Unit : mm
| Arm length | ME 2.60 m*1 |
Short 3.00 m |
Standard 3.45 m |
|
|---|---|---|---|---|
| A | Overall length | 12,120 | 12,210 | 12,160 |
| B | Overall height (to top of boom) | 4,330 | 3,860 | 3,670 |
| C | Overall width (with step & walkway) | 3,830 | ||
| D | Overall height (to top of cab) | 3,380 | ||
| D' | Overall height (top of handrail) | 3,640 | ||
| D" | Overall height (top of exhaust pipe) | 3,740 | ||
| E | Ground clearance of rear end* | 1,260 | ||
| F | Ground clearance* | 510 | ||
| G | Tail swing radius | 3,880 | ||
| G' | Distance from center of swing to rear end | 3,790 | ||
| H | Tumbler distance | 4,400 | ||
| I | Overall length of crawler | 5,460 | ||
| J | Track gauge | 2,750 | ||
| K | Shoe width | 600 | ||
| L | Overall width of upperstructure | 3,660 | ||
| M | Overall width of undercarriage (without steps) |
3,350 | ||
| M' | Overall width of undercarriage (with steps) |
3,580 | ||
*1 Not applicable for SK520LC
* without including height of shoe lug
| Model Name | SK520LC | SK550XDLC |
|---|---|---|
| Machine Type | SK520LC-11E | SK550XDLC-11E |
| Model | ISUZU 6WG1 | |
|---|---|---|
| Type | Four-cycle, water-cooled, direct injection diesel engine, turbo charged, EU Stage V exhaust emission regulation | |
| Rated power output | kW/min-1 | 348 / 1,800 (ISO 14396: without fan) |
| Hydraulic capacity | L | 803 hydraulic system / 370 tank oil level | |
|---|---|---|---|
| Pump | Type | Two variable displacement axial piston pumps + pilot gear pump | |
| Max.Discharge flow | L/min | 2 x 370, 1 x 27 | |
| Swing speed | min-1 | 7.5 |
|---|
| Travel Speed | km/h | 5.4 / 3.2 |
|---|---|---|
| Drawbar pulling force (Standard) |
kN | 411 (SAE J 1309) |
| Drawbar pulling force (Mass excavation) |
kN | 409 (SAE J 1309) |
| Gradeability | % ( º ) | 70 {35} |
| Track shoes | 50 each side | |
| Shoe width | mm | 600 / 800 |
| Travel motors | 2 × axial-piston, two-step motors | |
| Fuel Tank | L | 720 |
|---|
| Backhoe bucket (SK520LC) | Backhoe bucket (SK550XDLC) | ||||
|---|---|---|---|---|---|
| General digging | General digging | Mass excavating | |||
| Bucket capacity | ISO heaped | m3 | 2.1 | 2.1 | 3.4 |
| Bucket Opening Width | With side cutters | mm | 1,680 | 1,680 | 1,980 |
| Without side cutters | mm | 1,680 | 1,680 | 1,980 | |
| Operating Weight | kg | 53,100 - 56,600 |
|---|
Unit : mm
| Boom length | 6.50 m ME*1 | 7.00 m | |||
|---|---|---|---|---|---|
| Range / Arm | ME 2.60 m*1 |
Short 3.00 m |
Standard 3.45 m |
||
| a | Max. digging reach | 11,320 | 11,730 | 12,070 | |
| b | Max. digging reach at ground level | 11,090 | 11,500 | 11,850 | |
| c | Max. digging depth | 6,910 | 7,320 | 7,770 | |
| d | Max. digging height | 10,960 | 11,050 | 10,980 | |
| e | Max. dumping clearance | 7,100 | 7,630 | 7,620 | |
| f | Min. dumping clearance | 2,970 | 3,240 | 2,790 | |
| g | Max. vertical wall digging depth | 6,030 | 6,630 | 7,070 | |
| h | Min. swing radius | 5,100 | 5,330 | 5,210 | |
| i | Horizontal digging stroke at ground level | 3,860 | 5,110 | 6,050 | |
| j | Digging depth for 2.4m(8')flat bottom | 6,750 | 7,160 | 7,620 | |
| Bucket capacity ISO heaped m3 | 3.4 | 2.1 | 2.1 | ||
*1 Not applicable for SK520LC
| Digging Force (ISO 6015) | Unit: kN |
| Arm length | ME 2.60m*1 | Short3.0 m | Standard3.45 m |
|---|---|---|---|
| Bucket digging force | 282 309* |
267 292* |
268 293* |
| Arm crowding force | 239 261* |
223 244* |
203 222* |
*1 Not applicable for SK520LC
* Power Boost engaged.
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