Product Focus: Dozers

Dozers have muscle to dislodge tree stumps
The New Holland D75, D85 and D95 crawler dozers, rated at 75 horsepower, 84 horsepower and 96 horsepower, respectively, deliver blade angle forces up to 31,000 pounds and blade angle torque up to 85,200 foot-pounds. The hydrostatic transmission offers smooth speed changes up to 6 mph and automatically adjusts the dozer’s speed and torque to match changing load conditions. The counter-rotating track lets you make 180-degree spot turns for fast direction changes and easier maneuvering in tight spaces.

Match your dozing speed to jobsite conditions
Komatsu America’s KomStat II line of dozers – the D31EX/PX-21, D37EX/PX-21 and D39EX/PX-21 – come equipped with the company’s Electronic Control Hydrostatic Transmission and Palm Command Control System. Allowing for variable or intermediate speed selection, the transmission gives you 20 increments of speed adjustment while the intermediate speed selection provides three distinct ranges. Both modes allow you to properly match the machine’s dozing speed to jobsite conditions. The dozers also have adjustable reverse speed control.

Operator has clear sight line to front, rear work areas
The T-Series track-type tractors from Caterpillar – the D8T, D9T and D10T – are powered by ACERT Tier 3-compliant engines. An engine controller manages fuel delivery and airflow, monitoring engine and machine conditions while keeping the engine operating at peak efficiency. A tapered hood, notched fuel tank and narrow single-shank ripper carriage give the operator a clear line of sight to both front and rear work areas. Steering, machine direction and gear selection are clustered in a single control handle for one-handed operation.

Take your pick among J-Series main frames, track frames and blade options
The John Deere 750J and 850J dozers offer a choice of five main frames, 12 track frames and 13 blade options. The 12 track frame choices provide the flexibility to deliver multiple undercarriage configurations for each option. The machines offer a dual-path, hydrostatic-drive power train and a speed-in-grip transmission control system. Operating characteristics can be tailored to your preference using an electronic display monitor on the front console.

Dozing muscle in a compact unit
The C87D dozer from Rayco Manufacturing is a compact, 8,400-pound machine that can be easily hauled on a skid-steer trailer. Powered by an 87-horsepower turbocharged diesel, the machine’s compact size lets you use it in tight areas. Hydrostatic, pilot-operated joystick controls provide fast and responsive blade function. Visibility to the 86-inch, six-way articulating blade is enhanced with the machine’s cab forward design, allowing you to accurately gauge material flow. Single grouser tracks give gripping power to this compact unit, allowing it to tackle rough terrain. The unit comes standard with rear hydraulics and offers the options of a ripper, air conditioned and heated cab and brush guard.

Series 4 line offers fourth generation Litronic system
Liebherr’s Series 4 dozer line features two new Litronic models, the PR 724 and PR 734. The models feature a hydrostatic driveline that provides increased pushing power, tractive force and counter-rotation. Now in its fourth generation, the Litronic system includes an integral operating-data memory that can be read on the multifunctional cab display. The system can also match the vehicle’s steering response to its travel speed, resulting in increased working efficiency and productivity on curved paths.

Keep a full blade of material throughout a turn
Case’s largest dozers, the 205-horsepower 1850K and the 145-horsepower 1650K, can easily negotiate varying site conditions with their hydrostatic PowerSteer system. The system offers single-lever control of direction and steering. One hydrostatic motor and planetary gear powers the tracks at variable speeds during turns for smooth steering. With 100 percent of the torque available to either side, you have the ability to infinitely adjust the turn. The amount that one track slows, the other track speeds up. By turning with continuous power you’re able to keep a full blade of material throughout the turn.