New MX8 MX8 Rotary Cutter

Medium-Duty Rotary Cutter
Key Features
  • Standard safety chain shields
  • Standard stump jumper blade holder
  • 3-point hitch quick-coupler (Category 2)
  • Industry-exclusive Double-Deckerâ„¢ frame design

More Info


Which rotary cutter is right?

John Deere rotary cutters lead the way with innovative design, superior performance, and proven durability. Valuable features are included such as the Double-Decker™ design and Max Flow cutting chamber, which prevent water and debris from accumulating on the smooth, dome-shaped top deck while the flat bottom deck absorbs the punishment from rocks and stumps.


The top deck stays smooth - no dents, no dings, no holes. The internal supports sandwiched between the top and bottom decks are key to the smooth and structure-free Max Flow cutting chamber, while at the same time provide added strength and durability.


To help promote safe operation, John Deere rotary cutters are equipped with front and rear safety-chain shields. John Deere rotary cutters continue to advance in value with larger, more powerful gearboxes, redesigned blade holders, and updated constant-velocity (CV) drivelines (special to the flex-wing models).


Here are situations when a rotary cutter is needed:

  • Clipping pastures encourages grass growth, optimizing on valuable pasture acreage.
  • Cutting grass and stocks 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 is essential in no-till and minimum-till fields.
  • Shredding stalks such as cotton, corn, and milo speeds up decomposition.
  • Clearing out brush is easy.
  • Use a rotary cutter to control undergrowth and grass in orchards, vineyards, and groves.

John Deere rotary cutters are available in three duty-level categories, three different spindle configurations, four hitch types, and three flex-wing sizes.

  • Mid-duty
    • MX models are available in 1.5-m (5-ft), 1.8-m (6-ft), 2.1-m (7-ft), 2.5-m (8-ft), 3.2-m (10-ft), and 4.6-m (15-ft) cut widths.
    • This duty-level category cuts brush up to 50.8 mm (2 in.) in diameter.
  • Heavy-duty
    • HX models are available in 3.2-m (10-ft), 4.2-m (14-ft), 4.6-m (15-ft), and 6.1-m (20-ft) cut widths.
    • HX6 is available in 1.8-m (6-ft) and the HX7 is available in 2.1-m (7-ft) cut widths; they cut brush up to 101.6 mm (4 in.) in diameter.
  • Commercial-duty
    • CX models are available in 3.2-m (10-ft), 4.6-m (15-ft), and 6.1-m (20 ft) cut widths; they cut brush 101.6 mm (4 in.) in diameter.


NOTE: CX models are heavier built to cut at a 101.6mm (4 in.) capacity level more frequently and for longer durations.

Industry-exclusive Double-Decker™ frame design
Cross-section of patented Double-Decker designCross-section of patented Double-Decker design

The patented Double-Decker design provides strength and superior cutting performance while reducing top deck rust. Two welded decks, each 3-mm (1/8-in.) thick, form the upper and lower surfaces of the rotary cutter frame.


Internal stiffeners are sandwiched between the two decks, providing superior strength and rigidity.


The top deck is domed. Water, grass, and crop debris tend to roll off the deck, reducing water buildup and deck rust. The domed shape and smooth profile of the top deck also make the deck easier to clean when trash does build up in adverse conditions.

Unobstructed horizontal bottom deckUnobstructed horizontal bottom deck

The bottom deck is the main defense against rocks and field debris. Therefore, the top deck is continuously protected from impacts and tends to retain its smooth form.


Because the stiffeners are located between the two decks, the underside of the bottom deck is perfectly smooth; there are no structural frame members to interrupt airflow. This improves both cutting performance and distribution.


Standard material flow deflectors help channel the cut material, further improving material distribution.

Five-year limited gearbox warranty provided on every John Deere rotary cutter
Five-year warranty on all flex-wing gearboxesFive-year warranty on all flex-wing gearboxes
Five-year warranty on all rotary cutter gearboxesFive-year warranty on all rotary cutter gearboxes

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

Standard stump jumper blade holder provides protection against impacts

Round-pan blade holders (stump jumpers) are provided as standard equipment on most John Deere rotary cutter models. Stump jumpers increase the drivetrain reliability by providing protection against impacts such as stumps, rocks, and other obstacles.

Safety chain shields are standard
Front safety chains (MX8 shown)Front safety chains (MX8 shown)
Rear safety chains (MX8 shown)Rear safety chains (MX8 shown)

Front and rear chain shields are standard equipment:

  • Offer protection during operation yet allow uncut material to pass into the cutting chamber with minimal restriction
Driveline with slip clutch helps protect it against overloads
Rubber element driveline with chain couplersRubber element driveline with chain couplers

Rubber element connecting drivelines help absorb the sudden stress of impact loads. Chain couplers are used to maintain the driveline alignment.

Slip-clutch drivelineSlip-clutch driveline

A non-seize slip clutch used between the primary gearcase and power take-off (PTO) helps protect the driveline. Slip clutches feature a spring-compression adjustment used to ensure clutches are not seized.


Lift-type and semi-mount models feature an ASAE Category 4 driveline for added durability.

Equal-angle drivelineEqual-angle driveline

The pull-type model uses an equal-angle driveline for smoother, rattle-free turns.


A lightweight driveline with a lock-slide collar makes it fast and easy to attach.


The driveline provides long lubrication periods; a 50-hour cycle reduces maintenance time, making the cutting operation more efficient.


Cutting width 2,450 mm
96 in.
Cutting height 25 to 305 mm
1 to 12 in.
Cutting capacity 50 mm
2 in.
Cutting chamber Depth 216 mm
8.5 in.
Tractor compatibility
Tractor PTO HP range Minimum PTO pull-type, semi-mount, semi-mount hydraulic offset 30 kW
40 hp
Minium PTO lift-type 37 kW
50 hp
Tractor PTO 540 rpm
Type Pull-type, lift-type, semi-mount, semi-mount hydraulic offset (Pull-type has standard 10,000 lb; 4536 kg, safety tow chain)
Category 2, 3, 3N
Transport width 2,580 mm
102 in.
Overall width 2,580 mm
102 in.
Overall length 2,810 mm
111 in.
Deck shape Domed
Deck type Double decker
Deck thickness Upper
3 (11) mm
0.125 (11) in.Lower
3 (11) mm
0.125 (11) in.
Side skirt thickness 4.5 (7) mm
0.177 (7) in.
Approx. weight 759 kg
1,670 lb
Size Main
ASAE Category 4
Protection Main
Non-seize, slip-clutch driveline, pull-type has equal-angle Category 4 drivelineConnecting
Shock absorbing shafts
Number 3
HP rating Transfer
Continuous 89 kW
120 hp
Peak 97 kW
130 hpOuter
Continuous 56 kW
75 hp
Peak 75 kW
100 hp
Thickness 13 mm
0.5 in.
Width 102 mm
4 in.
Type Suction
Overlap 72 mm
2.8 in.
Blade tip speed 540 RPM
4,797 m/min
15,739 fpm
288 km/h
179 mph
Material flow system Max flow
Holder Type
Round stump jumper
Type Puncture proof laminated (Pull-type has severe-duty Ag tire option)
Row width adjustment Yes, pull-type only
Front Chain
Rear Chain

Accessories and Attachments


Lighting Kit (Tractor must have 7-Pin Electrical Outlet) - BW14472
Warning lightWarning light

Recommended for use when transporting and tractor flashing lights are obscured by the implement. Tractor must have 7-pin electrical outlet.



  • Left and right lights
  • Brackets
  • Wire harness
  • Instructions


Note: Warning lights are standard equipment on HX14 Rotary Cutter.


Cat. I Hitch Pin - W46672

Two required. Also requires (2) M72431 and (2) A15146.

Skid Shoe (Weld On) - W45401


French Operator's Manual and Decal Kit - BW14500
Spanish Operator's Manual and Decal Kit - BW15677


Slow Moving Vehicle (SMV) Emblem and Support - BW00381
SMV emblem and supportSMV emblem and support

Use SMV emblem to provide additional warning of slow-moving equipment.

Safety Shields

Front Safety Shield - BW14467
Front safety chain shieldFront safety chain shield
Rear safety chain shieldRear safety chain shield

Safety shields are used to reduce the hazard of thrown material.


Front chain shields protect the operator, yet still allow uncut material to pass into the cutting chamber with minimal restriction.


Front and rear shields are to be used at all times. They are especially critical when working near roads or other public areas.

Rear Safety Shield - BW15254
Front safety chain shieldFront safety chain shield
Rear safety chain shieldRear safety chain shield

Safety shields are used to reduce the hazard of thrown material.


Front chain shields protect the operator, yet still allow uncut material to pass into the cutting chamber with minimal restriction.


Front and rear shields are to be used at all times. They are especially critical when working near roads or other public areas.