Cat® D7G Series 2 Crawler Dozer

Basic Machine Parameters

[Dimensions & Weight] Overall Length 6000mm × Width 2560mm × Height 3294mm, Operating Weight 20580kg (standard configuration only, excluding all optional accessories)

I. Standard Configuration

Powertrain

Equipped with Cat 3306 DITA inline six-cylinder turbocharged diesel engine, displacement 10.5L, rated net power 150kW (202HP), peak torque 920N·m, mechanical direct injection fuel supply. Series 2 upgraded fuel injection & cooling system for lower fuel consumption. 4-forward & 3-reverse planetary power-shift transmission with torque converter drive. Clutch-brake differential steering, integrated wet multi-disc service brake and spring-applied hydraulic release parking brake, complying with ISO safety standards for dozers. Standard automatic hydraulic track tensioner & fully sealed lubricated track links. Max forward speed 10.8km/h, reverse speed 12.7km/h.

Hydraulics & Working Equipment

Load-sensing variable displacement piston hydraulic system with 102L hydraulic oil tank, independent hydraulic cooling radiator, real-time main circuit pressure monitoring and dual-stage suction & return oil filtration system. Series 2 optimized hydraulic flow distribution for faster implement response. Standard 3660mm straight angling A-blade, standard capacity 2.9m³, maximum cutting depth 480mm, ±28° blade tilt angle with floating leveling function for subgrade construction & site grading.

Machine Configuration

Fully enclosed shock-absorbing ROPS/FOPS safety cab (Series 2 widened cab vision & thickened shock mounts). Standard heating & ventilation system, suspended shock-absorbing operator seat and mechanical fault monitoring instrument panel. Full 24V DC electrical system with real-time alarm modules for engine coolant temperature, oil pressure and hydraulic oil temperature. Standard medium undercarriage, factory-fitted 560mm single-grouser steel track shoes, track gauge 1981mm, track ground contact length 2720mm, minimum ground clearance 349mm, 6 track rollers per side.

Service Capacities

Engine oil: 27L
Total hydraulic system oil: 102L
Final drive gear oil: 8L per side
Coolant: 45.4L
Fuel tank capacity: 415L

II. Optional Configuration (Dimension & Weight Increment Marked for Each Item)

Cab Options

1. Remote central door lock: +4kg weight, unchanged overall dimensions
2. Proportional pilot control levers: +6kg weight, unchanged overall dimensions
3. On-board radio audio system: +5kg weight, unchanged overall dimensions
4. Heated seat & electrically heated rearview mirrors: +9kg weight, unchanged overall dimensions
5. Single-side rearview monitoring camera: +3kg weight, unchanged overall dimensions
6. High-strength steel protective window mesh: +18kg weight, width +25mm, height unchanged
7. Foldable sunshade protective canopy: +32kg weight, overall height +220mm

Travel & Drivetrain Options

1. Reinforced mining heavy-duty final drive assembly: +26kg per side, total weight +52kg, unchanged dimensions
2. Automatic reversible cooling fan: +8kg weight, unchanged dimensions
3. Multi-stage heavy-duty dust-proof air cleaner: +12kg weight, overall height +40mm
4. Sealed low-temperature cooling kit for frigid regions: +18kg weight, unchanged dimensions
5. Widened 610mm triple-grouser track shoes (replacement for standard 560mm tracks): overall width +50mm, total weight +110kg

Working Equipment Options

1. Auxiliary hydraulic piping for rear ripper: +14kg weight, unchanged dimensions
2. Narrow trimming small blade (replacement for standard straight angling blade): -30kg weight, unchanged overall length
3. Semi-U heavy rock SU blade (replacement for standard straight angling blade): +42kg weight, unchanged overall length
4. Extended 4000mm large-capacity SU blade assembly (replacement for standard 3660mm blade): overall length +360mm, +86kg weight
5. Thickened wear-resistant cutting edges & side guard assembly: +22kg weight, unchanged dimensions
6. Three-shank parallelogram ripper assembly: overall length +700mm, +152kg weight

Safety & Special Site Options

1. ID chip anti-theft immobilizer system: +4kg weight, unchanged overall dimensions
2. Remote fault diagnosis & calibration module: +6kg weight, unchanged overall dimensions
3. All-weather high-brightness LED auxiliary work light group: +11kg weight, overall height +45mm
4. -35°C low-temperature cold start preheating kit: +9kg weight, unchanged dimensions
5. Reinforced thickened main frame & blade bracket: +86kg weight, overall length +50mm
6. Complete mine heavy-duty wear-resistant steel tracks: overall width +50mm, +126kg weight
7. Full-machine full-coverage anti-collision protective frame: +40mm width on each side (total width +80mm), +142kg weight