Bush Hog® 3112 Flex-Wing Rotary Cutter

New Heavy-Duty 12' Flex-Wing

The 3112 is a versatile, heavy-duty 12′ Flex-Wing that continues the pedigree of our larger, commercial Flex-Wings. Taking design cues from our 4115, the 3112 is built to perform in a variety of applications from routine pasture and orchard mowing to roadside maintenance. Designed to cut heavy grasses and brush up to 3 ½” in diameter, these mowers get the job done in virtually any environment. It is equipped with the latest performance and convenience features like durable, stoutly-braced 10ga Decks, ¼” Sidebands, 7ga Round Blade Pans, ½” x 4” blades with 8” overlap to ensure impeccable cut quality, dual EZ-adjust leveling rods, and ½” thick replaceable cast wing skids. Each axle arm contains custom shock absorbing isolators to glide over obstacles, while significantly reducing shock loads for an improvement you can feel in the tractor seat. 130HP gearboxes are integrated into heavily gusseted stands that resist torsional forces and impacts. Other standard equipment includes features like:
o Adjustable Driveline Assist to take the load off the heavy Cat 6 CV driveline while attaching and removing from the tractor PTO
o Perma-Level+ Hitch for easier drawbar hookups
o Increased tongue transport height range to fit virtually any drawbar height
o Color-coded aluminum hydraulic hose handles to reduce hand-slipping and improve ergonomics
The 3112 comes standard with a 540 CV Cat 6 Driveline, Cat 4 Wing Drivelines, Center Dual Axles, and 2 hydraulic hoses. It is available with or without Deck Rings, Single or Dual Wing Axles, and Single or Double Row Chains. Like all of our cutters, the New 3112 12’ Flex-Wing is made with pride in the USA and comes with the a 10-Year Gearbox Limited Warranty.

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

Performance Features

  • Custom axle isolators reduce g-force shock loads travelling through the axle and deck and eventually felt in the tractor seat
  • Replaceable 1/2″ Cast Wing Skids for extended wear during heavy ground contact
  • Angled rear deck section with 41% longer skids improve durability during side and backward impacts
  • Center section axle spindles are centered on the axle arm for equalized loading of vertical forces
  • Grease fittings and spring steel bushings at axle pivot points for longer life
  • Wing decks free float 22° down and 45° up without engaging the hydraulic cylinder for longer cylinder life
  • Rollover and Clevis Stops on the Perma-Level+ Hitch make tractor hookups easier
  • Increased Cutting and Transport Height by 2″ to mow down taller vegetation and facilitate loading on trailers

Construction Features

  • Smooth-top 10ga deck plates are heavily-reinforced for years of trouble-free service
  • Fully-braced gearbox stands are built to withstand years of punishing mowing conditions
  • Balanced 7ga round blade pans glide over obstacles and protect the gearbox output shaft from harmful impacts
  • 5″ x 7″ axle arm tubes for substantial strength and durability
  • ASAE Cat 6 Input Drivelines and ASAE Cat 4 Wing Drivelines with slip-clutches for use in heavy cutting conditions
  • Grease fittings in our E-Z lube drivelines align for reduced service time
  • Patented oil sight windows make for quick and easy oil level checks
  • Large, replaceable skids behind the tongue help protect blade carrier structure and gearbox output shaft from ground contact

Safety Features

  • Single or Double Row Chains to keep flying debris within the deck
  • Cast transport lock supports the weight of the cutter while transporting
  • Cast Wing Locks hold the wings stable when in an upright position
  • Rollover and Clevis Stops reduce rotating and swinging hitch components while attaching to tractor drawbar
  • 360° coverage around rotating drivelines
  • LED safety lighting standard

Product Features

Available with or without Deck Rings

130HP gearboxes are driven by Cat 4 Wing Drivelines with slip-clutches

 

Heavy-Duty axles are cushioned by custom-tuned rubber isolators in each axle arm

Our Patent-Pending Driveline Assist carries the load when connecting the heavy Cat 6 CV driveline to the tractor PTO

Literature & Manuals

Good for Tractors rated 40hp or under

Specifications

Models
3112
Cutting Width
12.2′
Cutting Height
1 1/2″ – 14″
Cutting Capacity
3 1/2″
Transport Width*
6′ 11″
Transport Height**
6′ 5″
Transport Length***
15′ 2″
Approximate Weight (lb.)
4,300
Approximate Tongue Weight (lb.)
1,400
Minimum Tractor PTO HP
55
Hitch
“Perma-Level+” standard
Center Deck
10ga
Wing Decks
10ga
Wing Cutting Angles
22° Down and 45° Up
Wing Level Adjustment
Turnbuckles
Sidebands
1/4″ x 12″
Transfer Gearbox (HP)
160
Cutting Gearboxes (HP)
130
Input Driveline
Category 6
Wing Drivelines
Category 4
Blade Holder
7ga Round
Blades
1/2″ x 4″
Blade Tip Speed (fpm)
15,500
Axle Suspension
Cushioned Isolators in Each Axle Arm
Center & Wing Hydraulics
Included
Safety Tow Chain
Included
Distribution Baffles
N/A
PTO Driveline Assist
Standard
Warranty
10-Year Gearbox Limited Warranty
1-Year Machine Limited Warranty

 

*Measured at maximum transport height.

 

**Measured at outside of wing skids.

 

***Measured from hitch pin to axle spindle at transport height

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