BLUE DIAMOND | Rotary Cutter | Flex Wing Brush Hog For Tractor

Power through tall grass, weeds, and brush with BLUE DIAMOND’s Flex-Wing Rotary Cutters. Available in two capacities—a 12' Flex-Wing for medium-duty work on compact tractors as small as 35 hp, and a 15' Flex-Wing for tougher jobs on tractors starting at 55 hp. Built to protect your machine and maximize field clearance, these rotary cutters handle brush up to 2" (12') or 3.5" (15') in diameter with confidence.

Features

12' Flex-Wing Rotary Cutter

Cutting width: 144" (12')
Deck and build: 10 GA deck, 11" deck height; smooth top deck with single spring suspension
Power and drive: Minimum 35 hp (gear-drive trans); Swivel Clevis hitch; protected gearboxes and drivelines
Blades and transmission: Three independent spindles, two free-swinging blades each; 1/2" x 3" blades; 540 RPM gearboxes
Protection and safety: Slip clutches protect gearboxes/drivelines; driveline shields, clutch shields, chain discharge shields; towing safety chain
Capacity and efficiency: Cuts up to 2" material; blade tip speed 15,657 FPM; blade overlap 6"
Warranty: 2-year limited warranty

15' Flex-Wing Rotary Cutter

Cutting width: 180" (15')
Deck and build: 7 GA deck, 9.5" body depth, 1/4" x 12" side skirts; heavily braced underside
Power and drive: Minimum 55 hp; Swivel Pivot hitch; triple spring suspension; wing flex 88° up / 22° down
Blades and transmission: Three spindles, two free-swinging blades each; 1/2" x 4" blades; 540 RPM gearboxes
Protection and safety: Front and rear chain discharge shields; clutch shields; towing safety chain
Capacity and efficiency: Cuts up to 3.5" diameter material
Warranty: 5-year limited warranty
Additional features: PTO input ASAE Cat 8; Constant Velocity wing drive (ASAE Cat 6); wing flex 88° up / 22° down

Benefits

Designed to boost field productivity while protecting your equipment, these BLUE DIAMOND cutters offer:

Fewer passes, quicker field clearance: The wide 12' or 15' cutting widths dramatically reduce the number of passes needed for pasture maintenance and land clearing.
Shock absorption and durability: Independent spindles with free-swinging blades minimize shock when encountering rocks or hidden obstacles, protecting gearboxes and drivelines.
Versatile terrain handling: The 15' model’s 88° up / 22° down wing flex helps maintain an even cut on uneven terrain and slopes.
Tractor compatibility and efficiency: 12' requires only a single hydraulic outlet for compact tractors (as small as 35 hp), while 15' suits higher-horsepower machines for demanding jobs.
Long-lasting protection: Shielded drivetrains and standardized safety shields minimize downtime and maintenance costs.
Confidence with robust warranties: Peace of mind comes with a 2-year warranty on the 12' model and a 5-year warranty on the 15' model.

MODEL	12"
MINIMUM HORSEPOWER	35 hp (Gear-drive Trans)
HITCH	Swivel Clevis
DECK THICKNESS	10 GA
DECK HEIGHT	11”
SIDE SKIRT MATERIAL	3/16”
HINGE RODS	1”
SUSPENSION	Single Spring
OUTBOARD GEARBOX	75hp
SPLITTER GEARBOX	175 hp
GEARBOX	540 RPM
BLADES	1/2” x 3” w/lift
BLADE TIP SPEED	15,657 FPM
BLADE OVERLAP	6”
BLADE CARRIERS	3/16” Formed Plate w/3/4” x 5” x 20” Blade Bar
CUT WIDTH	144"
OVERALL WEIGHT	2,630 LB
CUTTING CAPACITY	UP TO 2"

MODEL	15"
MINIMUM HORSEPOWER	55 hp
HITCH	Swivel Pivot
DECK THICKNESS	7 GA
BODY DEPTH	9.5”
SIDE SKIRT MATERIAL	1/4” x 12”
UNDERNEATH DECK	Heavily Braced
OUTBOARD GEARBOX	190 hp
SPLITTER GEARBOX	235 hp
GEARBOX	540 RPM
BLADES	1/2” x 4”
BLADE TIP SPEED	17,135 FPM
BLADE OVERLAP	6 1/2”
BLADE CARRIER WARRANTY	5 year
WING FLEX	88 degrees up – 22 degrees down
GEARBOX WARRANTY	5 yr. limited
CUTTING WIDTH	180”
OVERALL WIDTH	188”
OVERALL LENGTH	189”
OVERALL WEIGHT	5,175 lbs
CUT HEIGHT	2” – 15”
CUTTING CAPACITY	3.5"
INPUT PTO	ASAE CAT 8 Constant Velocity
WING DRIVE PTO	ASAE CAT 6
SKID SHOES	Replaceable
CHAIN SHIELDS	Standard
TOWING SAFETY CHAINS	Standard
WHEEL TYPE	5 Lug Laminated Standard
BLADE CARRIERS	3/8” Formed Plate w/ 5/8” x 10 ” x 23” Blade Bar

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