Bush Hog® 3815 Flex-Wing Rotary Cutters

The Heavy Weight

The 3815 is the heaviest built Bush Hog® Flex-Wing for the toughest cutting conditions. It is recognized by right-of-way contractors and large land owners as the Flex-Wing that can perform over the most rugged terrain. The ease of maintenance features and durability, reliability and performance make the 3815 the highest value for your investment.

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

Performance Features

  • Wing and center skids are 3/8-inch thick for extended wear and outside edges are turned up at 45 degrees to stop heavy ground contact that might damage the sidebands.
  • 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.
  • Free wing float without movement of the hydraulic cylinder rod is 22° down and 45° up.
  • Improved suspension that absorbs more shock loads at the tires.

Construction Features

  • Industry first — 3-inches O.D. output shaft in cutting gearboxes.
  • Reinforced blade pans for maximum durability in heavy cutting conditions.
  • Wing drivelines are ASAE Cat.5 for use in heavy cutting conditions.
  • Patent Pending oil sight gauge takes the guess work out of checking the oil. In less than 10 seconds, all three cutting box oil levels can be checked and rechecked
  • E-Z lube drivelines are quick and easy to service. All grease fittings on the PTO CV driveline and wing drivelines align for quick location of grease points, reducing service times.

Safety Features

  • Seven gauge deck plates for stronger decks that are less susceptible to damage.
  • Heavy, durable axle arms withstand the shock and bending loads generated when used on the roughest terrain.

Product Features

The Patent Pending oil sight gauge takes the guess work out of checking the oil. In less than 10 seconds, all three cutting box oil levels can be checked and rechecked as often as you walk around the machine. Never climb onto the cutter again to check the gearbox oil levels.

 

Bush Hog’s E-Z lube drivelines are quick and easy to service. All grease fittings on the pto CV driveline and wing drivelines align for quick location of grease points. Since all grease fittings on all drivelines are in an up position on every 5th revolution, service times are reduced.

Specifications

Models
3815
*Transport Height
7-feet 3-inches
**Transport Width
8-feet 2-inches
Cutting Width
15-feet
Cutting Height
2-inches to 14-inches
Hitch
Self Leveling, “Perma-Level”
Minimum Tractor h.p. @ PTO
60
Side Band
1/4-inch x 12-inches
Blades
1/2-inch x 4-inches
Blade Holder
Round
PTO Drivelines
ASAE Cat 6
Wing Drivelines
ASAE Cat 5
Wing Flex
22° down / 87° up
Wing Free Float
22° down / 45° up
Splitter Gearbox Rating
250 HP
Cutting Gearbox Rating
225 HP
Gearbox Warranty
6-years
Blade Tip Speed
16,289 FPM @ 540 PTO / 16,000 FPM @ 1000 PTO
Cutting Capacity
4.5-inches diameter
Top Deck, Center Section
11-gauge
Bottom Deck, Center
7-gauge
Deck, Wings
7-gauge
Axle Cushions
Springs @ each wheel
Wing Adjustment
Turnbuckles
Grass/ Crop Distribution
Optional baffles
Wing & Center Hydraulics
Standard
Safety Tow Chain
Standard
*Measured @ max. Transport heightHitch
**Measured wing skid to wing skid when folded

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