Available in a 3.1m cutting width, the GMD 3125 F disc mowers are ideal for hilly ground, and perfectly adapted to medium-sized farms and agricultural contractors.
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The hydro-pneumatic LIFT-CONTROL system with an accumulator replaces the traditional spring. The cutter is subject to rearward stress when working. When stress increases, the suspension system does too. This results in effective adaption to uneven ground. The sward is protected and less dirt gets into the swath.
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. The GMD 3125 F is 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:
Soil 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 gliding and preserve the sward. Another advantage for forage quality, especially in difficult conditions.
GMD 1025 F mowers have swathing drums on both sides that reduce the width of the swath by 20 cm compared to a classic swath. The wheels of the tractor no longer run over the crop.
The front mowers have two strong lower link arms mounted on large ball joints. The pivot points, tractor-side, are closer to the ground than the front ones. This dynamic loading creates better ground clearance and makes the mower unit more stable and effective in ground contouring, especially on hilly terrain. The mowing unit integrates pendulum-type articulation so it is more flexible and adapts to uneven plots. The pendulum-type movement provides a maximum tilt of 30°. Articulated arms allow for up to 70cm of vertical clearance.
The PROTECTADRIVE system is integrated into the cutter bar to withstand shocks and obstacles when mowing. In the event of a violent impact against one of the discs, the shaft holding the disc shears just above the bearing thanks to a carefully dimensioned shear groove. The gearwheels are protected. The machine is back up and running quickly and at a low repair cost.
The 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 case of impact.
Top-of-the-range components strengthen the centrepiece of the cutter bar:
In order to lengthen the machine’s service life, shock absorbers are integrated in the connection between cutter bar and chassis. The structure of the machine is less affected by impacts, especially when working at fast ground speeds.
The GMD 3125 F mower is equipped with the FAST-FIT quick-release knife system as standard which provides 3 extra guarantees:
Therefore when the disc is rotating it is not possible for the knife to be released. To minimise costs the knife retention pin can be replaced separately from the leaf spring.
Cutting quality remains excellent owing to the compactness of the cutter bar and the exclusive shape of the blades which rotate as close as possible to the protective skids.
The rubber side guard FLEXPROTECT can bend on impact without breaking or damaging the mower, before returning to its initial shape. This exclusive guard will save you money on repair costs.
Front mowers can be used in combination with rear GMD mowers. Overlap width can be modified by 19cm with the offset of the rear GMD 1011 series model to create a clean cut on slopes and bends. It is possible to obtain an overlap of between 240 and 645 cm depending on the rear hitch and working width of the front unit. This is an advantage when using wide-track tractors or with wide tyres.
Operating comfort is one of KUHN’s priorities. On GMD 3125 F and 3525 F mowers, ground pressure is quick and easy to adjust with hydraulic suspension that maintains it at the right level. The mowing units are lifted at headlands with an integrated cylinder so the tractor’s hydraulic front lift system is not used.
A transport width of 3.00m makes the machines easier to handle, especially on the road. Optional wing mirrors are available for safer road travel.
|GMD 3125 F-FF|
|Working width (m)||3.1|
|Transport width (m)||2.99|
|Cutter bar||OPTIDISC ELITE|
|Number of discs with wear skids||7|
|Disc wear skid||2 as standard|
|Blade attachment||FAST-FIT quick release|
|Cutting height range with standard skids (mm)||35 to 65|
|Gear train protection system||PROTECTADRIVE safety system|
|Ground following||Pivoting link rods with upward movement|
|Suspension||LIFT-CONTROL hydro-pneumatic suspension|
|Headland turning position||by hydraulic cylinder|
|Average swath width (m)||1 - 1.2|
|Swathing system||2 PTO driven drums|
|Hitch||3 point Cat 2|
|PTO speed (min-1)||1000 (left or right of rotation) - factory setting - to the right (seen from the tractor seat)|
|Overload protection||friction slip clutch|
|Free wheel||integrated into the side gearbox|
|Theoretical tractor power requirement (kW/hp)||32/43|
|Required tractor hydraulic connections||1 SA|
|Required tractor electrical connections||7 pin-plug|
|Road lights and signalling on front and rear||as standard|
|Approx. weight (kg)||1105|