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XE490DK
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The XE490DK is a premium heavy-duty hydraulic crawler excavator, professionally developed for harsh operating scenarios including large-scale open-pit mining, quarry exploitation, and heavy infrastructure construction. It integrates robust power output, smart control systems and rugged structural design, achieving an optimal balance of high working efficiency, fuel economy and long-term operational stability. Fitted with a 280kW turbocharged diesel engine and a 2.3–3.1m³ heavy-duty rock bucket, it delivers powerful digging performance and reliable continuous heavy-load working capacity. The upgraded intelligent hydraulic system and reinforced structural components enable it to cope with complex working conditions such as plateau regions, high-temperature environments and dusty mine sites. Featuring a user-friendly cab layout and easily accessible maintenance structure, the machine ensures operator comfort during long working shifts and cuts daily maintenance costs, making it a core reliable device for diverse heavy engineering projects.
Equipped with a 280kW low-speed high-torque turbocharged diesel engine, the machine delivers sufficient power to support all heavy-load operations. The intelligent adaptive hydraulic matching system optimizes the collaborative operation of the engine and hydraulic system, boosting working efficiency by 13% and lowering fuel consumption by 5% compared with peer products, realizing dual advantages of energy conservation and high productivity.
The boom, arm and bucket are fabricated from high-strength alloy steel and processed with overall quenching and tempering treatment, greatly enhancing impact resistance and wear durability. The heavy-duty extended undercarriage with reinforced track chains, track rollers and carrier rollers extends the machine’s service life to over 12,000 working hours, perfectly adapting to long-term high-intensity mining operations.
Configured with a 10-inch touchscreen smart monitor, the device integrates real-time operational data monitoring, fault alarm and parameter adjustment functions, allowing operators to master the machine’s working status at all times. The load-sensing hydraulic system enables smooth compound movements and accurate micro-control, catering to fine construction operations such as foundation excavation and slope finishing.
The fully enclosed pressurized cab complies with FOPS/ROPS safety standards, fitted with a shock-absorbing suspension seat (150° backrest adjustment), lumbar support system and automatic constant-temperature air conditioning, which effectively alleviates operator fatigue during long-hour work. The 360° panoramic view, rear monitoring camera and emergency stop device provide comprehensive operational protection to eliminate potential safety hazards.
All filters, fuel tank and electrical components are accessible from ground level, simplifying daily inspection and maintenance work to save time and labor costs. The three-stage fuel filtration system and large-capacity heat dissipation radiator adapt to low-quality diesel and high-temperature working environments, protecting core components from damage. Meanwhile, it features optimized plateau adaptability, ensuring stable operation at altitudes up to 5,500 meters.
Parameter | Specification |
|---|---|
Model | XE490DK |
Operating Weight | 48,100 kg |
Engine Power (Rated) | 280 kW / 2000 rpm |
Standard Bucket Capacity | 2.3–3.1 m³ (Rock Bucket) |
Max. Digging Depth | 7,800 mm |
Max. Digging Radius | 11,500 mm |
Max. Lifting Height | 8,600 mm |
Bucket Digging Force | 305 kN |
Hydraulic System Pressure | 35.5 MPa |
Track Shoe Width | 600 mm |
Fuel Tank Capacity | 750 L |
Engine Type | Turbocharged, Direct-Injection Diesel Engine |
Travel Speed (Low/High) | 3.1 km/h / 5.6 km/h |
Gradeability | 70% (35°) |
Ground Pressure | 85 kPa |
Mining Operations: Ideal for rock excavation, overburden stripping, material loading and transportation in large open-pit mines, including coal mines, non-ferrous metal mines and iron ore mines, fully meeting the demands of high-intensity and long-duration continuous operation.
Quarry & Aggregate Work: Applied to stone excavation, crushing and loading operations in large quarries, delivering efficient support for aggregate production, building material processing and stone material transportation.
Infrastructure Construction: Suitable for earthmoving, foundation excavation, trenching and slope finishing works for highways, bridges, high-rise buildings, urban rail transit and water conservancy dam projects, satisfying the construction requirements of large-scale infrastructure projects.
Heavy-Duty Earthwork: Applicable to large-scale earthwork transfer, land reclamation, site leveling and port engineering construction in industrial parks, harbors and airport construction sites, effectively improving overall construction efficiency.
Special Environment Projects: Optimized for plateau, high-temperature and cold-region working conditions, applicable to plateau road construction, cold-area mining and desert development projects with outstanding environmental adaptability.
Check the liquid levels of engine oil, coolant, hydraulic oil and fuel, and replenish fluids timely if insufficient to avoid equipment damage caused by liquid shortage.
Examine track chains, rollers, idlers and sprockets for wear, looseness or damage; adjust track tension appropriately according to actual working conditions when needed.
Inspect bucket teeth, cutting edges and bucket pins for looseness, wear or deformation; replace damaged accessories in a timely manner to guarantee digging efficiency and operational safety.
Verify the normal operation of cab safety devices (seat belt, emergency stop button), working lights, horn and rearview camera; clean cab windows and mirrors to ensure unobstructed vision.
Check hydraulic hoses and connecting joints for oil leakage; fasten loose joints or replace damaged parts in case of leakage to prevent hydraulic system malfunctions.
Enter the cab, fasten the safety belt, adjust the seat height and backrest angle, and calibrate rearview mirrors to ensure a clear view of the surrounding working environment.
Insert the key and turn it to the "ON" position, wait for the 20-second system self-check, and confirm no fault alarms are displayed on the monitor.
Press the one-touch start button to ignite the engine, then let it idle for 3–5 minutes to warm up the engine and hydraulic system, avoiding immediate heavy-load operation.
Select the optimal working mode (standard, heavy or economy) via the control panel based on construction tasks; operate the left joystick to control upper structure swing and boom lifting/lowering, and the right joystick to control arm extension/retraction and bucket opening/closing.
Control travel direction and speed through foot pedals, and step on the brake pedal for parking when necessary. Avoid sudden acceleration, deceleration and sharp turning during travel to ensure machine stability.
Upon completion of operation, lower the bucket to the ground, shut down the engine, remove the key, close the cab door and clean the machine surface.
Do not overload the bucket beyond its rated capacity of 2.3–3.1m³ to prevent structural deformation or rollover accidents.
Do not operate the machine on slopes steeper than 35°; avoid turning on inclined surfaces, and park the equipment on flat ground during shutdown to prevent sliding risks.
Maintain a safe distance of no less than 6 meters from on-site personnel, vehicles and obstacles during operation; strictly prohibit personnel from standing under the boom or bucket to avoid safety incidents.
Shut down the engine and cut off the power supply before conducting maintenance, inspection or part replacement, and hang a warning sign to prevent accidental operation.
Suspend operation in severe weather such as heavy rain, strong wind, dense fog and thunderstorms to ensure operational safety.
Q1: What is the fuel consumption of the XE490DK under standard working conditions?
A1: Under standard mining and earthworking scenarios, the machine’s fuel consumption is about 23–29 L/h, with minor fluctuations subject to operational load, working environment and operator habits. The economy mode can further reduce fuel consumption by 3–5%.
Q2: Can the XE490DK work normally at high altitudes and extreme temperatures?
A2: Yes. The engine is specially optimized for plateau and extreme temperature adaptation, equipped with a supercharger and altitude compensation system, maintaining stable power output at altitudes up to 5,500 meters. It can also operate reliably within a temperature range of -25°C to 55°C.
Q3: What is the standard warranty period of the XE490DK?
A3: The standard warranty covers 1 year or 2,000 working hours (whichever comes first). Customized extended warranty services of 1–3 years are also available per customer requirements to ensure worry-free equipment operation.
Q4: What types of attachments are compatible with the XE490DK?
A4: The standard configuration is a 2.3–3.1m³ heavy-duty rock bucket. Optional accessories include a 3.3m³ general-purpose bucket, hydraulic breaker, material grapple, single ripper and quick coupler, which can be replaced according to different working scenarios to enhance machine versatility.
Q5: How often should routine maintenance be performed?
A5: Routine maintenance (oil and filter replacement) is required every 250 working hours; minor maintenance (hydraulic system inspection, track adjustment, lubrication) every 500 working hours; major maintenance (engine overhaul, hydraulic pump inspection, undercarriage replacement) every 2,000 working hours.
Q6: What should I do if the engine fails to start?
A6: Firstly, check if the fuel is sufficient and the battery has normal power. Refuel timely if fuel is insufficient, or charge/replace the battery if power is low. If the fault persists, inspect the engine ignition and fuel supply systems, or contact professional maintenance technicians for troubleshooting.
