Products ST-120

ST-120

Heavy Duty 10 Foot Flex-wing Brush Cutter

A close relative to the ever-popular ST-180, the ST-120’s smooth-top design is one of the most rugged flex-wing brush cutters on the market today. With it’s 4″ cutting capacity and 250 HP gearbox, you will be hard-pressed to find another mower that can outperform the ST-120 in the field or at the cash register.

Product Details

Gearboxes

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 malleable 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. Series 8 Category 6, Category 4 intermediate, and wing drive shafts.

Slip Clutch

Two heavy-duty clutches with spring type adjustment and four friction discs.

Blades

1/2″ by 4″ material, alloy spring steel, airlift design. Free swinging when encountering obstructions. 8″ overlap for better cutting. Bladetip speed: 16,768 FPM.

Tires

Five solid rubber tires standard. Independent shock absorbing system for all-wheel axles. Optional: 25” Treaded Laminate, Used Aircraft, or Used Foam-Filled Aircraft

Dimensions

Cutting width: 10′. Overall width: 140″. Overall length: 167″. Transportation width: 80″. Cutting height for aircraft and implement tires: 2″ to 17″.

Transportation width:

88″. for aircraft and implement tires: 2″ to 17″.

Weight

Without chains and tires: 4,260 lb.
Total weight: 4,980 lb.

Bush-Whacker Special Deck

Bush-Whacker Special Deck features a primary (bottom) deck of 7 gauge steel that is welded to heavy-duty channel structures. The smooth, easy-to-clean top deck is made of 12 gauge steel that protects the inner support frame. The combined deck thickness is .2921.

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, parking jack for easy hookup, and unhooking from a tractor. Chains: Standard; Double-Row Chain Guards are an option.

The Difference

  • Heavy-duty 3/8″ side skirt with full-length skid shoes

  • Rated to cut up to 4′ diameter brush.

  • Hinges 3″ x 4″ tubing with grease fittings.

  • Hinges – Structural tubing with grease fittings.

  • 8-bolt mounting on gearboxes – bolt-heads are tack-welded to bottom of deck so one person can tighten the nuts or change the gearbox.

Specifications

Cutting Height

2"-15"

Cutting Capacity

4"

Deck Thickness

7 Gauge/12 Gauge

Side Skirt Thickness

3/8"

Divider Gearbox HP

275 HP

Spindle Gearbox HP

250 HP

Blade Size

1/2" x 4"

Bladetip Speed

16,768 FPM

Blade Overlap

8"

Weight

4,980 lbs

Safety Deflectors

Chain Guards

Tires

Laminated

Mower Warranty

1 Year Limited

Gearbox Warranty

5 Year Limited

Product Features

Product Features

Specifications

Cutting Height

2"-15"

Cutting Capacity

4"

Deck Thickness

7 Gauge/12 Gauge

Side Skirt Thickness

3/8"

Divider Gearbox HP

275 HP

Spindle Gearbox HP

250 HP

Blade Size

1/2" x 4"

Bladetip Speed

16,768 FPM

Blade Overlap

8"

Weight

4,980 lbs

Safety Deflectors

Chain Guards

Tires

Laminated

Mower Warranty

1 Year Limited

Gearbox Warranty

5 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.