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Sundown

Sundown Heavy-Duty Flail Mower | FM Series | Cutting Width 39" - 87" | 30-60 HP | For Tractors

Sundown Heavy-Duty Flail Mower | FM Series | Cutting Width 39" - 87" | 30-60 HP | For Tractors

Regular price $3,660.00
Regular price Sale price $3,660.00
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Machine Compatibility
Customizable
Fast
24/7 Support
  • Cutting Width: 39"–87".
  • Tractor Power: 30–60 HP.
  • Hitch Type: Cat 1 & 2 Tractors.
  • Machine Weight: 660–1,113 lbs.
  • Use: Pasture, Orchard, Field Mowing.
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Product Description

Sundown Heavy-Duty Flail Mower | FM Series | Cutting Width 39" - 87" | 30-60 HP | For Tractors


DESCRIPTION

Built for landowners, farmers, and contractors who demand clean cuts and rugged reliability, the Sundown Flail Mower delivers professional-grade vegetation control across pastures, orchards, roadsides, and fields. Designed for 30–60 HP tractors, this mower uses a high-speed rotor spinning at 2,083 RPM to pulverize grass, weeds, brush, and crop residue into fine mulch. Its hydraulic side shift allows precise trimming around fences, trees, and edges, while the rear roller and adjustable cutting height (1"–3.5") ensure smooth, even results. With multiple widths from 39" to 87", Cat 1 & 2 compatibility, and a reinforced powder-coated frame, Sundown flail mowers are built to work harder, last longer, and leave your land looking professionally maintained.

Key Features

  • Heavy-Duty Flail Rotor engineered to spin at 2,083 RPM, delivering superior mulching performance that leaves grass, weeds, and brush finely chopped and evenly dispersed.
  • Wide Cutting Width Options ranging from 39 inches to 87 inches, allowing operators to match mower size perfectly to tractor horsepower and property size.
  • 30–60 HP Tractor Compatibility makes this flail mower ideal for compact and utility tractors used in farming, landscaping, orchard maintenance, and roadside management.
  • Hydraulic Side Shift Standard enables smooth right-side offset cutting for trimming under fences, trees, and obstacles with precision and reduced operator effort.
  • Cat 1 & Cat 2 Hitch design ensures quick attachment to a wide range of tractors, increasing versatility across different fleets and work environments.
  • High-Strength Flail Knives or Hammers available in multiple configurations to tackle light grass, heavy weeds, or dense brush with consistent cutting results.
  • Rear Roller System stabilizes the mower during operation, improves ground contour following, and produces a clean, uniform finish across uneven terrain.
  • Adjustable Cutting Height from 1 inch to 3.5 inches allows operators to fine-tune results for grooming, pasture topping, or aggressive vegetation control.
  • PTO Shaft Included with standard 540 RPM operation ensures reliable power transfer and hassle-free setup right out of the crate.
  • Reinforced Steel Frame with durable powder-coated orange finish resists corrosion, impacts, and harsh outdoor conditions for long service life.
  • Multiple Belt Drive System absorbs shock loads during heavy cutting, protecting the gearbox and extending overall machine durability.
  • Side Depth Skids help maintain consistent cutting height while protecting the mower housing when working in rough or uneven ground conditions.
  • Balanced Rotor Assembly minimizes vibration, improves operator comfort, and allows higher productivity during long mowing sessions.
  • Ideal for Multiple Applications including pasture maintenance, orchard rows, vineyard lanes, roadside mowing, and property cleanup tasks.
  • Optional Manual Side Shift Jack available for operators who prefer mechanical adjustment while retaining full cutting performance and reliability.

Detailed Specifications

Specification FM-100 FM-130
Required Tractor Power 30–60 HP 30–60 HP
Cutting Width 39" 51"
Overall Width 45" 57"
Weight 660 lbs 806 lbs
Hitch Type Cat 1 / 2 Cat 1 / 2
Flail Knives 24 32
Hammers 12 16
Side Shift Fixed 12"
Rotor Speed 2,083 RPM 2,083 RPM
Rotor Diameter 6.25" 6.25"

 

Specification FM-145 FM-160
Required Tractor Power 30–60 HP 35–60 HP
Cutting Width 57" 63"
Overall Width 64" 70"
Weight 854 lbs 907 lbs
Hitch Type Cat 1 / 2 Cat 1 / 2
Flail Knives 36 40
Hammers 18 20
Side Shift 12" 12"
Rotor Speed 2,083 RPM 2,083 RPM
Rotor Diameter 6.25" 6.25"

 

Specification FM-175 FM-205
Required Tractor Power 40–60 HP 45–60 HP
Cutting Width 69" 80"
Overall Width 76" 88"
Weight 955 lbs 1,060 lbs
Hitch Type Cat 1 / 2 Cat 1 / 2
Flail Knives 44 52
Hammers 22 26
Side Shift 12" 12"
Rotor Speed 2,083 RPM 2,083 RPM
Rotor Diameter 6.25" 6.25"

 

Specification FM-220
Required Tractor Power 50–60 HP
Cutting Width 87"
Overall Width 93"
Weight 1,113 lbs
Hitch Type Cat 1 / 2
Flail Knives 56
Hammers 28
Side Shift 12"
Rotor Speed 2,083 RPM
Rotor Diameter 6.25"

 

Manuals & Documents

General Warranty Info:

  • Ripping It Outdoors works closely with our manufacturers to supply and support your products warranty needs as best as possible!
  • The majority of products come with a manufacturer represented warranty against manufacturing defects for at least a 12 month period after the date of sale.
  • Expendable components and "wear parts" including but not limited to blades, knives, teeth, oil, chain sprockets, skid shoes, knife mounting discs, and similar components are usually excluded from manufacturer warranties.
  • Please reach out to us for any specific warranty information needed about products and parts you can’t find!

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Shipping

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  • Complimentary lift gate service on all freight shipments where it’s possible. We guarantee safe delivery!
  • Low shipping rates for customers. We have negotiated the best possible rates for customers from our trusted carriers (ODFL, ESTES, UPS, and FedEx).
  • Negotiate shipping rates if you think we can do better please reach out. Keep in mind some shipping rates also include assembly & configuration as well!

Customer Reviews

Overall rating: 4.7 / 5 from 110 reviews.

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The week before leaving for my mule deer hunt in Wyoming, I seeded the area surrounding the new runway at Wertheimer Airport in Norman. This past Tuesday, I returned to finish the job and was pleased to see that the seed I planted just two weeks earlier was already germinating and coming up nicely. These pictures show the freshly seeded areas alongside those planted two weeks ago. It’s a great comparison and a good example of what proper seedbed preparation and planting can accomplish. I used my Ferminator G-3, which is one impressive piece of equipment. It prepares the seedbed, plants the seed, smooths the soil, and firms everything up for good seed-to-soil contact—all in one efficient operation. I’ve owned and operated several no-till drills over the years, but I can say without hesitation that the Ferminator is the most efficient and versatile seeding machine I’ve ever owned. There’s something pretty satisfying about returning to a job and seeing those first green shoots coming through the ground. That’s when you know your hard work is paying off!

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Ferntree Mini Excavator Forestry Mulcher | Model FF-L Series | 22"-30" Cutting Width | Machine Size 2.5- 6 Ton | For Mini Excavator

Over all built well. I like it is all cast iron and metal and not plastic. Had to modify fertilizer disc mount to fit correctly, nothing major, a little grinding. I modified the center link hitch point to accommodate my John Deere quick hitch. Have yet to plant with it but I’m sure it will work perfect. Love the grease fittings everywhere. Reminds me of the old farm equipment I grew up on, and still use periodically.

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It’s built solid. It handles Field grass hip high pretty well. With the maintaining the field grass after the first cut, the pasture field is starting to look like a lawn. The 84 inch with the best thing to get for 8 acres. It’s best to order belts for back up in the event if the belts were to break. But overall, I like the product quality is good.

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