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Features

Built With Durability and Versatility

Rear view of a cab tractor using a flail mower attachment on a grassy hill in front of a yellow field and long, side-less farm building

The Frontier™ FL12 Series Flail Mower combines rugged durability for brush cutting with the finesse to leave turf grass looking polished. Its versatility allows operators to tackle diverse tasks from ditches to hedgerows with a single implement, reducing downtime and protecting tractors by clearing rough material on the first pass.

Hammer Blades for a Range of Conditions

Close‑up of a black forged steel flail mower hammer featuring a rectangular cutting edge and a circular mounting hole, shown on a white background

The FL10 Series models come standard with hammer blades. These are great all-purpose durable blades, providing aggressive cutting for tougher conditions while also delivering a high-quality cut on maintained fields.

Side Shift to Cut Hard-to-Reach Areas

Rear view of tractor mowing tall grass along a fence line with a rear‑mounted mower attachment.

The FL12 Series comes standard with mechanical side shift, giving it the ability to slide left of center (11- 33 in. [27.9-83.8 cm]) and right of center. Side shift is ideal for trimming along walls, buildings, trees with low-lying branches, fences, or orchards, making those hard-to-reach areas an easy cut.

Specifications

Rotor

Rotor Diameter5.5 in.
Rotor Diameter14 cm
Rotor Speed2354 rpm
Rotor Thickness0.39 in.
Rotor Thickness10 mm
Rotor Work Diameter17.42 in.
Rotor Work Diameter44.2 cm
Rotor Bearing TypeSpherical Roller 21309

Compatibility

Minimum Tractor Power Required50 hp
Minimum Tractor Power Required37.3 kW
Maximum Tractor Power Required80 hp
Maximum Tractor Power Required59.7 kW
Minimum Tractor Weight3750 lb.
Minimum Tractor Weight1701.8 kg
Center of Gravity (COG)27 in.
Center of Gravity (COG)68.6 cm

Hitch

Hitch Type3-point
iMatch CompatibleNo
Hitch Category1, 2
Hitch PositionOffset
Hydraulic OffsetOption

Drives

Gearbox Speed540 rpm
Drive Belts3 - SPB Lp=1320
Gauge Roller Diameter6.62 in.
Gauge Roller Diameter16.8 cm

Dimensions

Cutting Capacity1.57 in.
Cutting Capacity4 cm
Cutting Height1.18/1.96/3.14 in.
Cutting Height3/5/8 cm
Overall Height33.8 in.
Overall Height85.9 cm
Overall Length46 in.
Overall Length116.8 cm
Cutting Width91 in.
Cutting Width231.1 cm
Overall Width96.5 in.
Overall Width245 cm
Weight1366 lb.
Weight620 kg

Miscellaneous

Frame Thickness0.16 in.
Frame Thickness4 mm
Side Frame Thickness0.31 in.
Side Frame Thickness8 mm
Rear Roller Bearing TypeD40 D80 B23 62208 2RS2
Belt AdjustmentScrew adjustment
Primary Pulley Diameter9.8 in.
Primary Pulley Diameter250 mm
Secondary Pulley Diameter7.5 in.
Secondary Pulley Diameter190 mm
Hood Height19.68 in.
Hood Height50 cm
Side Case Height24.4 in.
Side Case Height62 cm
PTO Yoke Height18.9 in.
PTO Yoke Height48 cm

Blades

Blade TypeHammers (standard)
Number of Hammers26
Type of Blades/Hammers8/10
Blade Tip Speed10039 fpm
Blade Tip Speed3059 m/min