The IronCraft 3520 Flex-Wing Cutter is a heavy-duty 20-foot rotary cutter built for large fields, pastures, roadsides, right-of-ways, airports, and other large-scale mowing applications. With a 240-inch working width and a cutting capacity of up to 4 inches, the 3520 gives you the coverage and cutting capability needed for demanding vegetation management.

The 3520 is designed for tractors with a minimum of 80 PTO horsepower. Its flex-wing design allows the cutter to follow uneven terrain, with up to 22° of downward flex and 100° of upward flex. A self-leveling swivel-pivot hitch and spring-loaded suspension help maintain a consistent cut as the terrain changes.

This particular 3520 is equipped with a 1000 RPM, 21-spline PTO setup, chain guarding, eight 27" AirCraft tires, walking tandem axles, and a light kit. The cutter is finished in gray.

The heavy-duty 3520 features a 10-gauge center deck, 7-gauge wing decks, 1/4" x 13-1/2" side bands, 1/2" x 4" uplift blades, replaceable skid shoes, and slip-clutch driveline protection. Its walking tandem setup provides additional support and stability when moving across uneven ground.

Model: IronCraft 3520
Type: 20' Flex-Wing Cutter
Working Width: 240"

Overall Width: 249"

Transport Width: 108"

Tongue Weight: 2,700

Weight: 8700
Minimum PTO HP: 80 HP
Cutting Capacity: Up to 4"
PTO: 1000 RPM
Guarding: Chain Guards
Tires: 27" AirCraft — 8 Total
Walking Tandem Axles: Yes
Light Kit: Yes
Color: Gray
Cutting Height: 2"–15"
Center Deck: 10 Gauge
Wing Decks: 7 Gauge
Side Bands: 1/4" x 13-1/2"
Blades: 1/2" x 4" Uplift
Driveline Protection: Slip Clutch
Wing Flex: 22° Down / 100° Up
Hitch: Swivel-Pivot Self-Leveling

Suspension: 2 Heavy Duty Springs in Center Tailwheel Assembly & 1 Heavy Duty Spring on each Wing Tailwheel Assembly