SpecificationsThe DifferenceComparison ChartColor Options
Gearboxes – 540 RPM or 1,000 RPM Three spindle gearboxes, 120 HP, base mounted, 1:1.47 ratio. One divider box, 160 HP, base mounted. All gearboxes have malleable housings, forged alloy steel, carburized and hardened gears and shafts, tapered and ball bearings. 6 splined 1 3/8″ 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 6 80-degree constant velocity main drive shaft, Category 4 intermediate, and wing drive shafts.

Slip Clutch – Three heavy-duty clutches with spring type adjustment and two friction discs.

Blades – 1/2″ by 4″ material, alloy spring steel, airlift design. Free swinging when encountering obstructions. 8″ overlap for better
cutting. Blade tip speed: 15,500 FPM.

Wheels – Four solid rubber tires standard. Independent shock absorbing system for all-wheel axles. Cutting height adjustable from 2″ to 15″. Optional: 6 tires, aircraft tires, implement tires, and foam-filled tires.

Dimensions – Cutting width: 15″. Cutting height: adjustable from 2″ to 15″. Overall width: 190″. Overall length: 189″. Cutting height for aircraft and implement tires: 2″ to 17″.

Transportation width: 88″

Weight – Without chains and tires: 3,700 lb.
With standard tires and single curtain chains: 4,340 lb.

Bush-Whacker Special Deck – The smooth, easy-to-clean top deck is made of 10 gauge steel.

Hydraulic Adjustments – Hydraulic lift cylinders control raising and lowering of a 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 the horizontal cutting plane. Optional: rephasing level lift systems.

Other Standard Features Include – Replaceable center and full-length wing skid shoes, transport locking bars for each wing, heavy-duty tongue assembly with dual leveling rods, hydraulic hose holder, park jack for easy hookup, and unhooking from the tractor. Swivel clevis to relieve stress on the tractor drawbar. Chain guards are an added option.


Specifications listed are standard; however, any State Department of Transportation specifications that may differ from standard Bush-Whacker specifications will take precedence and be implemented into production.

  • Structural frame of the mower is 3″ channel, 1/4″ thick.
  • Heavy-duty 3/8″ side skirt with full-length skid shoes.
  • Deck rings standard.
  • Hinges – Structural tubing with grease fittings.
  • 4-bolt mounting on gearboxes – bolt-heads are tack-welded to bottom of deck so one person can tighten the nuts or change the gearbox.

Comparison 15′ MD Brush Cutters

Brand Bush-Whacker Bush Hog Woods Rhino John Deere
Model MD-180 2515 BW15LH F4-15 MX15
Cutting Heights 2″-15″ 2″-14″ 2″-12″ 2″-13″ 3″-14″
Cutting Capacity 3″ 2″ 1.5″ 1.5″ 2″
Deck Thickness 10 Gauge 10 Gauge 11 Gauge 11 Gauge 11 Gauge
Side Skirt Thickness 3/8″ 1/4″ .18″ 1/4″ 1/4″
Divider Gearbox HP 160 HP 160 HP 190 HP 160 HP 250 HP
Spindle Gearbox HP 120 HP 110 HP 160 HP 65 HP 100 HP
Blade Size 1/2″ x 4″ 1/2″ x 4″ 1/2″ x 4″ 1/2″ x 4″ 1/2″ x 4″
Blade Tip Speed 15,500 FPM 15,268 FPM 15,270FPM 14,963 FPM 17,281 FPM
Blade Overlap 8″ 6″ 6″ 6″ 6″
Weight 4,340 4,260 3,120 4,150 4,224
Safety Deflectors Chain Guards Rubber Belting Rubber or Chain Rubber or Chain Chain Guards
Tires Laminated Laminated Options Options Laminated
Mower Warranty 1 Year Limited 1 Year Limited 1 Year Limited 1 Year Limited 1 Year Limited
Gearbox Warranty 5 Year Limited 5 Year Limited 6 Year Limited 6 Year Limited 6 Year Limited
  • Yellow (Standard) PMS 1235

  • Blue PMS 293

  • Red PMS 1795

  • Orange PMS 172

Hall Manufacturing provides a limited warranty of one year on any machine or component, and five years on any mechanical gearbox or gearbox component.

This warranty covers defective materials and workmanship on the complete machine. Limitations and exclusions apply.