Defy the laws of the terrain!

The new GMD Series 105 vertical folding disc mowers with a working width of 2.80 to 3.50 m are ideally suited to medium-sized farms. Enjoy a clean, regular cut as well as the reliability and performance of the cutter bar.


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With a working width between 2.80 and 3.50 metres, the new GMD 105 series mowers are intended for farmers seeking improved ground following and forage ejection on uneven terrain. Their high-speed working capacity and low power input make them machines designed to swallow hectares at a lower cost without impacting mowing quality. Their compactness makes them perfectly compatible with light tractors. They are equipped with the 100 series cutter bar and various equipment that provide all the reliability needed for mowing. The GMD 105 series comes in 3 models: GMD 285 (2.80 m), GMD 315 (3.10 m), GMD 355 (3.50 m).

Your Benefits

Impeccable cut quality!

New CONSTANT FLOAT suspension kinematics

The new CONSTANT FLOAT suspension kinematics provides the mower unit with a suspension system worthy of a pendulum-type articulation. It is also extremely stable, so cut height is regular, even at high speeds, and ground following is optimum. The sward is protected, even when it is wet. Suspension adjustment is quick and simple: no tools are required. With a significant tilt angle ranging between -25/+35 degrees, the mower follows the ground in the most extreme situations with great ease. This wide range of tilting makes it possible to mow embankments.

Direct drive via the first disc

Direct drive of the cutter bar through the first disc is an additional asset on this machine. With this high clearance, forage flows smoothly through to the rear of the machine, especially on uneven plots and when cutting the swath again. A swath wheel is mounted behind the outer disc cone and separates cut from uncut crop allowing the right tractor wheels to drive over the ground instead of the previously cut crop. The swath is regular, well shaped and easy to pick-up.

Retain the resale value of your machine!

Should an obstacle be struck, the safety breakaway causes the mower unit to swing slightly backwards. The pivot release mechanism is offset to the extreme left of the machine and with 22° displacement to the rear. The machine absorbs shocks better in the event of impacting an obstacle. The impact of the shock is significantly reduced. The system is simply reset by backing up.

A robust design

Maximum reliability with the 100 series cutter bar

The cutter bar was designed to withstand obstacles. With the PROTECTADRIVE safety system, in the event of a very violent impact of a disc against an obstacle, the shaft supporting the disc shears above the bearing thanks to a pre-defined shearing groove. The toothed wheels are protected. In less than 15 minutes, the machine is back up and running at a very low repair cost.
High-end components strengthen the core of the cutter bar:

  • Cutter bar with special double-row angled contact ball bearings.
  • Large-diameter, high-precision forged steel toothed wheels with 3 teeth intermeshing.
  • Specific design of the casings to avoid any particular stress on the fastening screws.
  • Knife attachment in a forged steel cup, complet disc coating to reduce the risk of wear.

FAST-FIT: a 100% safe fastening

The GMD 355 mowers are fitted with the FAST-FIT quick release system that allows for 3 additional guarantees:

  •  A powerful leaf spring provides constant pressure to the knife’s retainer: no reduction of the knife rotation speed.
  • The knife retaining pins are also equipped with a shoulder to provide an additional level of securement.
  • The leaf spring can only be depressed to remove the knife at one point when the knife is centered over the shoe. Thus 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 move as close as possible to the protective skids.

Designed to last!

All GMD 355 mowers are fitted as standard with a reinforced outer link between the cutter bar and the frame. With two built-in rubber mounts, this device ensures good hold in difficult working conditions or when travelling on poorly maintained paths. This outer link combined with the new direct cutter bar drive ensures performance and optimal durability even in the most difficult conditions.

Comfort of use and fast settings

Coupling compatibility

To ensure a full cutting width when the mower is coupled to tractors with variable wheel track width, GMD 355 mowers can be offset by 190 mm.

Preserve your swaths during manoeuvres

The large clearance in headland turn position (about 50 cm on the inner side) is appreciable in hilly regions. You benefit from excellent ground clearance during U-turns and the swaths are preserved. For more comfort and less mechanical stress, a hydraulic limiter gently stops the lift in the upper position. There are no jolts when the machine is lifted.

Gain time during the season

The disc bearing can be removed or installed quickly and easily on the 100 series cutter bar. A possible repair is carried out from the outside and at a lower cost. The machine’s downtime is reduced. Access to the cutter bar is extremely easy thanks to the double cover opening and does not require tools. Replacing knives, maintaining or cleaning the machine is greatly facilitated.


Technical characteristics

ModelsGMD 285 FFGMD 315 FFGMD 355 FF
Working width (m)
Cutter bar100 series with direct drive and reinforced outer housings100 series with direct drive and reinforced outer housings100 series with direct drive and reinforced outer housings
Number of discs with wear skids789
Cutting height range with standard skids (mm)30-5030-5030-50
Gear train protection systemPROTECTADRIVE safety systemPROTECTADRIVE safety systemPROTECTADRIVE safety system
Outer link between bar and guardAs standardAs standardas standard
Ground followingSide articulation Side articulation Side articulation
SuspensionBy springBy springBy spring
Safety breakawayAs standard - mechanical lock As standard - mechanical lock As standard - mechanical lock
Mowing angleAngling of +35 degree to -25 degreesAngling of +35 degree to -25 degreesAngling of +35 degree to -25 degrees
Headland turning positionBy integrated hydraulic cylinderBy integrated hydraulic cylinderBy integrated hydraulic cylinder
Average swath width (m)2.002.402.80
Swath wheel positionAs standard - outer positionAs standard - outer positionAs standard - outer position
Hitch3 point - Cat 23 point - Cat 23 point Cat. 2
Adjustable hitch offset2 points - 190mm offset2 points - 190mm offset2 positions - 190mm offset
Setting into transport position110 degree folding110 degree folding110 degree folding
PTO speed (min-1)540540540
Free wheelAs standardAs standardas standard
Theoretical tractor power requirement (kW/hp)27/3730/4134/46
Required tractor hydraulic connections1 SA1 SA1 SA
Approx. weight (kg) fitted with FAST-FIT knives795845875