SD7N bulldozer is 230 horsepower track-type dozer with elevated sprocket, power shift drive, semi-rigid suspended and hydraulic controls.
SD7-230 horsepower, elevated sprocket bulldozer integrate with modular design is easy to repair & maintenance, It relieves oil with difference pressure, the hydraulic system performs protecting environment and save energy with high working efficiency. Safety comfortable operation condition, electric monitoring and ROPS cabin with reliable entire quality, excellent service is your wise choosing.
It can be equipped with straight tilting blade, angle blade, coal pushing blade, U shape blade; single shank ripper, three shanks ripper; ROPS, FOPS, forest defence cabin etc.. It is can ideal machine used in communication, oil field, power, mining etc. large earth moving program.
| Dozer | Tilt |
| (not including ripper) Operation weight (Kg) | 23800 |
| Ground pressure(KPa) | 71.9 |
| Track gauge(mm) | 1980 |
| Gradient |
30°/25° |
| Min. ground clearance (mm) |
404 |
| Dozing capacity (m³) | 8.4 |
| Blade width (mm) | 3500 |
| Max. digging depth (mm) | 498 |
| Overall dimensions (mm) | 5677×3500×3402 |
| including ripper | 7616×3500×3402 |
| Type | CUMMINS NTA855-C280S10 |
| Rated revolution (rpm) | 2100 |
| Flywheel power (KW/HP) | 169/230 |
| Max. torque (N•m/rpm) | 1097/1500 |
| Rated fuel consumption(g/KW•h) | ≤235 |
| Type | The track is triangle shape.The sprocket is elevated elastic suspended. |
| Number of track rollers (each side) | 7 |
| Pitch (mm) | 216 |
| Width of shoe (mm) | 560 |
| Gear | 1st | 2nd | 3rd |
| Forward (Km/h) | 0-3.9 | 0-6.5 | 0-10.9 |
| Backward (Km/h) | 0-4.8 | 0-8.2 | 0-13.2 |
| Max. system pressure (MPa) | 18.6 |
| Pump type | High pressure gears pump |
| System output（L/min） | 194 |
Torque converter
Torque converter is power separating hydraulic-mechanic type
Transmission
Planetary, power shift transmission with three speeds forward and three speeds reverse, speed and direction can be quickly shifted.
Steering clutch
The steering clutch is hydraulic pressed, usually separated clutch.
Braking clutch
The braking clutch is pressed by spring, separated hydraulic, meshed type.
Final drive
The final drive is two-stage planetary reduction gear mechanism, splash lubrication.