20 Ft Heavy Duty Flex-Wing Rotary Cutter IronCraft 3520



Our Favorite Things About This Cutter:

  • Huge 20 ft Cutting Width
  • Impressive 4″ dia Cut Capacity
  • Narrow 8 ft Transport Width
  • Heavy Duty 10 ga and 7ga Steel Deck Construction
  • Standard Light Kit For Towing Safety
  • 5 Yr Gearbox Warranty

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Purchase this item and get 15587-16119 Points worth $311.74-$322.38 to save on future orders!  You must register an account to track receive and track points.

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IronCraft 3520 Flex-Wing Cutter Description

If you need to mow large areas, don’t waste your time with a small cutter. Spring for IronCraft’s widest flex-wing mower with a 20 ft cutting width. Designed for large tractors with 80 hp or more, the transport width is only 8 ft, making it easy to tow down the road, a path in the woods, or pass through your fence-gate.

You’ll not only cut 20 ft at a time, but cut down anything up to 4″ in diameter—that’s some serious clearing capability. And the 3520’s Spring Loaded Suspension System and Optional Walking Tandem Tailwheel Assemblies offer a stable, even cut, no matter how challenging the ground conditions. Three tire styles available—foam filled, “Aircraft” pneumatic, or laminated.

Available for 540 rpm or 1000 rpm PTO shafts.

Designed heavy duty with large 1″ internal leveling rods, 4″ wide blades, and larger replaceable skid shoes, and a clean, flat top design for easy maintenance and service. 


IronCraft 3520 Flex-Wing Cutter Specs

Product Family 3520 Series
Product 3520
Description 20′ Heavy Duty Flex Wing Rotary Cutter
RPM 540 or 1000
HP Required 80 minimum PTO
Working Width 240″
Overall Width 249″
Transport Width 94″ (with tandems 108″)
Tongue Weight 2700 lbs
Weight (lbs) 8700 lbs w/ 8- 26″ laminated tires
Cutting Height 2″ to 15″
Cutting Capacity 4”
Deck Thickness 10 GA Center Deck / 7 GA Wing Decks
Side Bands 1/4″ x 13-1/2″
Suspension 2 Heavy Duty Springs in Center Tailwheel Assembly & 1 Heavy Duty Spring on each Wing Tailwheel Assembly
Skid Shoes Replaceable
PTO Drive Shaft ASAE CAT 6
Wing Drive PTO ASAE CAT 6
Driveline Protection Slip Clutch
Blade Holder Round Pan
Gearbox Rating 275 HP
Outboard Gearbox Rating 225 HP
Wing Flex 22 Degrees Down to 100 Degrees Up
Blades 1/2″ x 4″ Uplift
Blade Overlap 2.6″
Wheel Type 26″ Laminated, 26″ Foam Filled, or 29″ Pneumatic
Hitch Type Swivel Pivot Self Leveling
Gearbox Warranty 5 year limited
Deck Rings Standard
Safety Tow Chain Standard
Guarding Options Single Row Chains Standard
FPM 540 RPM PTO 16,600 / 1,000 RPM PTO 17,40

Additional information

Tire Style

26" Laminated Tires, 29" Pneumatic "Aircraft" Tires, 26" Foam Filled Tires


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Attachments for tractors - Good Works Tractors

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