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 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.
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.
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:
The GMD 355 mowers are fitted with the FAST-FIT quick release system that allows for 3 additional guarantees:
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.
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.
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.
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.
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.
|GMD 355 FF
|Working width (m)
|100 series with direct drive and reinforced outer housings
|Number of discs with wear skids
|Cutting height range with standard skids (mm)
|Gear train protection system
|PROTECTADRIVE safety system
|Outer link between bar and guard
|As standard - mechanical lock
|Angling of +35 degree to -25 degrees
|Headland turning position
|By integrated hydraulic cylinder
|Average swath width (m)
|Swath wheel position
|As standard - outer position
|3 point Cat. 2
|Adjustable hitch offset
|2 positions - 190mm offset
|Setting into transport position
|110 degree folding
|PTO speed (min-1)
|Theoretical tractor power requirement (kW/hp)
|Required tractor hydraulic connections
|Approx. weight (kg) fitted with FAST-FIT knives