HBXG (SHEHWA) SD7 crawler bulldozer
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| Engine | ||||||||||||||||
| Model | Cummins NTA855-C280 | |||||||||||||||
| Type | Water cooled, single line, vertical, four strokes, turbocharged, 6-cylinders, diameter 140mm | |||||||||||||||
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Flywheel power, kW |
177 | |||||||||||||||
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Rated speed, r/min |
2100 | |||||||||||||||
| Number of cylinders - bore x stroke, mm | 6-ø140 x 140 | |||||||||||||||
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Starting method |
24V electric starting | |||||||||||||||
| Battery | 24V | |||||||||||||||
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Transmission system |
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| Torque converter | Power separating hydraulic-mechanic type | |||||||||||||||
| Transmission |
It integrates center drive, transmission and speed changing control valve into one component. It can be assembled or disassembled as a assembly or as a part. It is very convenient to service. Transmission is multi-stage planetary gear drive to realize modular assembling and disassembling. The shift can be changed among 1st gear, 2nd gear, 3rd gear forward or reverse rapidly, through multi-functional control valve. |
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Steering clutch |
Wet, multiple-disc, hydraulically pressed, non-constantly engaged | |||||||||||||||
| Steering brake | Pressed by spring, separated hydraulically, constant meshed type | |||||||||||||||
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Final drive |
Final drive is two-stage planetary reduction gear mechanism, splash lubricated. It is mounted at outside of steering and braking clutch. Combined sprocket segment is very convenient for assembling, disassembling and service. | |||||||||||||||
| Travel speed, km/h | ||||||||||||||||
| Forward: | ||||||||||||||||
| • 1st | 3.9 | |||||||||||||||
| • 2nd | 6.5 | |||||||||||||||
| • 3rd | 10.9 | |||||||||||||||
| Reverse: | ||||||||||||||||
| • 1st | 4.8 | |||||||||||||||
| • 2nd | 8.2 | |||||||||||||||
| • 3rd | 13.2 | |||||||||||||||
| Under carriage | ||||||||||||||||
| Sprocket | Segmented | |||||||||||||||
| Track tension | Hydraulic-adjusted | |||||||||||||||
| Number of track shoes, each side | 7 | |||||||||||||||
| Number of carrier rollers, each side | 1 | |||||||||||||||
| * Floating seals are used in all track rollers, carrier rollers, sprocket and front idlers | ||||||||||||||||
| Track | ||||||||||||||||
| Track pitch, mm | 216 | |||||||||||||||
| Track width, mm | 560 | |||||||||||||||
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Lenghth of track on ground, mm |
2895 | |||||||||||||||
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Ground clearance, mm |
404 | |||||||||||||||
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Track gauge, mm |
1980 | |||||||||||||||
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Ground pressure, MPa |
0.071 | |||||||||||||||
| Gradeability, ° | latitude 30° / transverse 25° | |||||||||||||||
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Hydraulic system of work equipment |
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Working pressure, MPa |
18.6 | |||||||||||||||
| Rated flow, L/min | 194 | |||||||||||||||
| Pump | High pressure gear pump | |||||||||||||||
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Valve position |
Raise, hold, lower, float | |||||||||||||||
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Work equipment |
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Blade type |
Straight tilt blade |
Angle blade | U-Type blade | |||||||||||||
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Overall dimensions, Length x Width x Height, mm |
7604 x 3823 x 3402 | 7571 х 4253 х 3402 | 7880 х 4428 х 3402 | |||||||||||||
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Weight (w/o ripper), kg |
23800 | |||||||||||||||
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Blade dimensions, Width x Height, mm |
3823 х 1280 | 4253 х 1100 | 4428 х 1765 | |||||||||||||
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Max. lift above ground, mm |
1170 | 1115 | 1121 | |||||||||||||
| Max. drop below ground, mm | 498 | 670 | 670 | |||||||||||||
| Dozing capacity, m³ | 6.3 | 5.2 | 8.1 | |||||||||||||
| Ripper | ||||||||||||||||
| Type | 1-shank | |||||||||||||||
| Ripper's weight, kg | 3900 | |||||||||||||||
| Max. dig below ground, mm | 1150 | |||||||||||||||
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Max. lift above ground, mm |
830 | |||||||||||||||
| Rippering angle, ° | 45 | |||||||||||||||
| Volumes of liquids | ||||||||||||||||
| Fuel tank, L | 450 | |||||||||||||||
| Water tank and diesel engine cooling water, L | 118 | |||||||||||||||
| Camshaft case of diesel engine, L | 20 | |||||||||||||||
| Bevel gear case hydraulic system of tractor, L | 150 | |||||||||||||||
| Final drive, one side, L | 23 | |||||||||||||||
| Pivot lubricating, L | 15 | |||||||||||||||
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Implement system oil tank, L |
100 | |||||||||||||||
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