(1 customer review)

FMHDH-78 Heavy Duty Flail Mower with Side Shift

Maximize your mowing with the FMHDH-78 Flail Mower, ideal for 45-80HP (PTO) tractors. Boasting a 78″ mowing width and 18″ hydraulic side shift, this mower effortlessly tackles grass, undergrowth, and prunings. Its high-quality forged steel flails and extra thick shaft ensure stability and strength.

A heavy-duty gearbox and electronically balanced shaft provide durable power and reduced vibration, enhancing maneuverability around obstacles. The hinged rear gate offers convenient cleaning, maintenance, and mulching capabilities for versatile land care.

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2 Year Warranty
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Victory 2023 Flail Mower Buyer’s Guide

FMHDH-78 Heavy Duty Flail Mower with 18″ Hydraulic Side Shift

Designed to tackle professional cutting of a wide array of vegetation including grass, heavy undergrowth, and tree prunings, our heavy-duty flail mower features high-quality forged steel 800-gram flails on an extra thick flail shaft (6 5/8″ diameter) for optimal stability and strength.


Ideal for tractors with a PTO performance of 45 – 80 HP and a PTO shaft speed of 540 RPM, the FMHDH-78 connects easily to CAT I/II 3-point hitches. It boasts an 18″ hydraulic side shift for precise mowing around obstacles. Your purchase is backed by a 2-year warranty and includes free shipping to your location, delivered via a liftgate truck (lower 48 States).

Key Features:
➤ Extra heavy-duty gearbox (50HP) for durability and power
➤ High-quality steel (Q345B) flail shaft with staggered flails for an unbeatable cutting performance
➤ Hinged rear gate facilitates easy cleaning and maintenance, and offers mulching or easy disposal options
➤ Electronically balanced shaft reduces vibration and wear on the bearings
➤ Hydraulic side shift up to 18″ allows for close mowing around fences, buildings, and walkways
➤ Four adjustable cutting height settings: ¾” | 1 ½” | 2 ⅜” | 3 ¼”
➤ Suitable for cutting 1 ½” – 2″ saplings

PTO shaft included          
Free Shipping          
2 Years Warranty

The FMHDH-78’s construction is robust and versatile. It features a heavy-duty gearbox and an extra thick rotor shaft with staggered flails for a superior cut. The electronically balanced shaft and hydraulic side shift ensure smooth operation and maneuverability. The hinged rear gate adds to the mower’s functionality, allowing for easy maintenance and adaptability to various mowing needs.

Safety Features:

➤ Independent gearbox operation for safe disengagement
➤ Front protection guard prevents debris ejection
➤ Heavy-duty construction ensures maximum safety and durability

Safety is paramount in the design of the FMHDH-78, featuring an independent gearbox for secure operation, a front guard for protection against debris, and a sturdy construction for overall safety and longevity.

ATTENTION: Machines are delivered partially assembled and do not contain any fuel, oil, or other operational fluids. Before using the machine, please read the user manual carefully to ensure safe and effective operation.

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Victory Tractor Implements

Proud supporters of the FFA

Working Width64 in.70 in.78 in.86 in.
Total Weight1,120 lb.1,190 lb.1,250 lb.1,320 lb.
Tractor Power (PTO)35 – 70 HP40 – 75 HP45 – 80 HP50 – 85 HP
PTO Speed (cw)540 RPM540 RPM540 RPM540 RPM
PTO Shaft length36″36”36”36”
Drive System4 Belts4 Belts4 Belts4 Belts
Flail Shaft Speed2,125 RPM2,125 RPM2,125 RPM2,125 RPM
Number of Flails22242628
Flails (forged steel)800 grams800 grams800 grams800 grams
Working Effic’ per Hr.1.0-2.5 ac.1.5-3.0 ac.2.0 – 3.5 ac.2.5 – 4.0 ac.
Dimensions (WxHxD)71x35x40 in.79x35x40 in.87x35x40 in.94x35x40 in.
Maximum Side Shift18″18”18”18”
Material Top Housing5 mm5 mm5 mm5 mm
Side Walls8 mm8 mm8 mm8 mm
Paint (yellow/green)Powder CoatPowder CoatPowder CoatPowder Coat
Flail Shaft MaterialQ345BQ345BQ345BQ345B
Shipping Box (LxHxW)74x28x40 in82x28x40 in90x28x40 in98x28x40 in

1 review for FMHDH-78 Heavy Duty Flail Mower with Side Shift

  1. John

    Great looking implement very well constructed and works very good

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FMHDH Series User Manual (opens in a new tab)

Additional information

Lift Gate Needed

No Liftgate (-$75), With Liftgate