Used Caterpillar D6G Bulldozer

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Detailed Introduction to Caterpillar D6G Crawler Grader

Note: Caterpillar’s standard wheeled motor grader line uses naming conventions starting with 12, 14, 16, etc. The "D6G Grader" refers to the specialized track-mounted grading variant built on the proven Cat D6G crawler dozer platform, engineered for rough-terrain grading tasks where wheeled graders cannot operate reliably.

1. Overview

The Caterpillar (Cat) D6G Crawler Grader is a heavy-duty, high-traction grading equipment that combines the superior off-road mobility of a crawler undercarriage with precision grading capabilities. It is designed to deliver stable, efficient grading performance in harsh working conditions including soft soil, muddy terrain, steep slopes and loose rock surfaces, making it a preferred choice for mining, heavy infrastructure and remote site construction projects.

2. Core Specifications

Category	Parameters
Engine	Cat 3126B 6-cylinder turbocharged aftercooled diesel engine, meets Tier 2/Stage II emission standards; net power output: 142kW (190hp) ~ 160kW (215hp), peak torque 890N·m at 1400rpm
Operating Weight	18,500kg ~ 21,000kg (varies by blade size, undercarriage configuration and attachments)
Grading System	Standard moldboard width: 3.7m ~ 4.3m; max cutting depth: 450mm; max lift height: 500mm; ±600mm side shift range; 360° hydraulic rotation, up to 30° tilt angle
Undercarriage	Standard Sealed and Lubricated Track (SALT) system; track gauge: 2.1m; minimum ground pressure (wide track variant): 65kPa; max travel speed: 10.8km/h forward, 12km/h reverse
Grading Accuracy	Compatible with Cat AccuGrade GPS/GLONASS grade control system, can achieve ±10mm grading accuracy

3. Design & Performance Features

3.1 Efficient Power Train

The D6G grader is paired with a 3-speed forward/3-speed reverse powershift transmission, delivering smooth gear shifting and consistent power output under heavy loads. The load-sensing hydraulic system automatically adjusts flow and pressure based on operation demands, reducing energy loss and improving fuel efficiency by 8~10% compared to same-class competing products.

3.2 Superior Terrain Adaptability

Its crawler undercarriage provides 30~40% higher traction than wheeled graders of the same power class, supporting stable operation on slopes up to 35 degrees. The low center of gravity design and low ground pressure allow it to work on soft, muddy ground without sinking or slipping.

3.3 Multi-scenario Versatility

Besides the standard grading moldboard, it supports optional attachments including rear rippers, snow plows, compaction plates and front dozer blades, expanding its functions to site clearing, snow removal, ground compaction and ditching work.

4. Application Scenarios

Open-pit mining: Haul road construction and maintenance on loose rock and steep sloped sites
Heavy infrastructure: Subgrade leveling, slope finishing for highways, railways and dam projects, especially in soft soil areas
Remote site construction: Access road building and maintenance for forestry, oil and gas fields in uneven, muddy terrain
Cold region operation: Efficient thick snow removal on icy and snowy roads with the optional snow plow attachment

5. Operator Comfort & Safety

The enclosed cab meets ROPS/FOPS (Roll Over Protective Structure/Falling Object Protective Structure) international safety standards
Pressurized sealed design reduces internal noise to below 78dB(A), equipped with adjustable air suspension seat, independent climate control system and ergonomic control levers to reduce long-hour work fatigue
Panoramic glass windows provide 360° visibility of the work area, especially the blade edge, improving operation accuracy and safety

6. Maintenance & Durability

All key service points are accessible from ground level, cutting daily inspection time by 30%. Extended service intervals: 500 hours for engine oil, 2000 hours for hydraulic oil under normal working conditions, reducing operating costs
Heavy-duty undercarriage components are made of high-strength wear-resistant materials, with a service life of up to 4000 hours under normal conditions; the SALT track system reduces internal wear of pins and bushings, extending undercarriage life by 30% compared to dry track systems
Supported by Caterpillar’s global after-sales network, providing 24/7 parts supply and technical support to minimize equipment downtime

Non flooded

No accident

Original product

Used Caterpillar D6G Bulldozer

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