SpecificationsThe DifferenceComparison Chart
Gearboxes – 540 RPM or 1,000RPM It has three base mounted 250 HP spindle gearboxes. One base mounted 275 HP divider box. All gearboxes have malleable housings, forged alloy steel, carburized and hardened gears and shafts, and tapered ball bearings. It also features a 20 splined 1 3/4″ input shaft, 2 1/8″ output shaft on spindle boxes.

Drive Shafts – Shielded PTOs are made from the finest quality propeller shaft materials and needle bearing universal joints. Series 6;80-degree constant velocity main drive shaft, with Series 8 intermediate and wing driveshafts.

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

Blades – 1/2″ by 4″ material, alloy spring steel, airlift design that free swing when encountering obstructions. Also, it has a 7″ blade overlap for better cutting. Blade tip speed: 16,750 FPM.

Wheels – 8 treaded laminated tires standard. Independent shock absorbing system for all-wheel axles.
Optional: Aircraft tires.

Dimensions – Cutting width: 20′.
Rated to cut up to 4″ diameter.
Cutting height: adjustable from 1″ to 19″.
Overall width: 244″.
Overall length: 216″.
Transportation width: 101″.
Cutting height for aircraft and implement tires: 1″ to 20″

Transportation width: 111″

Weight – Standard tires and single curtain chains: 5,710 lbs.

Bush-Whacker Special Deck – 10 Gauge Material. 1/2″ frame skeleton deck for strength and weight savings. Smooth top design for easy cleaning.

Hydraulic Adjustments – One cylinder controls height adjustments for center and wing sections. Hydraulic lift cylinders control the raising and lowering of flexible wings. The wings may be raised to 94 degrees above horizontal and lowered to 22 degrees below the horizontal cutting plane.

Other Standard Features Include – Replaceable center and wing skid shoes, transport locking bars for each wing, heavy-duty tongue assembly with dual leveling rods, hydraulic hose holder, jack for easy hookup and unhooking from a tractor, spring Assisted wing lowering for unfolding on an incline, linked suspension for the automatic wing to center deck-leveling.


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.

  • 10 gauge deck.
  • Structural frame of the mower is 1/2″ thick vertical T-Ribs.
  • 3/8″ thick sides instead of 1/4″ flat steel.
  • Gearboxes are mounted to 1/2″ plates that are welded to the 1/2″ frame members.
  • 8-bolt mounting on gearboxes boltheads are tack-welded to the bottom of deck so one man can tighten the nuts or change the gearbox.
  • Hinges – 3″ by 4″ tubing with grease fittings.

Comparison 20′ Brush Cutters

Brand Bush-Whacker Bush Hog Land Pride Woods Rhino
Model HD-240 2720 RC5020 2400X FR240
Cutting Heights 1″-20″ 2″-14″ 2″-14″ 2″-15″ 2″-16″
Cutting Capacity 4″ 2.5″ 3″ 4″ 3″
Deck Thickness 10 Gauge 10 Gauge 3/16″ Dual Deck 10 Gauge
Side Skirt Thickness 3/8″ 1/4″ 1/4″ 1/4″ 1/4″
Divider Gearbox HP 275 HP 235 HP 250 HP 250 HP 250 HP
Spindle Gearbox HP 250 HP 190 HP 210 HP 210 HP 210 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 16,750 FPM 16,328 FPM 17,377 FPM 16,300 FPM 16,713 FPM
Blade Overlap 7″ 6″ 6″ 6″ 6″
Weight 5,710 6,800 6,528 7,740 7,590
Safety Deflectors Chain Guards Chain Guards Rubber or Chains Rubber or Chains Chain Guards
Standard Tires Laminated Laminated Options Laminated Laminating
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 7 Year Limited 6 Year Limited 6 Year Limited

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.