Bush Hog® 1812 Flex-Wing Rotary Cutter

The 1812 Flex-Wing Rotary Cutter is designed for small tractors with a PTO horsepower of 50 to 75. The narrow cutting width of 12-feet makes this Flex-Wing ideal for rolling terrain where a wide rigid cutter will not perform as well. Grass, weeds, and brush up to 1 1/2-inch diameter are no match for the hardened parallel uplift blades. The narrow width is also ideal for orchards with prunings that must be cut into smaller pieces. The 1812 has maintenance friendly features, E-Z cleaning decks, high performance cutting and distribution, and it is built Bush Hog® tough for years of reliable service.

Notes: Unit(s)shown equipped with certain selections and options; please consult with your local Bush Hog dealer for all available configurations.

Performance Features

  • E-Z clean smooth decks are on the center and wings.
  • Wing “free float” without movement of wing hydraulic cylinder rod extends cylinder life.
  • Gearbox oil sight gauge allows the checking of the oil level in a few seconds.
  • PTO driveline holder is standard.
  • Wheel spindles are in halves for economy and ease of maintenance.
  • A single hydraulic hose is standard for lifting. Two hoses are optional for lifting wings independently of center section.

Construction Features

  • Center section cushions are at each axle arm to absorb shocks near the wheels.
  • Replaceable full length sideband skids give maximum protection and strength to the sideband.
  • Wheel hub cap retainers are standard to prevent loss of cap and hub grease.

Safety Features

  • Safety lights for highway travel are standard.

Product Features

Full Length Sideband Skids

Each axle arm on the center section has a rubber cushion to absorb the shock loads near the wheels. Shown with optional dual tires on the center.


Patented oil sight gauge in all three cutting gearboxes for quick and easy monitoring of oil levels.

Good for Tractors rated 40hp or under


Cutting Width
Cutting Height
2-inches to 12-inches
Cast Clevis
Tongue Weight
Estimated Total Weight
Tractor H Range@ PTO
50 to 75
Side Band
1/4-inch x 10-inches
1/2-inch x 3-inches Hi-Uplift
Blade Holder
Oval Pan
PTO Drivelines
ASAE Cat 4
Center & Wing Drivelines
ASAE Cat 3
Wing Flex
22° Down to 87° up
Wing Free Float
22° down to 25° up
Splitter Gearbox Rating
160 HP
Cutting Gearbox Rating
65 HP
Gearbox Oil Sight Gauge
Gearbox Warranty
5 Years
Blade Tip Speed @ 540 pto
14,464 FPM Center/13,930 Wings
Cutting Capacity
1 1/2-inch
Axle Pivot Points
Bushings With Grease Fittings
Axle Cushions, Center Section
Rubber Bumper Near Each Wheel
Wing Adjustments
Safety Tow Chain
Highway Safety Lights
Warranty: 1-year limited warranty; 5-years limited warranty on gearboxes.


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