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Kuhn HRB 403 D power harrows are a part of the 102 D Series, which are designed for farming operations that require intensive annual use in moderate to heavy soils. They are designed to complement the most commonly sold tractor sizes with horsepower ratings of 60 to 160 HP. The HRB 103 D power harrow series is available in working widths of 9'10", 11'6", and 13'1" and these harrows perform very well for producers in crops where proper seedbed preparation is essential.

These power harrows feature a dependable gearbox, heavy-duty frame construction, all gear drive and forged tines. The vertical axis mixing action preserves soil moisture and creates an ideal environment for seed germination. The Duplex gearbox, with interchangeable gear sets, provides numerous speeds to best match field conditions and consistently prepare an ideal seedbed for virtually any specialty crop. This unit will save time and cost, and also reduce soil compaction, due to one pass cultivation.


Reliable Rotor Drive

Rotors are driven by large-diameter gears. Power transmission to the blades is ensured by numerous teeth fully engaged at all times. The rotor drive design has contributed to build the highly reliable reputation of Kuhn power harrows.

Compact and Robust Housing

The casing, bearings and tine holders form a compact and very robust unity, reducing twisting forces on the housing. The small distance between casing and tine holders prevents stones from getting jammed and the soil flow is directed completely towards the blades’ working area so that all soil is worked, ensuring a constant high level of work quality.

Heavy-Duty Central Frame with Reinforced Articulations

The central frame is made from heavy box sections which ensure increased rigidity and high resistance to bending and torsion. For further simplicity and comfort, HR 1004 DRC models are fitted with hydraulic locking in transport position. Each half-harrow is connected to the central frame by a heavy pin. This assembly provides resistance to the highest loads.

Blade Holder Orientation

Kuhn power harrow blade holders are positioned to provide a progressive crumbling of the soil by the blades. This precise and exclusive layout prevents the harrow from excessive vibrations while at the same time reducing the power consumption.

Depth Control

Roller height is easily adjusted with a simple to use multi-hole and stop-pin selector. The HRB 1004 D Series comes with a large choice of rollers to meet your depth control needs. For dry, non-sticky soils, the HRB 1004 D Series can be equipped with the Crumbler or Maxicrumbler roller. For compact, silty or sticky soils the Packer 2 or Maxipacker rollers would be most efficient. The Steelliner or Packliner rollers are also available on the HRB 1004 D Series power harrows.


Working width (m) 4
Working width (feet) 13'1"
Gearbox Duplex
Minimum power requirement for PTO (kW) 66
Minimum power requirement for PTO (hp) 90
PTO speed (rpm) 1000/750/540
Maximum authorised tractor power (kW) 118
Maximum Authorised Tractor Power (hp) 160
Transmission With cam type cut-out clutch
Weight with Maxicrumbler roller (lb) 3042/1380
Weight with Packer PK2 roller (lb) 3638/1650
Weight with Maxipacker roller (lb) 3748/1700
Weight with cage roller (lb) 3097/1405


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