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LIFT-CONTROL® suspension is exclusive in the market: it combines an ingenious mechanical device and nitrogen sphere suspension.

The LIFT-CONTROL® device:
It ensures permanent relationship between the cutter bar ground pressure and the force of inertia exerted on the cutter bar during work.
The basic principle is simple: the greater the friction on the cutter bar (and thus the drag), the more the cutter bar pressure is reduced.

This permanent and automatic adjustment of the pressure on the ground gives not just perfect contour following, but particularly, the highest quality forage. This way there is much less risk of contaminating the forage, the plant cover is preserved, and growth can occur in the best conditions.

Nitrogen spheres: Additional assets
Using a manometer, you can quickly and easily adapt the cutter bar ground pressure to the working conditions.
On wet ground, lighter ground pressure will prevent forage clogging and being contaminated. In dry conditions and on bumpy ground, higher ground pressure will ensure a clean, even cut.
Obviously, this optimum pressure setting is essential for forage quality, but it also impacts other aspects:

  • lower traction force
  • lower fuel consumption
  • less skid wear under the cutter bar


Pivoting connecting rods:

The highly specific kinematics of these machines includes 2 strong lower connecting rods mounted on extra-large ball joints. The connecting rods are attached to the tractor in a lower position than the one at the front. This creates dynamic stress during operations which produces a lift-effect on the mower unit and makes a considerable difference to ground contour following in hilly areas.

For excellent transversal stability at high mowing speeds: the two main lower connecting rods are widely spaced, providing sturdy support to the mower unit and making it stable on hard ground.

DIGIDRY pivoting steel fingers

The steel-finger conditioner provides uniform and accelerated grass dry-down, particularly in difficult conditions. It excels in operations with heavy, long or mature forage crops due to its high transport capacity.

This rotor is easily adjustable so that it adapts perfectly to operating conditions. Rotation speed (780 min-1 or 1000 min-1) adjustment is by simple lever. The conditioning plate has 5 positions, selected by lever.

Significant fuel saving is made, even in difficult operating conditions, as power requirement is low.

Cat. 2 linkage : KUHN has chosen to equip the new front-mounted machines with a conventional cat. 2 linkage system. It makes quite a difference in terms of comfort when coupling to a modern tractor. It is robust mechanically so can cope with stress caused by high driving speeds. It also provides more space for the passage of the drive shaft.

OPTIDISC cutter bar
The new OPTIDISC cutter bar is the result of KUHN's over 40 years experience in the field of disc mowers.
Cutting quality, reliability and reducing maintenance to a minimum were all important issues during the development and creation of this cutter bar.

Cutting quality
The centre distance is different between convergent and divergent discs:

    • More space in the overlap area of the converging discs: wider passage for cut fodder, better rear evacuation, the mower is not disturbed by the cut fodder.
    • Less space between divergent discs: increased overlap, improved cutting quality, particularly for light, short fodder.


Working width (m) 3.1
Transport width (m) 2.99
Cutterbars OPTIDISC
Number of discs with protecting skids 7 (treated steel)
Knife attachment FAST-FIT
Modular disc bearing stations removable from the outside As standard
Drive train protection PROTECTADRIVE system
Ground adaptation Pivoting connecting rods
Ground pressure LIFT-CONTROL hydro-pneumatic suspension
PTO speed (rpm) 1000
Swath width (m) 1.20 - 2.00 on average
Conditioning Pivoting steel fingers - Conditioning plate. 5 lever-adjustable positions
Conditioning rotor speed (rpm) 755 or 1 000 adjustable by lever
Weight approx. (kg) 1320
Minimum power requirement for PTO (kW) Approx. 50
Minimum power requirement for PTO (hp) Approx. 68