steelliner roller 14.3 cm row spacing Ø 550 mm

HR 5030 R	HR 6030 R	HR 6042 R	HR 6040 R	HR 7040 R	HR 8040 R
5.00	6.00	6.00	6.00	7.00	8.00
3.00	3.00	3.00	3.00	3.00	3.00
			3.25	3.75	4.25
260 / 350	260 / 350	340 / 460	336 / 460	345 / 480	365 / 500
110 / 150	130 / 180	150 / 200	146 / 200	161 / 220	175 / 240
1 DA	1 DA	1 DA for folding and locking for transport 1 DA for working depth adjustment 1 DA for the levelling bar	1 DA for the levelling bar 1 DA for the working depth 1 DA for folding, locking for transport and locking of transport frame	1 DA for the levelling bar 1 DA for the working depth 1 DA for folding, locking for transport and locking of transport frame	1 DA for the levelling bar 1 DA for the working depth 1 DA for folding, locking for transport and locking of transport frame
Reinforced central gearbox with oil cooler DUPLEX side gearboxes	Reinforced central gearbox with oil cooler DUPLEX side gearboxes	Reinforced central gearbox with oil cooler DUPLEX side gearboxes	Reinforced central gearbox with oil cooling system Side DUPLEX gearboxes	Reinforced central gearbox with oil cooling system Side DUPLEX gearboxes	Reinforced central gearbox with oil cooling system Side DUPLEX gearboxes
			Walterscheid P600	Walterscheid P600	Walterscheid P600
Cam-type cut-out clutch	Cam-type cut-out clutch	Cam-type cut-out clutch on each half harrow	Cam type cut-out clutch on each half-harrow	Cam type cut-out clutch on each half-harrow	Cam type cut-out clutch on each half-harrow
1000	1000	1000	1000	1000	1000
336 - 291 (after inversion / 29-27 gearwheels)	336 - 291 (after inversion / 29-27 gearwheels)	349 - 274 (after inversion / 35 - 31 gearwheels)	274 - 349 (after inversion / gearwheels 31-35)	274 - 349 (after inversion / gearwheels 31-35)	274 - 349 (after inversion / gearwheels 31-35)
16	20	20	20	24	28
			Hydraulic	Hydraulic	Hydraulic
			As standard - with hydraulic adjustment	As standard - with hydraulic adjustment	As standard - with hydraulic adjustment
Adjustable - With spring safety	Adjustable - With spring safety	Adjustable - With spring safety	Adjustable - with spring safety and double arm	Adjustable - with spring safety and double arm	Adjustable - with spring safety and double arm
Via yokes - Cat. 3 / 4N	Via yokes - Cat. 3 / 4N	Via yokes - Cat. 3 / 4N	Cat. 3, 4 and 4N with yokes	Cat. 3, 4 and 4N with yokes	Cat. 3, 4 and 4N with yokes
Rigid or floating (0 /+2.5°)	Rigid or floating (0 /+2.5°)	Rigid or floating (0 /+2.5°)	Rigid or floating (+/- 2.5°)	Rigid or floating (+/- 2.5°)	Rigid or floating (+/- 2.5°)
Hydraulic	Hydraulic	Hydraulic	Hydraulic	Hydraulic	Hydraulic
		As standard - KTS 20 - Gearbox temperature and cut-out clutch activation monitoring	As standard - KTS 20 monitoring of gearbox temperature and safety clutch release	As standard - KTS 20 monitoring of gearbox temperature and safety clutch release	As standard - KTS 20 monitoring of gearbox temperature and safety clutch release
			4015	4350	4682
3160	3545		4515	4930	5340
		4030	4600	5030	5464
			4700		5576
			4700	5130	5576