Cut brush up to 4” in diameter with 3 sizes to choose from - 10', 12' and 15'!

4000 Series Flex-Wing Rotary Cutters

Everything we love about the Apex series, taken up a notch!

The Rhino 4000 “Epic” series rotary cutters boost the horsepower requirement to 60, getting the the ability to cut brush up to 4” in diameter! The stronger gearbox is tested up to 250 horsepower, while the whole unit is protected by a safety chain!

Couple that with slip-clutch protection and hydraulic wing-lift and you’ve got a monster rotary cutter not to be taken lightly!

And NEW to the lineup is our heavy-duty 12' model, the 4125! This flex-wing has the guts of a 4000 Series mower but in a completely redesigned 12' frame. Unique to the 4125 is the independent axle arm suspension. This reduces the stress of heavier material and higher hour workloads - which in turn leaves you with less downtime and maintenance.

With over three years of testing, we are confident this machine will be a staple for the heavy-duty workloads. And just like the 4105 and 4155, this model is available for government bid.

Features and Benefits

  • 60 Horsepower PTO Requirement
  • 250 Horsepower Gearbox (160 HP on 4125 model)
  • Chain Guard Safety Deflectors
  • 3 Optional Wheel Configurations (2 for 4125 model)

Who Should Buy

  • General Mowing
  • Pasture Maintenance
  • Shredding Crops and Stalks
  • Roadside and Right-of-Way Mowing
  • Commercial Mowing
  • Farm Use
  • Heavy-Duty Agriculture Use
  • Industrial Mowing


Industry-leading toughness. Industry-leading warranty.

Rhino products are built to take on whatever you can throw at them. But if something should break, you’ll be glad to know our warranties are just as strong. See your local Rhino dealer for complete details.

Full Machine Warranty



Limited Gearbox Warranty



* 5 Year Commercial

Gearbox Seal Warranty



Limited Driveline Warranty




Cutting Width10' 6"12' 6"15'
Transport Width *88''101.9"96''
Transport Height *80''73.2"80''
Overall Width *133''156.5"187''
Overall Length *183''171.2"183''
Cutting Height *2''-14''
Self-Leveling Height AdjustmentHydraulic Cylinder
Jack StandStandard
Blade CarrierInfinity
Blades1/2'' x 4'' Parallel Lift
Blade Overlap6''
PTO Horsepower Required60 HP50 HP60 HP
Gearbox Rating (based on field performance) - Divider250 HP160 HP250 HP
Gearbox Rating (based on field performance) - Center & Wing225 HP130 HP225 HP
Gearbox Oil (85W-140)Factory Filled
Output Shaft Diameter3''2"3''
Blade Tip Speed - Center 540 RPM16,286 FPM14,504 FPM16,286 FPM
Blade Tip Speed - Center 1000 RPM16,380 FPM-16,380 FPM
Blade Tip Speed - Wing 540 RPM16,422 FPM14,988 FPM16,422 FPM
Blade Tip Speed - Wing 1000 RPM15,983 FPM-15,983 FPM
Cutting Capacity (Diameter)4 1/2''4"4 1/2''
Driveline Size - MainCAT 6 CVCAT 5 CVCAT 6 CV
Driveline Size - WingCAT 5CAT 4CAT 5
Driveline ProtectionSlip Clutch
Deck Thickness7 GA10 GA7 GA7 GA
Side Skirt1/4'' AR400
Military Grade Steel
10 GA1/4''1/4'' AR400
Military Grade Steel
Tires & WheelsRhinoTrax, Foam Filled, LaminatedRhinoTrax, LaminatedRhinoTrax, Foam Filled, Laminated
Wing Lift HydraulicsStandard
Wing Flex (Degrees)90° Up/25° Down
Wing Flex - Operational (Degrees)45° Up/25° Down
Safety Tow ChainStandard
LED Light KitStandard
Safety DeflectorsChain GuardsSingle or Double Chain Guards
Tongue Weight1,870 lbs1,200 lbs1,840 lbs1,870 lbs
Weight (Approx)5,400 lbs4,000 lbs5,395 lbs5,455 lbs

4105 Manuals

4125 Manuals

4150 Manuals

4155 Manuals

* Dependent on tire size
** Gearbox Ratings Based on Field Performance


Check Out Great Financing Options From Rhino

It's never been easier to own a Rhino with retail financing plans through participating U.S. dealers. Contact your local Rhino dealer for details.

See All Financing Options


For 36 Months

0% APR financing for 24 - 36 months on all new RhinoAg Flex-Wings, Single Spindles, and Multi-Spindles. Minimum amount financed is $3,500 or more. See dealer for full details.