(3 customer reviews)

Victory FMHD-78 Heavy Duty Flail Mower

Transform land maintenance with the FMHD-78 Flail Mower. Ideal for 45-75HP tractors, it excels in cutting grass, undergrowth, and prunings with its 800-gram flails and 6 5/8″ diameter flail shaft.

Features dual CAT I & II compatibility, a 78″ mowing width, and an 18″ adjustable side shift for precision. Its heavy-duty gearbox and electronically balanced shaft ensure durability and reduced vibration, while the hinged rear gate aids in easy cleaning. Perfect for achieving a superior cut with minimal effort.

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2 Year Warranty
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Victory 2023 Flail Mower Buyer’s Guide

FMHD-78 Heavy Duty Flail Mower

Our heavy-duty flail mower is designed for the professional cutting of grass, heavy undergrowth, and tree prunings. Equipped with 800-gram flails and an extra-large diameter flail shaft (6 5/8″ diameter), it’s engineered for both durability and superior performance.


Featuring dual CAT pins fitting both CAT I & CAT II 3-point hitches, the FMHD-78 is compatible with tractors having a PTO performance of 45 to 75HP and a PTO shaft speed of 540 RPM. With high-quality materials and craftsmanship, each purchase is backed by a 2-year warranty and includes free shipping to your location, delivered from a liftgate truck (lower 48 States).

Key Features:
➤ Rugged construction with an extra heavy-duty gearbox (50HP)
➤ Hinged rear gate for easy cleaning and maintenance
➤ Staggered flails on the rotor shaft for a superior cut
➤ Electronically balanced shaft to reduce vibration and wear
➤ Adjustable side shift with 5 manual settings for precision mowing

PTO shaft included          
Free Shipping          
2 Years Warranty

The design of the FMHD-78 focuses on robust construction and functional versatility. Its heavy-duty gearbox ensures lasting durability under tough conditions, while the hinged rear gate facilitates easy maintenance and cleaning. The mower’s staggered flails achieve a clean, superior cut across various terrains, complemented by an electronically balanced shaft that minimizes vibration, enhancing operator comfort and machine longevity. The adjustable side shift settings allow for precise mowing near obstacles, making the FMHD-78 adaptable to diverse landscaping needs.

Safety Features:

➤ Independent operation of the gearbox
➤ Front protection guard to prevent debris ejection
➤ Heavy-duty construction for enhanced safety

Safety is paramount in the design of the FMHD-78, featuring an independent gearbox that ensures the mower can operate securely even when the tractor’s PTO is disengaged. The inclusion of a front protection guard shields against debris being thrown towards the operator, while the mower’s heavy-duty construction provides added durability and protection. Furthermore, the ease of replacing counter blades not only simplifies maintenance but also significantly reduces the risk of clogging, maintaining operational safety and efficiency.

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

This comprehensive approach to both performance and safety makes the FMHD-78 an essential tool for those requiring a high-quality, reliable flail mower for extensive land management tasks.

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Victory Tractor Implements

Proud supporters of the FFA

Working Width64 in.70 in.78 in.86 in.
Total Weight1,034 lb.1,101 lb.1,168 lb.1,235 lb.
Tractor Power35 – 60 HP40 – 65 HP45 – 75 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 Effi’ 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.
Flail Shaft Diameter6 5/8 in.6 5/8 in.6 5/8 in.6 5/8 in.
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 in.82x28x40 in.90x28x40 in.98x28x40 in.

3 reviews for Victory FMHD-78 Heavy Duty Flail Mower

  1. William

    These folks are prompt and knowledgeable about what they sell.
    This mower is a beast!!! It has made a night and day difference in 20 acres that was tearing up a john Deere RC72. I will be purchasing one of their tillers as soon as i can.
    Delivery, customer support (not for anything on them it was my ignorance) and especially the equipment has been 10 stars

  2. Jim Geyer

    Very good product had a problem it was corrected immediately I am very pleased with the machine will definitely use victory again

  3. Keith R

    I’m very pleased with it so far. It runs very smooth and quite for such a big mower. It also slides left far enough to cover my 72” tractor width. This is good for getting through narrow areas. Be aware the description mentions cat I/II. However it only came with cat II pins.

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FMHD Series User Manual (opens in a new tab)

Additional information

Lift Gate Needed

No Liftgate (-$75), With Liftgate