A farmry 3 Point 87" Flail Mower HFSS87 mowing attachment for 30-85HP Category 1 & 2 tractors, with PTO hydraulic side shift and a black PTO shaft, both shown isolated on a white background.
A farmry 3 Point 87" Flail Mower (HFSS87) for Category 1 & 2 tractors (30-85HP), with PTO hydraulic side shift, is shown in orange with black and yellow details, designed for cutting grass and brush on a white background.
An orange farmry HFSS87 3 Point 87" Flail Mower with black and yellow details, PTO hydraulic side shift, for Category 1 & 2 tractors (30-85HP), is shown from the front against a white background.
The farmry 3 Point 87" Flail Mower, model HFSS87, for Category 1 & 2 tractors (30-85HP), features a bright orange, sturdy metal frame, PTO hydraulic side shift, and rotating blades, shown from the side on a white background.
Side view of the farmry 3 Point 87" Flail Mower HFSS87, an orange and black PTO hydraulic side shift mower (30-85HP) for Category 1 & 2 tractors, featuring a protective metal casing, vents, bolts, and multiple attachment points.
The farmry 3 Point 87" Flail Mower (HFSS87) is a PTO hydraulic side shift mowing attachment with metal chains and protective cover, designed for Category 1 & 2 tractors (30-85HP) to cut grass and brush.
Close-up of a black hydraulic motor with bolts and a warning label, mounted on orange equipment from the farmry 3 Point 87" Flail Mower, PTO Hydraulic Side Shift, for 30-85HP tractors (Model HFSS87), suitable for Category 1 and 2.
Close-up of a farmry 3 Point 87" Flail Mower (HFSS87) PTO Hydraulic Side Shift, showing its black roller with sharp teeth, designed for 30-85HP Category 1 & 2 tractors, set against a blurred gray background.
The farmry 3 Point 87" Flail Mower, model HFSS87, is a PTO hydraulic side shift mowing attachment for Category 1 and 2 tractors, compatible with 30-85HP, designed for efficient land clearing and maintenance.
+ Show More
5% OFF · Final Christmas · Ends in 
 :  :  :
SKU: 101308D | Model: HFSS87

3 Point 87" Flail Mower, PTO Hydraulic Side Shift, 30-85HP Mowing Attachment for Category 1 and 2 Tractors, HFSS87

$4,999.00

FREE SHIPPING

Estimated Arrival Date: January 5, 2026
Learn More
Optional Working Width: 87 in
87 in 71 in 79 in
Availability: In Stock
Code: SAVE5
Copy
🎁 Free Gift
(1Pack/10Pcs) HFS flail mower hammer blades set
$79.99 Free
Payment:
Mastercard Visa American Express PayPal
Leaves Warehouse Within 1 Week
Ships Randomly From our California or North Carolina Warehouse. Learn More

12-Month warranty included

Product Overview

The Farmry 87 in Heavy Duty Verge 3-Point Offset Flail Ditch Bank Mower provides a wide 87" cutting width for tackling extensive mowing tasks efficiently. Ideal for 30-85 HP tractors, it handles grass, bushes, and pruning. The adjustable cutting height offers versatility for various terrains, and the self-cleaning roller ensures consistent ground contact. With centralized greasing for easy maintenance and hydraulic side shift for better reach, this mower is optimized for tough agricultural and landscaping applications.

Product Manual

HFS Series Product Manual v1.0

Product Features

specifications

Shipping Information

Warranty Information

Video

Reviews & Questions

Customer Reviews

Based on 5 reviews
80%
(4)
20%
(1)
0%
(0)
0%
(0)
0%
(0)
T
Tom Reeves

Tested the HFSS87 on steep slope edges and it's surprisingly nimble—side shift and lift work in harmony to keep mowing level even on angles. The PTO driveline feels robust and connection was straightforward. It’s a bit heavy to lift manually when detaching, so two-person job recommended if you disconnect often. Blade change is quicker than older units I’ve used. Overall, a heavy-duty mower that’s thoughtfully engineered for serious pasture work.

M
Mike Donnelly

Mounted the HFSS87 on my 70HP tractor and noticed it's quieter than I expected—fairly low RPM noise even during heavy brush cutting. The hydraulic shift is smooth, with quick response to joystick control. I did have to lubricate the pivot points before first use, which is typical for gear-driven units. Deck width is excellent for broader swaths, but it can be a bit tight in barn exits. Still, it’s a solid choice for larger farms needing precise, efficient mowing.

J
Jason Whitman

I’ve been using the HFSS87 on uneven ground and the hydraulic side-shift feature is a game‑changer—lets me reach fence lines and awkward spots without repositioning the tractor. The build quality feels sturdy and the balance is spot‑on, with very little vibration even at full PTO. One minor gripe: the gauge for height adjustment could be clearer under low light. All in all, this mower ticks the boxes for heavy-duty use and adds real convenience in tricky field layouts.

P
Pascal Shelton

This thing is a beast—built like a tank. It mows efficiently and makes short work of overgrown areas. Just a heads-up for anyone using a smaller tractor: it’s heavy, so make sure your lift arms and rear remotes can handle it. Once it’s on and running though, it’s smooth and powerful.

M
Marty Hulsy

I was a little skeptical at first, but this flail mower handles rough and uneven terrain better than any rotary cutter I’ve used. It gives a cleaner cut, and there’s way less risk of throwing debris. I’ve used it on roadside brush, tall weeds, and some thick grass—it powers through everything. Would definitely recommend.

customer also viewed

The Farmry 47" Cutting Width Finishing Mower FM120LN features a three-point hitch, suits 20-45 HP tractors, and offers robust cutting with its galvanized steel frame and sharp blades.Front view of the farmry Farmry 47" Cutting Width Finishing Mower (FM120LN), featuring four small wheels, a galvanized steel frame, and a central gearbox; designed for 20-45 HP tractors with 3-point linkage.
Farmry 47" Cutting Width Finishing Mower, 20-45 HP, 3-Point, FM120LN
$1,599.00
$2,099.00

Recently Viewed

Clear

FAQs

What PTO speed for a flail mower?

Most flail mowers are designed to run efficiently at a 540 RPM PTO shaft speed, which is the standard for compact and mid-size tractors. This ensures the hammer blades or Y-blades reach the correct cutting velocity for mulching grass, brush, and tree prunings without straining the gearbox. Some heavy duty flail mowers may support higher PTO ratings, but 540 RPM is the most common for a three point hitch setup. Always check the manufacturer’s instructions and grease fittings to guarantee long-term performance and safety.

How long do flail mower blades last?

The durability of hammer blades or knives depends on the material being cut and the terrain. On average, blades last 75 to 150 hours of mowing time before needing sharpening or replacement. Cutting small brush, hitting rocks, or tackling fence lines will wear blades faster. With regular maintenance—checking grease points, roller height, and belt tension—quality hammer blades on a shift flail mower can deliver a full season of reliable mulching before needing replacement.

How many acres can an 87-inch mower cut in an hour?

An offset flail mower with a wide 87-inch working width can cover between 6 to 8 acres per hour under normal field conditions, depending on tractor horsepower, ground obstacles, and mowing speed. Hydraulic side shift gives extra reach around trees, fence lines, and trails, reducing the need for repeat passes. This makes the Farmry Heavy Duty Verge Flail Mower an efficient solution for larger acreages, offering a professional balance of speed, mulching performance, and precision.

What RPM should you run a side shift flail mower?

For optimal performance, a side shift flail mower should be run at the tractor’s rated PTO speed of 540 RPM, delivering enough power for heavy mulching while protecting the gearbox, belts, and rotor. Running too high an engine RPM risks damaging the shaft and bearings, while too low reduces cut quality and mulching efficiency. Correct RPM ensures the mower works great whether cutting grass, brush, or handling heavier material like branches and prunings.