Close this search box.

Terrain Implements AGL Series Flail Mowers

Price starts at $3,975

Terrain Implements
FH-AGL125 / FH-AGL145
New / Used:



Verger flail mulchers are Super Heavy Duty Mowers designed with heavy cutting blades that can chop heavy brush including grasses, debris, sticks, vines, branches, and other wooded materials up to 2” in diameter. The mower head is attached to a hydraulic arm allowing you to swing the mulcher beyond your tractors wheels. The head may be pivoted hydraulically up to 90 degrees for hedge or hillside work or down 60 degrees for ditch or bank work. Connect it to our optional 4-way hydraulic control valve with a hydraulic float and the mulcher will follow the contours of the terrain.A flail mower doesn’t throw grass, instead it cuts finely and leaves the cuttings on the ground where it was cut making it an excellent choice for those places where you could cause damage by throwing debris. Highway mowing and park maintenance often use flail mowers because they are less likely to throw objects during cutting.
Key Features:

  • 4.5” Diameter Rotor Shaft
  • Multiple Drive Belts Assure Power to the Blades
  • Under Deck Clump Busters
  • Standard 3-Pt Category I Hitch Mount
  • Shear Bolt PTO Shaft for Standard 1-3/8” 6-Spline PTO
  • PTO Driveline Included Free of Charge
  • Balanced Rotor and Shaft to Reduce Vibration & Reduce Bearing Wear
  • Powder Coat Paint Finish


These machines require a tractor that has 2 rear remote hydraulic ports (4 hoses), or a single hydraulic port (2 hoses) if you get the optional float or non-float valve controller.

Model FH-AGL125 FH-AGL145
Working Width 48″ (1,219 mm) 57″ (1,448 mm)
Overall Width 54″ (1,372 mm) 63″ (1,600 mm)
Required HP 20 HP (15 kW) 25 HP (19 kW)
Min Weight Tractor / Loader 3,400 lb. (1,542 kg) 4,000 lb. (1,814 kg)
Hitch Cat 1 Cat 1
Gear Box Rating 65 HP (48 kW) 65 HP (48 kW)
Pivot Offset 44″ (1,118 mm) Right 53″ (1,346 mm) Right
No. of Blades 20 Hammer Blades 24 Hammer Blades
Housing Thickness 3 mm 4 mm
Side Plate Thickness 1/4″ (6.35 mm) 1/4″ (6.35 mm)
Rotor Diameter 4″ (102 mm) 4″ (102 mm)
Rotor Shaft Diameter 4 1/2″ (114 mm) 4 1/2″ (114 mm)
Blade Swing 14″ (356 mm) 14″ (356 mm)
No. of Belts 3 Belts 3 Belts
3-point Connector Width 28″–29″ (711–737 mm) 28″–29″ (711–737 mm)
Driveline Type 6-Spline with Shear Bolt 6-Spline with Shear Bolt
Weight 675 lb. (306 kg) 751 lb. (341 kg)
Crated Weight 699 lb. (317 kg) 775 lb. (351 kg)

Additional Information

Pivot Offest Right Pivoting head has a full length roller to follow the ground contours & can be operated from below horizontal for banks & ditches, to vertical to trim hedges and small trees
Hydraulic Offset Swings out 44″, up 90 degrees, down 60 degrees or float The hydraulic cylinder permits the carrier frame to be moved under your command. This permits you to control the cutting position of the mower. Designed so that you can get around rows, trees, fence line, or whatever else is in your path. This is connected to a Remote Hydraulic designed to power the cylinder (also known as 2-way valve) or the rear remote on your tractor design to power the cylinder.
Hydraulic Requirements Hydraulic source must be constant flow for powering Control Valve. WE RECOMMEND use of Front Loader Style Control Valve with Float option. Float spool connected to the vertical pivoting cylinder will allow mower to float and naturally follow te ground contour.
Optional Grass “Y” Blades 40–48 Reversible “Y” Blades with precise blade overlap is important to achieve an even cut result
Hammer Blades 20–24 Hammer Blades allow you to cut & mulch wooded material up to 2″
Cutting Capacity 2″ Diameter With Hammer Blades
Cutting Height 1/4–6″ variable heights allow you to set correct height for your application
Housing Thickness 1/4″ — Resist denting & wear
Side Plate Thickness 1/4″ — Provides structural support
Reinforced Lift Point Standard Allowing you to raise & move mower without implement being attached to your tractor
Roller Diameter 4″ — Utilized to adjust cutting height, greaseable bearings and rounded at the edges to prevent gouging during turns with mud scraper for positive height control
Rotor Shaft Diameter 4 1/2″ — Large diameter protects against being bent by obstructions
Reverse Rotor Rotation Standard Shaft rotation is forward. The knives cut forward and up, picking up the bent over grass, pulling in the tall grass & weeds, cutting & shredding the material & discharging it to the rear
Blade Swing 14″ Large swing so that the blades build the required force needed for cutting
Balanced Rotor & Shaft Standard — Increases the bearing life, minimizes vibrations, audible noise, power losses and finally it results in increased quality of product
Front Flappers Standard — Prevents material from being thrown out from under the deck
Side Skids Standard — Replaceable; protects sides of the mower
Closed Rear Panel Standard — Prevents rocks & other material from being thrown from mower under force & provides greater mulching of mowed material
No. of Belts 3 — Multiple belts ensure a positive transfer of power to your flail mowers blades. Provides safety slip clutch point
External Belt Adjustment Standard — Easy access to loosen or tighten a few bolts to apply tension, loosen to change the belts
3-Pt Cat I Connection Width 26″ — Allows for easy connection to a wide range of Cat-I hitch tractors
Driveline Type 6-Spline w/ Shear Bolt — The shear bolt protects the mower from damage if the rotor becomes plugged. It is important to used the correct replacement bolt of proper size & strength to ensure that the shear device will function properly.
Bearings Easy Access/Greaseable — Great for ease of maintenance and availability should you need to replace the bearings
Gearbox Lubracation/Capacity 1 Quart SAE 80W – 90 Gear Oil

FLOAT AND NON-FLOAT CONTROLLER DESCRIPTION: The Float controller serves two functions. First, if your tractor has only one remote hydraulic port (2 hoses) you can use the float control as a splitter. 4 hoses from the machine plug into the controller and the controller is powered by the single port from your tractor. You can mount the control within reach of the tractor’s driver seat. The other function of this controller is you can plug the tilt cylinder into the float port and the mower will follow the contour of uneven ground.

Float controller can do the splitter function and float function.

The non-float controller can only be used for the splitter function.