Rotary Cutters | R20 Flex Wing Rotary Cutter

Features

What is the best cutter for your job?

NOTE: Only for E, M, and R flex-wing models.

John Deere flex-wing rotary cutters lead the way with innovative design, superior durability, and proven performance. Valuable features are included such as a dome-shaped smooth deck, which prevent water and debris from accumulating on the top of the machine and makes it easy to clean up.

Built with a superior structural design that will satisfy different applications and segment desires, the single deck on the flex-wing cutters adds volume on the cutting chamber, allowing the machine to process more material and translating into an improvement in cut quality. The cutting chamber design allows the material to flow through the area and be discharged evenly throughout the width of the machine.

To help promote safe operation, John Deere rotary cutters are equipped with front and rear safety-chain shields and lighting kits to comply with U.S. regulations. John Deere rotary cutters continue to advance in value with larger, more powerful gearboxes, and updated constant-velocity (CV) drivelines.

Here are situations when a rotary cutter provides value:

Clipping pastures encourages grass growth, optimizing on valuable pasture acreage.
Cutting grass and stalks helps control insects.
Routine cutting keeps weeds from reseeding.
It is the most cost efficient way to cut roadsides, parks, cemeteries, airport fields, hydro, gas, and telephone easements, and all other types of open properties.
Cutting grass waterways encourages root development and helps prevent erosion.
Knocking down stalks such as cotton, corn, or milo speeds up decomposition. This is essential in no-till and minimum-till fields.
Clearing out brush is easy.
Control undergrowth and grass in orchards, vineyards, and groves.

Decide what model to use based on:

The size of the area to mow versus the size of the machine – the bigger the area to mow, the bigger the mower needs to be in order to be efficient during mowing hours.
The amount of time and frequency it will be used – for longer hours and more frequency, choose a heavier duty machine.
Tractor compatibility – if there is a tractor the operator will be using, look for the tractor compatibility sheet to identify appropriate options.
Choose the right features to satisfy specific needs – check out the value and benefits for each option to determine which one is the best fit for the work

John Deere flex-wing rotary cutters are available in three duty-level categories and four width sizes.

E-spec
- Sizes: 3.7-m (12-ft) and 4.6-m (15-ft)
- E-spec models cut brush up to 50.8 mm (2 in.) in diameter
- Two tire options to choose from
- Available in 540 rpm
- Tractor compatibility – see chart
- Great choice for the property owners with light-duty applications
M-spec
- Sizes: 4.6-m (15-ft) and 6.1-m (20-ft)
- M-spec models cut brush up to 76.2 mm (3 in.) in diameter
- Includes additional options to satisfy most customer needs
- Available in 540 or 1000 rpm
- Good match for medium-duty customers and their versatile jobs
R-spec

Sizes: 3.05-m (10-ft), 4.6-m (15-ft), and 6.1-m (20-ft)
R-spec models cut brush up to 101.6 mm (4 in.) in diameter
Available in 540 or 1000 rpm (R10 only available in 540 rpm)
Excellent for road side mowing and more demanding applications

Safety

John Deere flex-wing rotary cutters are equipped with chains and lights as standard in all models.

Front and rear safety chains

Front safety chains

Chain shields offer protection to the operator and the area surrounding the cutter, yet allows uncut material to pass into the cutting chamber with minimal restriction.

Optional double-row chains for R-spec models

Lighting kit

Lights are required for U.S. regulations on implements wider than 3.05 m (10 ft). All cutters come standard from the factory with lights.

Transport lock

Transport lock on back axle

Transport lock on wings

Always use the transport lock on the wings and back axle while transporting or moving the machine.

Warranty

Five-year limited gearbox warranty provided on every John Deere rotary cutter

Five-year warranty on all flex-wing gearboxes

Five-year warranty on all rotary cutter gearboxes

John Deere is so confident in the reliability of the gearbox that rotary cutters come with a 5-year limited gearbox warranty.

There is also 1-year warranty on the complete machine, as well as drivelines and other components.

Maintenance

John Deere flex-wing rotary cutters are equipped with a single dome deck to allow material debris and water to be easily removed from the top of the machine.

Dome shape – clean top deck

R-spec machines

R-spec machines come standard with these features that will reduce overall maintenance time.

Maintenance-free bushings

Sealed hinges

There is no need for greasing, as the machine includes internal pre-greased bushings and sealed hinges.

Back torsional suspension

Torsional suspension

This requires minimal maintenance; operators only need to check that bolts are tightened every 40 hours.

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Specs & Compare

John Deere

R20

Flex Wing Rotary Cutter

Cutting width

6.1 m
20 ft

Cutting capacity (diameter)

101.6 mm
4 in.
with hammer blade: 127 mm
5 in.

Tractor PTO HP range

56 kW
75 hp

Transport width

11.1 ft (3.4 m) at wing wheels

Deck thickness - upper - lower

7 gauge - 4.55 mm
0.18 in.

Shirt thickness

3 gauge - 6 mm
0.24 in.

Approx. weight

3466 kg
7643 lb

Drivelines - Size - Main

CV ASAE Category 6, splined telescoping profiles

Blade tip speed - 540 rpm - 1000 rpm

87.8 m/s
288 fps

Gearboxes

Five years

Cutting width

6.1 m
20 ft

Cutting height

25.4-406.4 mm
1-16 in.

Cutting capacity (diameter)

101.6 mm
4 in.
with hammer blade: 127 mm
5 in.

Cutting chamber depth

254 mm
10 in.

Tractor PTO HP range

56 kW
75 hp

Tractor PTO

540 or 1,000 rpm

Static Vert Drawbar Load Rating

Type

Standard self-level hitch clevis with 57.2-cm (22.5-in.) narrow-profile width
Ball-type self-level hitch with 57.2-cm (22.5-in.) narrow-profile width and 2-degree rotation freedom to each side

Gearboxes	Five years

Date collected

Offers and Discounts

Up To 20% OFF Rotary Cutter Blades†

for various rotary cutter models.

†For complete details regarding this offer, please select the corresponding link above.

View Offer Details

3.5% APR/ACR for 24 Months†

on a new John Deere Rotary Cutter

†For complete details regarding this offer, please select the corresponding link below.

View Offer Details

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Transport width	11.1 ft (3.4 m) at wing wheels
Overall width	6.2 m 20.3 ft
Overall length	5.3 m 17.3 ft
Deck shape	Easy-clean dome-shaped top deck
Deck type	Single dome deck
Deck thickness	7 gauge - 4.55 mm 0.18 in.
Shirt thickness	3 gauge - 6 mm 0.24 in.
Hinges	Intermittent cast steel segments - maintenance-free single 2.5-cm (1-in.) diameter full-length hinge pin
Approx. weight	3466 kg 7643 lb

Size	Main CV ASAE Category 6, splined telescoping profiles Connecting ASAE Category 5, splined telescoping profiles
Protection	Connecting No-seize, slip-clutch driveline

Thickness	13 mm 0.5 in.
Width	102 mm 4 in.
Type	Suction
Overlap	152 mm 6 in.
Blade rotation
Blade tip speed	540 RPM 81.7 m/s 268.1 fps 1000 RPM 83 m/s 272.4 fps
Material flow system
Blade holder	Type Round stump jumper and standard deck rings for maximum protection of blades and blade carrier against obstruction damage Option of double blade bar for extra shredding

Wing lift	Independent; includes spring assist unfolding
Wing flex	For transport: upward 90 degree (angle) Working angles: upward 45 degree (angle) downward 22 degree (angle)

Type	Option 1 Sealed bearing on hubs 5-bolt, laminated: 21x5.25x9 Option 2 5-bolt, 24PR severe-duty ag): 26x9x14.5 5-bolt, 24PR severe-duty ag foam filled: 26x9x14.5
Suspension	Torsional suspension
Row width adjustment	Yes
Wing-leveling adjustment	Easy adjust turnbuckle with bearing

R20Flex Wing Rotary Cutter

Features

What is the best cutter for your job?

Safety

Front and rear safety chains

Lighting kit

Transport lock

Warranty

Five-year limited gearbox warranty provided on every John Deere rotary cutter

Maintenance

R-spec machines

Maintenance-free bushings

Back torsional suspension

Specs & Compare

Key Specs

Capacity

Tractor compatibility

Hitch

Dimensions

Drivelines

Gearcases

Blades

Hydraulics

Wheels

Shielding

Warranty

Additional information

Offers and Discounts

Offers and Discounts

Up To 20% OFF Rotary Cutter Blades†

3.5% APR/ACR for 24 Months†

Shop and Buy

Maintenance and Support

You May Also Be Interested In

Number	4
HP rating	Transfer Continuous: 186 kW 250 hp Peak: 224 kW 300 hp Center Continuous: 93 kW 125 hp Peak: 168 kW 225 hp Outer Continuous: 93 kW 125 hp Peak: 168 kW 225 hp

Front	Single-row chain guard Optional: double row
Rear	Single-row chain guard Optional: double row

R20Flex Wing Rotary Cutter

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Features

What is the best cutter for your job?

Safety

Front and rear safety chains

Lighting kit

Transport lock

Warranty

Five-year limited gearbox warranty provided on every John Deere rotary cutter

Maintenance

R-spec machines

Maintenance-free bushings

Back torsional suspension

Specs & Compare

Key Specs

Capacity

Tractor compatibility

Hitch

Dimensions

Drivelines

Gearcases

Blades

Hydraulics

Wheels

Shielding

Warranty

Additional information

Offers and Discounts

Offers and Discounts

Up To 20% OFF Rotary Cutter Blades†

3.5% APR/ACR for 24 Months†

Related Products

Shop and Buy

Maintenance and Support

You May Also Be Interested In