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Built for demanding rock excavation operations, this 2021 XCMG XE490KS岩石臂 delivers exceptional operator control and job site performance. Advanced hydraulic systems provide precise digging force while maintaining smooth operation across challenging terrain. Operators benefit from enhanced cabin visibility through enlarged windows and strategically positioned mirrors, ensuring comprehensive site awareness during complex maneuvers.
Key operational advantages include:
- Reinforced rock arm configuration for heavy-duty applications
- Superior stability control system reducing machine sway
- Ergonomic operator station with intuitive joystick response
- Enhanced ground clearance for uneven surface navigation
- Robust undercarriage designed for extended operational life
Currently located in Gansu Province, this machine represents proven XCMG engineering reliability. Comprehensive maintenance records available. Ideal for contractors requiring dependable rock excavation capabilities with operator-focused design features that maximize productivity and safety standards.
| Spécifications | Valeur |
|---|---|
| No. | 986214 |
| Tonnage (tons) | 49 |
| Working weight (kg) | 48100 |
| Bucket capacity (m³) | 2.5 (2.3-3.1) |
| Boom length (mm) | 6670 |
| Rod length (mm) | 2900 |
| power | Traditional power |
| manufacturer | Made in China |
| bucket | backhoe |
| Engine type | QSM111 |
| Rated power (kw/rpm) | 280 / 2050 |
| Cooling mode | water-cooling |
| Maximum torque (N.m) | 1898 / 1300 |
| Number of cylinders (PCS) | 6 |
| Displacement (L) | 11 |
| Working form | Direct injection, 4-stroke, turbocharged, air-to-air cooling |
| Ground specific pressure (Kpa) | 85 |
| Rotation speed (rpm) | 9.2 |
| Climbing ability (%) | 35 |
| Bucket digging force (kN) | 305 |
| Rod digging force (kN) | 275 |
| Maximum tractive force (kN) | 338 |
| Travel speed (km/h) | 5.4 / 3.2 |
| Maximum flow of main pump (l/min) | 2 x 360 |
| Traveling Hydraulic Circuit (Mpa) | 34.3 |
| Rotary Hydraulic Circuit (Mpa) | 31 |
| Main pump type | 2 plunger pumps |
| Pilot Oil Circuit (MPa) | 3.9 |
| Fuel Tank (L) | 725 |
| Hydraulic Tank (L) | 430 |
| Engine Oil changes (L) | 38 |
| Total transport length (mm) | 11630 |
| Total transport width (mm) | 3582 |
| Total transport height (mm) | 3705 |
| Counterweight ground clearance (mm) | 1324 |
| Minimum ground clearance (mm) | 519 |
| Back end turning radius (mm) | 3800 |
| Onboard width (mm) | 3095 |
| Total track length (mm) | 5353 |
| Track gauge (mm) | 2750 |
| Track plate width (mm) | 600 |
| Track ground length (mm) | 4292 |
| Maximum digging radius (mm) | 11085 |
| Maximum digging depth (mm) | 6985 |
| Maximum excavation height (mm) | 10050 |
| Maximum unloading height (mm) | 6940 |
| Maximum vertical digging depth (mm) | 4400 |
| Maximum excavation radius of stop surface (mm) | 10860 |
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