40-in. FMR Flail Mower
The Bobcat 40-in. FMR flail mower attachment is ideal for mowing and land-clearing applications such as cleaning ditches, hillsides, utility right-of-ways and riverbanks, as well as maintenance for parks and recreational trails.

Photo courtesy of Bobcat
The Bobcat 40-in. FMR flail mower attachment is available for use with Bobcat E63, E80, and E85 excavators for mowing and land-clearing applications such as cleaning ditches, hillsides, utility right-of-ways and riverbanks, as well as maintenance for parks and recreational trails.
The flail mower has multiple safety features, such as a side safety chain within the housing unit to help deflect and contain debris that could be thrown during operation. Additionally, a rotor brake stops the flail mower from full speed in seven seconds or less when the flail mower hydraulics are deactivated.
The flail mower’s triple-knife design allows for a smooth cutting motion to rip through hard and soft woods, vines, grass, and brush. The compact deck allows the flail mower to manage varying ground contours and hard-to-reach places, maintaining surface contact for efficient cutting.
The direct-drive motor excels in aggressive cutting applications, providing a balance between torque and rpm. The X-Change attachment mounting system makes it easy to connect the 40-in. FMR flail mower to the E63. A pin-on mounting system or optional pin-grabber quick coupler option are available for connecting the 40-in. FMR flail mower to the E80 and E85 excavators.
To help keep up with various land-clearing jobs and to reduce machine downtime, the 40-in. FMR flail mower features reversible flails that provide bi-directional rotation by switching the hydraulic hoses at the drive motor; a rubber torsion disc that absorbs stress forces encountered during operation; and heavy-duty flanges that protect the drive train from dust and debris, and prevents wires from damaging the drive train mechanism.
QuickLook: Bobcat 40-in. FMR flail mower
Weight with X-Change system mount (E63): 881 lb. (400 kg)
Weight with pin-on mount (E80 and E85): 876 lb. (397 kg)
Working width: 40 in. (1016 mm)
Overall width: 60.4 in. (1524 mm)
Cutting capacity: 4 in. (102 mm)
Hydraulic flow: 18.4 – 31.7 gpm (69,7 – 120 L/min.)
Number of knives: 36
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