Don Allison Equipment, Inc.

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Bush-Whacker ST-120 Elite 10' Flex Wing Rotary Mower

Bush-Whacker ST-120 Elite 10' Flex Wing Rotary Mower

Smooth Top 10' Rotary Cutter. With one flex-wing this beast will give a ditch or highway right-away a clean cut while not being an obstruction to on coming traffic.

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  • Structural frame of mower is 3" channel, 1/4" thick
  • 8 bolt mounting on gearboxes - heads are tack-welded to bottom of deck so one man can tighten the nuts or change the gearbox
  • Blades are 1/2" by 4" instead of traditional 1/2" by 3-1/2"
  • Hinges are 3" by 4" tubing with grease fittings
  • Replaceable center and wing skid shoes
  • Transport locking bars for wing
  • Heavy-duty tongue assembly with dual leveling rods
  • Hydraulic hose holder
  • Jack for easy hookup and unhooking from tractor
Bush-Whacker ST-120 Elite Flex Wing Rotary Mower Specifications
540 rpm or 1,000 rpm
Two spindle gearboxes, 250 hp, base mounted, 1:1.6 ratio. One divider box 275 hp, base mounted. All gearboxes have maleable housings, forged alloy steel, carburized and hardened gears and shafts, tapered and ball bearings. 20 splined 1-3/4" input shaft, 2-3/8" output shaft on spindle boxes.
Drive Shafts
Shielded PTOs made from the finest quality propeller shaft materials and needle bearing universal joints. Category 5, 80-degree constant velocity main drive shaft, Category 4 intermediate and wing drive shafts.
Slip Clutch
Two heavy-duty clutches with spring type adjustment and four friction discs.
1/2”x 4" material, alloy spring steel, airlift design, free-swinging when encountering obstructions, 8" overlap for better cutting. Blade tip speed: 16,768 fpm.
Five solid rubber tires standard. Independent shock absorbing system for all wheel axles. Cutting height adjustable from 2" to 17". Optional: aircraft tires or implement tires.
Bush-Whacker Special Deck - 3/16" Material
Bush-Whacker Special Deck includes a primary (bottom) deck of 3/16” steel that is welded to heavy duty heavy channel structures. The smooth, easy-to-clean top deck is made of 12 gauge steel and protects the inner support frame. Combined deck thickness: .2921”.
Hydraulic Adjustments
Hydraulic lift cylinders control raising and lowering of flexible wing (winch assembly for manual wing lift is optional). Wing may be raised to 88 degrees above horizontal and lowered to 22 degrees below horizontal cutting plane. Optional: rephasing level lift systems.
Chain Guards
Front & Rear
Cutting Width 10'
Cutting Height Adjustable from 2" to 15"
Overall Width 140"
Overall Length 167"
Transportation Width 80"
Cutting Height w/ aircraft & implement tires 2" to 17"
Weight w/o chains & tires 4,260 lbs
Weight w/ standard tires & single curtain chains 4,980 lbs