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.
The new OPTIDISC ELITE cutter bar was developed with farmers. Variable spacing between the discs, large overlap zones and the reduced angle of the OPTIDISC cutter bar will provide you with the quality you need. FC 1030 TRIPLES are equipped with this cutter bar and its latest upgrades that guarantee a clean cut at all times. The OPTIDISC ELITE cutter bar includes exclusive features:
Earth can build up in front of a cutter bar on hilly plots or in wet and sticky conditions, but not with the OPTIDISC ELITE cutter bar! It has specially designed skids to improve sliding and preserve the sward. Another advantage for forage quality, especially in difficult conditions.
The rear units of the GMD triple gang mowers follow nearly all ground contours, due to the following characteristics:
Impressive figures that prove that KUHN has done everything possible to improve the quality of your forage!
Nobody can afford to damage his 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 the mowing unit to lift in order to clear the obstacle. The mowing unit automatically returns to its initial position without stopping .
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.
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:
Maintenance is kept down, and is occasionally necessary for the drive system and the pivot points.
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.
For a thorough clean cut on slopes and during tight turns, the mowing units can be offset sideways by 20 cm to increase the overlap between the front and rear units.
According to the combination model, overlaps vary from 30 cm to 70 cm.
The driver can modify the working width from the tractor cab. This feature is a real asset for tractors with larger wheels (GMD 9530 -10030).
The possibility of individual lift of the two rear units is a significant advantage when mowing triangular-shaped plots. Manoeuvres are easier and faster to perform. The mowing unit is put into transport position via a double acting valve.
On the GMD 8730, you can chose between three assembly positions (1, 2, 3) of the mowing units on the legs according to the working conditions (slopes, plot size, width of the front unit…). This way, it is possible to adapt the working width or a significant overlap between the front and rear units.
The GMD triple gang mowers in this range stand out for their compact dimensions when folded for storage.
The machines can be store vertically without any additional equipment.
This means they can be stored in most sheds.
|GMD 8730-FF||GMD 9530-FF|
|Working width (m) in combination with a front mower||8.30-8.50-8.80 depending on the overlap chosen||9.53-9.13 depending on the overlap chosen|
|Transport width (m)||2.99||2.95|
|Transport height (m)||3.65-3.75-3.90 depending on the overlap chosen||3.92|
|Overlap between front and rear units (cm)||54-44-29 (with front unit of 3.10m)||30-50 (GMD 3125F) / 50-70 (GMD 3525F)|
|Cutter bar||OPTIDISC ELITE||OPTIDISC ELITE|
|Number of discs with wear skids||2x7||2x8|
|Disc wear skid||2 - as standard||2 - as standard|
|Blade attachment||FAST-FIT quick release||FAST-FIT quick release|
|Cutting height range with standard skids (mm)||35 to 65||35 to 65|
|Gear train protection system||PROTECTADRIVE safety system||PROTECTADRIVE safety system|
|Ground following||Pendulum articulation||Pendulum articulation|
|Suspension||LIFT-CONTROL hydro-pneumatic suspension||LIFT-CONTROL hydro-pneumatic suspension|
|Safety breakaway||Non-Stop safety||Non-Stop safety|
|Headland turning position||Built in hydraulic control - simultaneous or separate left/right lift of cutter bars||Simultaneous or separate left and right lift owing to the control box - as standard|
|Average swath width (m)||2 x 2.40||2 x 2.80|
|Swath wheel position||Outer||Outer|
|Hitch||3 Point - Cat 2||3 Point - Cat 2|
|PTO speed (min-1)||1000||1000|
|Free wheel||As standard on side gearboxes||As standard on side gearboxes|
|Theoretical tractor power requirement (kW/hp) for the triple combination||90/122||99/135|
|Required tractor hydraulic connections||1 SA + 1 DA - Also plan requirement for the front machine||1 SA + 1 DA - Also plan requirement for the front machine|
|Required tractor electrical connections||1 x 7 pin and 1 x 3 pin ISO plugs||1 x 7 pin and 1 x 3 pin ISO plugs|
|Road lights and signalling on rear||As standard||As standard|
|Approx. weight (kg)||1910||2300|