Loftness - Model G4 -Carbide Cutter

Two-Stage Cutting Chamber

A One-Two Punch: The efficiency behind the Carbide Cutter G4 can be found in its two-stage cutting chamber. Material that enters the spinning rotor (clipping at 2,000 to 2,400 rpm) is forced through moving carbide teeth and the primary shear bar. New for the G4, the primary shear bar has been made adjustable so the clearance can be narrowed or widened depending upon the desired material size and production rate. From here, the partially reduced material passes smoothly to the secondary cutting chamber behind the front bumper, where it’s processed further before being discharged toward the ground.

Cutting Edge Innovation

Design Innovations That Put You On The Cutting Edge Of Performance 

1. Precisely engineered spiral/staggered tooth pattern assures efficiency and single-tooth contact with the work surface at all times.
2. Machined anti-wrap design protects the bearings from debris and wrapping of vines.
3. Skid shoes adjust from 0.5 inches to -1.5 inches to allow mulching below grade.
4. New for G4, primary shear bar is now adjustable to impact particle size and production rate.
5. Standard V-Drive (variable-displacement motor) is a powerful production booster. New for G4, 37-percent larger for more torque and faster recovery.
6. High precision robotic welds on rotor tooth mounts are extra long for increased strength and lifespan.
7. Laser-cut body components made from premium strength steel.
8. Abrasion-resistant steel used in high-wear areas.

Felling Large Standing Trees
The unique body shape and hitch angle allow the G4 to be rolled back to expose the knives when cutting trees, thus eliminating the need for a hydraulic door.

Shaving Off Large Material
The rear of the cutter can be lowered to contact the trunk and control cutting depth. This helps prevent logs from being ejected to the rear.

Reverse Mulching
Tilting forward while backing up pulls the downed material against the shear bar for more efficient cutting, as well as producing a finer particle size. A second recutter bar at the discharge reduces material further and directs it to the ground.

Forward Mulching
The rear of the cutter can be lowered close to the ground, trapping material in the cutting chamber. Adjusting the height of the skid shoes can allow mulching even below grade.

Two-Stage Cutting Chamber

Material that enters the spinning rotor is forced through moving teeth and a new, adjustable primary shear bar, the clearance of which can be narrowed or widened depending upon the desired material size and production rate. This partially reduced material then passes smoothly to the secondary cutting chamber behind the front bumper, where it`s processed further before being discharged toward the ground.

Synchronous Belt Drive

The positive drive, cog belt and sprocket design increase efficiency and require less maintenance than other drive types.

Adjustable Skid Shoes

Skid shoes on the G4 now adjust from 0.5 inches to minus 1.5 inches to allow for mulching below grade.

Machined Anti-Wrap Bearing Protector

The rotor ends are machine turned to mate with close tolerance, machined anti-wrap rings, resulting in minimal debris in the bearing chamber.

Adjustable Push Bar

Complete with welded claw hooks, this bar can push falling brush and trees away from the power unit, or pull them into position for proper feeding into the head.

New Staggered/Spiral Tooth Pattern

An improved staggered/spiral tooth pattern assures single-tooth contact with the work surface at all times, as well as optimal balance on the rotor.

Premium Strength Steel Housing

Body components are laser cut from premium strength steel to assure the utmost in rugged reliability. Abrasion resistant steel is used in high-wear areas.

Industrial Rotor Components

Spinning at 1,600-2,000 RPM, the G4`s rotor is 17-inches in diameter with 2 3/16-inch bearings, and features robotically welded, forged steel knife holders.

Safety Elements

To keep flying debris at a minimum, steel deflector chains run the entire length of the attachment. A built-in hydraulic braking system quickly brings the rotor to a stop at shutdown.

Performance Monitoring

An on-board PSI gauge monitors the load on the hydraulic system, which enables the operator to get peak performance out of the G4 attachment.

Universal Skid Steer Mount

The G4 can attach to any skid steer thanks to a universal mount.

Increased Visibility

A lower profile improves visibility for the operator, thus increasing safety, productivity and efficiency.

Custom Hydraulic Control Valve

Incorporates a system high-pressure relief valve to protect from pressure spikes at the source. Also includes an anti-cavitation shutdown circuit.

Hydraulic Hose Routing

Improved on the G4 with shorter hoses that reduce the chance of binding, yet allow for full range of motion without damage.

Hoses are included (no couplers).

Standard Carbide Tooth

Designed to withstand the gamut of operating conditions, from ground contact to treetops. It offers a blend of aggressive cutting actions and rugged construction, while remaining low cost. This is the definition of a heavy-duty tooth.

Quadco Planer Blade

Reversible with ultra-sharp, heat-treated steel knife edges, the Quadco effortlessly slices through trees and vegetation, as opposed to shredding and tearing. It can be rotated on site for a fresh cutting edge, or sharpened to extend the blade life.

Hard-Surface Quadco Blades

A hardened surface on the outside of these Quadco blades wears at a slower pace than the inside, creating a self-sharpening effect for long-lasting performance. These cutting teeth are more ideal for use in loam or sandy soil, and are not recommended for rocky conditions.