Maximum output, optimal forage

Available in three widths (from 8.33 m to 9.93 m), they ensure maximum output without compromise on the quality of the harvested forage. They are intended for contractors, machinery cooperatives and large farms. To chose from: a conditioner with fingers or rollers.


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Areas to mow are increasingly becoming larger while optimal mowing periods are becoming more limited. What about the forage quality? When considering that lowering the level of impurities from 4 to 2 % per year, results in gaining 89€/ha/year*, it is essential that farms harvest forage without impurities. You can count on the performance, quality of work and reliability of our range. FC triple gang mowers help you to reach your goals in terms of output and quality - without compromise. FC triple gang mowers are available in three versions, designed for tractors from 120 hp: FC 8730 (8.33 to 8.73 m); FC 9530 (9.13 to 9.53 m); FC 10030 (9.53 to 9.93 m). Attach a FC 3125 F or a FC 3525 F at the front of the tractor to benefit from the same techniques as the rear unit!

Your Benefits

Maximum work output, optimal forage quality

The key to clean forage: LIFT-CONTROL hydro-pneumatic suspension

Lowering the level of impurities from 4 to 2 % per year, means gaining 89€/ha/year*. With the LIFT-CONTROL hydro-pneumatic suspension system, controlling the impurities is no longer a problem. It is far more than a suspension system, using an accumulator instead of the traditional spring.
The exclusive kinematics of the triple gang mowers in this range include a cylinder for the suspension of the mowing unit (1), a safety release cylinder (2), an accumulator with adjustable pressure (3) and a pivot point strategically positioned close to the machine’s centre of gravity (4).
The adjustment adapted by the suspension system limits the introduction of impurities in the forage and reduces the ground pressure of the cutter bar, therefore a reduction of the fuel consumption and skid wear, and the sward is preserved.
*Researchers from the Chamber of Agriculture of Weser Ems (Germany) have carried out a study in a german forage producing region. They compared 2 silages, one with a level of impurities of 2 % and the other with 4 % in order to determine the financial impact on a dairy farm. After having measured the nutritional value of the silage of poorer quality, they calculated the value of concentrates that needed to be added in order to reach the same level of milk production.

OPTIDISC ELITE: the unrivalled cutter bar

The new OPTIDISC ELITE cutter bar has been developped with farmers/users. The different disc spacing, large overlap areas and low mowing angle provide the required quality of cut. Fitted with this cutter bar including its latest upgradings, the triple FC 1030 ensures a clean and regular cut in all situations.

  •  Where the discs diverge, the spacing is reduced for a larger knife overlap area. Clean and regular cut even in short or light forage (A).
  •  Where the discs converge, the spacing is larger to facilitate the flow of forage which is quickly ejected rearwards: the mowing work is not affected (B).
  •  Overlap area nearly doubled for improved quality of cut on wet or sticky soils (or in the presence of molehills) or in heavy or lying forage, plant covers harvested in late autumn.
  • A smaller pitch angle: when mowing at a relatively flat angle, it prevents creating typical undulating mowing profiles. This development also promotes a smoother and faster regrowth and easier adjustment of the following machines.
  • New disc bearings with exclusive shape and fastening always ensure that knives are secured in case of shocks while giving them 360-degree freedom of rotation.

In hilly terrain, in wet conditions or sticky grass, soil can build up in front of the cutter bar, except with OPTIDISC ELITE! Its specific skids improve sliding and preserve the sward. Another benefit for forage quality, especially in difficult conditions.

Ground following with the travel range of the rear units

The rear units of the FC triple gang mowers follow nearly all ground contours, due to the following characteristics:

  • units with pendulum type articulation,
  • hydraulic side offset of 20 cm,
  • vertical offset of nearly 50 cm,
  • angular range of approximately 20° with an overlap of 50 cm.

Impressive figures that prove that KUHN has done everything possible to improve the quality of your forage!

Adjustable swath widths

The mowing unit swath width can be reduced to a minimum of 1.00 to 1.20 m. This is so the tractor wheels do not run over the already formed swath. The forage remains intact without introducing any impurities.

Time and money savings

Combined LIFT CONTROL and NON-STOP safety

Nobody can afford to damage their mower because of an obstacle or a wrong manoeuvre.
On hitting an obstacle, the concerned mowing unit pivots rearwards around an axis (4). At the same time, the oil is transferred to the LIFT-CONTROL suspension system cylinder. The resulting pressure increase facilitates mower lift in order to clear the obstacle. The mowing unit automatically returns to its initial position without stopping.

  • The safety system remains efficient even if the obstacle is hit by the mowing unit’s inner discs as the pivot point of the arm is far enough from the first discs (A).
  • The independent suspension of each mowing unit prevents the frontward acceleration of the opposite mowing unit when clearing the obstacle.
  • The hydraulic safety release can be adjusted according to mowing conditions. The cylinder can be fitted in two positions (arrows): the second position increases the power, required for the safety, for example during high speed work or in particularly difficult conditions.

Maximum reliability and stability

The cutter bar has been designed to cope well with obstacles. Being equipped with the PROTECTADRIVE safety system, in the event of a violent impact between a disc and an obstacle, the shaft holding the disc can shear just above the bearing thanks to a carefully dimensioned shear groove. Therefore the gear wheels are protected. In less than 15 minutes, the machine can back up and running with a low repair cost.
KUHN advantage: Disc-bearing stations are attached by long bolts that pass through the entire cutter bar. This eliminates any risk of the mounts being torn out of the cutter bar in the event of an impact. Top-of-the-range components strengthen the centre piece of the cutter bar:

  • Special disc-bearing station with a double row of angular contact ball bearings.
  • Large-diameter gearwheels in high-precision forged steel with 3 cogs engaged.
  • Forged and heat-treated discs.
  • Disc skids made from treated steel with the option of adding a bolt on protective layer.

In order to lengthen the machine’s service life, shock absorbers are integrated in between the cutter bar and chassis. The structure of the machine is less affected by impacts, especially when working at fast forward speeds.

Minimum maintenance

You will waste no time on maintenance.
The OPTIDISC cutter bar is an excellent example of added value created through the close collaboration between manufacturer and farmer. It is a solution that is totally adapted to operations and will save you time:

  •  Lubricated for life. No need to service the cutter bar.
  • FAST-FIT quick-release knife system, 100 % secure. A powerful leaf spring provides constant pressure on the knife retainer for extra safety. It takes just a few moments to replace the knives.

Maintenance is kept down, and is occasionally necessary for the drive system and the pivot points.

The FLEXPROTECT guard: save on repair costs

To avoid damage during mowing, around the edge of the fields or along trees, the outer FLEXPROTECT guard bends and then returns to its initial shape. This design avoids additional repair costs. Unfolding of the guards is controlled hydraulically.

Conditioning adapted to your needs

In difficult conditions: pivoting steel fingers

The 540 mm rotor with pivoting steel fingers offers exceptional conditioning capacity:

  • Uniform drying over a large widths even in difficult conditions.
  • The power requirement is limited for heavy or long forage.
  • The pivoting fingers avoid foreign bodies.
  • Forage delivered in swaths or widely spreading.

It can easily be adapted to the forage type with a two-speed central lever. Reducing the speed is ideal for delicate forage and to reduce the fuel consumption, for example for later mowing in lighter crops (755 min-1). The speed can be increased in dense forage (1000 min-1).
The conditioning rotor drive shaft is protected by a shear bolt therefore the machine and its drive are safe even in the event of impacts with foreign bodies.

For delicate crops: SQUAREFLEX rubber rollers

Integrating legumes in a ration reduces the quantity of concentrates to purchase.
A test carried out by Arvalis (the French agronomical institute) with the Chamber of Agriculture and the machinery cooperative FD in 2016 highlighted the drying patterns of different mower conditioners (finger or roller, in nylon or steel). The mower conditioner with a polyurethane roller came out top:

  • Saving of approximately 100 Euros / ha/cut with the rollers
  • Drying close to 80 % of DM from the second night comparing to the other methods which obtained this result after the third night.

Is this enough to justify the purchase of a roller conditioner?
Thanks to the specific tread of the polyurethane rollers, the plants are crimped through a regular movement. Their large diameter provide significant capacity to evacuate the forage rearwards and prevent its wrapping around them.
The pressure adjustment between the rollers is made via an easy-to-access adjustment screw. In addition, the gap between the rollers can be widened to let foreign bodies pass through.
On a mechanical level, the rear roller is driven by 2 gearboxes and a maintenance-free drive. The upper roller is driven by a special gear train. Benefit from a life-long perfect synchronisation and reduced maintenance!


Technical characteristics

FC 10030 D-FFFC 8830 D-FFFC 9530 D-FF
Working width (m) in combination with a front mower9.938.739.53
Overlap between front and rear units (cm)30-50 (FC 3525 DF)30-50 (FC 3125 DF) and 50-70 (FC 3525 DF)30-50 (FC 3125 DF) and 50-70 (FC 3525 DF)
Transport width (m)3.352.952.95
Number of discs with heat treated protection skids2 x 8 (2 x 3.5m)2 x 7 (2 x 3.10m)2 x 8 (2 x 3.5m)
Disc skid lining2 - as standard2 - as standard2 - as standard
Blade attachmentFAST-FIT quick releaseFAST-FIT quick releaseFAST-FIT quick release
Cutting height range with standard skids (mm)35 to 6535 to 6535 to 65
Gear train protection systemPROTECTADRIVE systemPROTECTADRIVE systemPROTECTADRIVE system
Ground followingpendulum-type articulationpendulum-type articulationpendulum-type articulation
SuspensionLIFT-CONTROL hydro-pneumatic suspensionLIFT-CONTROL hydro-pneumatic suspensionLIFT-CONTROL hydro-pneumatic suspension
Safety breakawayNon-stop safetyNon-stop safetyNon-stop safety
Conditioning systemPivoting steel fingers - adjustable conditioning plate with 5-position leverPivoting steel fingers - adjustable conditioning plate with 5-position leverPivoting steel fingers - adjustable conditioning plate with 5-position lever
Conditioner speed (min-1)755 or 1000 adjustable by selector lever755 or 1000 adjustable by selector lever755 or 1000 adjustable by selector lever
Conditioner driveby gearbox with anti-blocking safetyby gearbox with anti-blocking safetyby gearbox with anti-blocking safety
Overall swath width (min/max) approx. (m)2 x 1.85 / 2.42 x 1.45 / 2.12 x 1.85 / 2.4
Wide spreading systemas standardas standardas standard
Headland turning positionby hydraulic cylindersby hydraulic cylindersby hydraulic cylinders
Operation and function controlindividual lift of rear units and setting into transport positionindividual lift of rear units and setting into transport positionindividual lift of rear units and setting into transport position
Hitch3 point Cat. 3 and 4N (quick hitch cat. 3/4N compatible) 3 point Cat. 3 and 4N (quick hitch cat. 3/4N compatible) 3 point Cat. 3 and 4N (quick hitch cat. 3/4N compatible)
Machine parkingunfolded or folded on dedicated parking standsunfolded or folded on dedicated parking standsunfolded or folded on dedicated parking stands
PTO speed (min-1)100010001000
Overload protectionprimary PTO-shaft with torque limiterprimary PTO-shaft with torque limiterprimary PTO-shaft with torque limiter
Free wheelintegrated in the side gearboxintegrated in the side gearboxintegrated in the side gearbox
Theoretical tractor power requirement (kW/hp)162/221140/191154/210
Required tractor hydraulic connections2 DA valves (+1 DA optional for the tractor hydraulic top link)2 DA valves (+1 DA optional for the tractor hydraulic top link)2 DA valves (+1 DA optional for the tractor hydraulic top link)
Required tractor electrical connections1 x 7-pin plug1 x 7-pin plug1 x 7-pin plug
Road lights and signaling on rearas standardas standardas standard
Approx. weight (kg)326030303210