PRODUCT FEATURES
SD7N bulldozer is track-type bulldozer with elevated sprocket, power shift drive, semi-rigid suspended and hydraulic controls. lt is with modular design, easy to repair & maintenance. Pilot hydraulic control with high working efficiency. According to the man-machine engineering design, the control system is smart and accurate. lt is equipped with multi-function display and ROPS cabin . lt can be equipped with U-blade, single shank ripper, three shanks ripper etc. lt is an ideal machine used in communication construction, oilfield, power, mining etc. large earth moving projects.
Specifications
|
Model |
SD7N(230HP) |
SD7NLGP(230HP) |
|
Dozer |
Tilt |
Tilt |
|
Operation weight（kg） |
24800. |
26800 |
|
Ground pressure(kpa) |
74.1 |
46.2 |
|
Track gauge(mm) |
1980 |
2235 |
|
Min.ground clearance(mm) |
404 |
484 |
|
Gradient |
30°/25° |
30°/25° |
|
Dozing capacity(m ) |
8.1. |
5.8 |
|
Blade width(mm) |
3552. |
4382 |
|
Max.digging depth(mm) |
498. |
635 |
|
Overall dimensions(mm) |
5677×3552×3402 |
5473×4382×3482 |
|
Engine Type |
Cummins.NT855-C280S10 Weichai.WD12G250E302 |
|
|
Rated revolution(rpm) |
2100 |
|
|
Rated power(kw) |
185 |
|
|
Max.torque(N.m/rpm) |
1200/1300-1400 |
|
|
Rated fuel consumption(g/kw.h) |
≤235 |
|
|
Undercarriage system
|
The track is triangle shape.The sprocket is elevated |
|
|
Number of track rollers(each side) |
7 |
7 |
|
Number of carrier rollers(each side) |
1 |
|
|
Pitch（mm） |
216 |
|
|
Width of shoe(mm) |
560 |
910 |
|
Gear |
|
|
|
Forward km/h |
1st：0-3.9 2nd：0-6.5 3rd：0-10.9 |
1st：0-3.9 2nd：0-6.5 3rd：0-10.9 |
|
Backward km/h. |
1st：0-4.8 2nd：0-8.2 3rd：0-13.2 |
1st：0-4.8 2nd：0-8.2 3rd：0-13.2 |
|
Torque converter |
Torque conver 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 |
|
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