520Drawn Flail Shredder
- Front rubber deflectors
- Heavy-duty gearbox
- Steel rotor bearings
- Square rotor designed for superior strength
Features
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Hitch
Drawn
The 520 Flail Shredder can be ordered with two different types of tractor hookup, drawn or integral, depending on preference. An integral flail shredder allows making a very tight turning radius, even when the tractor is equipped with dual wheels.
Rotor
Rubber deflectors
Front rubber deflectors keep debris and other materials under the shredder and away from the tractor and operator. Because they are made out of rubber, they will not dent or rust.
Flail fastening system
Gearbox
Rotor bearings
Wheel supports
Lateral-bearing service access
Center-bearing service access
Drawn or integral model available to meet a variety of applications
Hitch
Drawn
Square rotor designed for superior rotor strength
Rotor
Designed for superior rotor strength, the square rotor, together with the opposite-mounted flails, provides a machine with less potential vibration, increasing the life of rotor bearings and belts.
Since 248 knives are mounted on the full length of the rotors on the main cutterbar, with 2.5 cm (1 in.) of overlap, a stalk won't get missed. This is a significant improvement over the 216 knives mounted on the previous 220 Flail Shredder.
Rubber deflectors will not dent or rust
Rubber deflectors
Flail fastening system eliminates clogging from mud or crop residue
Flail fastening system
The flail fastening system eliminates clogging from mud or crop residue. Its bracket design also helps prevent knife and ring loss.
Heavy-duty John Deere-designed gearbox
Gearbox
A heavy-duty, John Deere-designed and John Deere-built gearbox transfers power to the Kevlar® drive belts through cross shafts with intermediate bearing supports:
- The transmission is bolted directly to the frame.
- This gearbox has a constant-duty rating of 180 hp and a maximum rating of 270 hp.
- It carries a limited two-year warranty.
Kevlar is a U.S.-registered trademark of E.I. du Pont de Nemours and Company.
Steel rotor bearings for increased bearing life
Rotor bearings
The rotor bearings are now made of steel and have a three-lip seal to keep the dirt out and increase the life of the bearings.
The side and center bearings now have guards in order to avoid leaks and dust, increasing the life of the bearings.
Optional wheel supports eliminate uncut middle strip in non-row-crop field
Wheel supports
Optional wheel supports eliminate the uncut middle strip in crops like wheat, oats, and barley. The shredder can be pulled at an angle, offsetting the rotors and cutting evenly across the entire width of the machine.
Serviceability
Lateral-bearing service access
Center-bearing service access
Hard-to-reach center bearings can be serviced with the conveniently located grease fittings at the rear of the machine:
- There is no need for the operator to crawl under the machine to perform this service task, thus increasing the probability of the job being performed and completed safely.
Specifications
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| Specifications | ||||
|---|---|---|---|---|
| Select up to 4 models to compare specifications | John Deere 520 Drawn Flail Shredder |
Power requirements
| Tractor PTO hp range | Minimum 89 kg 120 hp |
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|---|---|---|---|---|
| Tractor RPM | 1,000 rpm | |||
| Gear case |
Knives
| Number of knives | 248 side slicer (124 pairs) | |||
|---|---|---|---|---|
| Knife dimensions | 7.87 x 63.5 mm 0.31 x 2.5 in. |
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| Knife mounting system | Bracket and D-ring | |||
| Type | Alloy steel, hardened with vanadium carbide and reversible | |||
| Knives overlap | 27.18 mm 1.07 in. |
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| Tip speed | 224 km/h 139 mph |
Rotor
| Rotor speed | 2,000 rpm | |||
|---|---|---|---|---|
| Rotor diameter | Square rotor 17.8 x 17.8 cm 7 x 7 in. |
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| Rotor bearing | Double-row, barrel-type, triple-sealed, 2-year warranty | |||
| Bearing size | 42.86 mm 1.69 in. |
Drivetrain
| Belts | Kevlar, 3/5V heavy-duty | |||
|---|---|---|---|---|
| PTO drivelines | 44.5 and 35.1 mm 1.75 and 1.38 in. |
Mainframe
| Hitch | Drawn or Integral (Cat. 3 or 3N Quik-Coupler required) | |||
|---|---|---|---|---|
| Hood thickness | ||||
| Safety deflector | Rubber deflector | |||
| Gauge wheels | 4 (Drawn), 2 (Integral); infinitely adjustable | |||
| Warning lights | Integral (standard), drawn (optional) |
Cutting capacity
| Cutting width | 6.1 m 20 ft |
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|---|---|---|---|---|
| Cutting height | 7.6-25.4 cm 3-10 in. |
Dimensions
| Transport width | Endwise; drawn 2.39 m 7.83 ft Integral 6.48 m 21.25 ft |
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|---|---|---|---|---|
| Transport length | Endwise; drawn 7.34 m 24.08 ft Integral 2.39 m 7.83 ft |
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| Weight | 2,268 kg 5,000 lb |
Optional equipment
| Easy transport | Available | |||
|---|---|---|---|---|
| Constant velocity joint driveline | Available | |||
| Skid shoes | Available |
Additional information
| Date collected |
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Images of equipment models may be digitally or AI generated, are for illustration purposes only, and are subject to change. Equipment models shown are typically base models and may not reflect the actual product, features, options, or attachments. Equipment availability may be limited. See your John Deere dealer for additional information.