The CAT D7R is a classic medium-duty crawler dozer from Caterpillar, renowned for exceptional reliability, powerful performance, and long service life. Powered by the Cat C9 ACERT 6-cylinder turbo diesel engine, it delivers 240HP (179kW) with strong low-speed torque and excellent fuel efficiency. Equipped with a heavy-duty straight blade and optional ripper, it excels in pushing, grading, and ripping tough materials. The durable undercarriage, reinforced frame, and load-sensing hydraulics ensure stability and productivity in harsh job sites. Widely used in road construction, mining, landfill, and large-scale earthworks, the CAT D7R is a top choice for contractors seeking a robust, low-maintenance dozer.
Technical Parameters
- Model: CAT D7R Crawler Dozer
- Engine: Cat C9 ACERT, 6-cylinder turbo diesel
- Rated Power: 179kW / 240HP (ISO 9249)
- Displacement: 8.8L
- Operating Weight: ~24,962kg (55,041 lbs)
- Blade Type: Straight Blade (S-Blade)
- Blade Capacity: 3.2–3.8 m³
- Max Blade Width: 3,900mm
- Travel Speed: Forward 3.5–10.5 km/h; Reverse 4.5–13.8 km/h
- Fuel Tank Capacity: 415L
- Overall Dimensions (L×W×H): 6,500×3,900×3,200mm
Core Advantages
Reliable Cat C9 ACERT Engine
Original Caterpillar C9 ACERT engine, 240HP power, advanced electronic control, strong torque, low fuel consumption, and global parts support. Meets Tier 2 emission standards, suitable for various regions.
Heavy-Duty Blade & Strong Pushing Force
Robust S-blade with large capacity, reinforced cutting edge, and excellent wear resistance. Delivers superior pushing force for heavy earthmoving, grading, and ditching tasks. Optional single-shank ripper for breaking hard soil/rock.
Durable Undercarriage & Track System
Heavy-duty track frame, sealed and lubricated track links, and high-strength rollers. Reduces ground pressure, provides excellent traction on mud, rock, and uneven terrain. Long wear life, low maintenance costs.
Comfortable & Safe Cab Design
Isomount cab with low vibration and noise, large single-pane window for excellent visibility. 15° offset adjustable seat, full ergonomic controls, and HVAC system. Integrated ROPS/FOPS for operator safety.
Efficient Hydraulic & Control System
Load-sensing hydraulic system with 177 L/min flow, precise blade/ripper control. Pilot-operated joysticks reduce operator fatigue. Compatible with Cat AccuGrade™ 3D grade control system for high-precision grading.
Applications
Road Construction: Subgrade preparation, roadbed leveling, shoulder shaping
Earthmoving: Large-scale excavation, land clearing, site grading
Landfill & Waste Management: Waste compaction, site maintenance
Mining & Quarrying: Stockpile dozing, haul road maintenance, overburden removal
Land Development: Residential/commercial site prep, drainage ditching
