Product Description
The XE550DK is an ultra heavy-duty hydraulic crawler excavator designed for high-intensity operation scenarios, including large open-pit mines, giant quarries and super-scale infrastructure projects. It integrates high-power output, intelligent hydraulic control and rugged structural design, balancing outstanding production efficiency, fuel efficiency and long-term operational reliability. Equipped with a 360kW high-power turbocharged diesel engine and a 3.0–3.5m³ large-capacity heavy-duty rock bucket, it delivers powerful digging force and efficient loading capacity, supporting long-duration continuous heavy-duty work. Optimized intelligent control systems and reinforced structural parts enable stable operation in harsh complex conditions such as plateaus, high temperatures, heavy dust and rugged terrain. Its ergonomic cab and easy-maintenance layout ensure operator comfort during long working shifts and lower daily upkeep costs, making it a core reliable device for large-scale heavy engineering projects.
Product Advantages
Super Powerful & High Efficiency: Fitted with a 360kW low-speed high-torque turbocharged diesel engine, the machine offers sufficient power reserve and rapid throttle response to maintain stable performance under extreme heavy-load conditions. The intelligent adaptive hydraulic matching system optimizes coordination between the engine and hydraulic unit, boosting working efficiency by 15% and cutting fuel consumption by 6% compared with peer models, realizing energy conservation and high productivity.
Ultra-Durable & Wear-Resistant: The boom, arm and bucket are forged from high-strength alloy steel with overall quenching and tempering treatment, greatly improving impact resistance and wear durability. The extended heavy-duty undercarriage adopts reinforced track chains, thickened rollers and high-strength idlers, extending the service life to over 12,000 working hours, fully suitable for high-intensity mining and harsh construction environments.
Intelligent & Precise Control: Featured with a 12-inch touchscreen intelligent monitor, it supports real-time data viewing, fault alarming, parameter adjustment and working mode switching, allowing operators to master machine conditions anytime. The load-sensing hydraulic system with high-pressure and large-flow design enables smooth compound movements and accurate micro-control, adapting to fine operations including foundation excavation and slope trimming.
Comfortable & Comprehensive Safety: The fully enclosed pressurized cab complies with FOPS/ROPS international safety standards. It is equipped with a shock-absorbing air suspension seat with 150° backrest adjustment, lumbar support and automatic heating and cooling air conditioning, effectively relieving operator fatigue during long-hour work. 360° panoramic view, rear monitoring camera, emergency stop switch and anti-slip track structure provide full-round safety protection against potential hazards.
Strong Adaptability & Easy Maintenance: The three-stage fuel filtration system and large-capacity high-efficiency radiator adapt to inferior diesel and high-temperature environments, protecting core components from damage. Optimized for plateau adaptation, it maintains stable power output at altitudes up to 5,500 meters. Filters, fuel tanks and electrical components are installed at ground level to simplify daily inspection and maintenance, saving time and labor costs.
Product Parameters
Parameter | Specification |
Model | XE550DK |
Operating Weight | 54,000 kg |
Engine Power (Rated) | 360 kW / 2000 rpm |
Standard Bucket Capacity | 3.0–3.5 m³ (Heavy-Duty Rock Bucket) |
Max. Digging Depth | 8,000 mm |
Max. Digging Radius | 12,000 mm |
Max. Lifting Height | 8,800 mm |
Bucket Digging Force | 320 kN |
Hydraulic System Pressure | 36 MPa |
Track Shoe Width | 650 mm |
Fuel Tank Capacity | 800 L |
Engine Type | Turbocharged, Direct-Injection Diesel Engine |
Travel Speed (Low/High) | 3.0 km/h / 5.8 km/h |
Gradeability | 70% (35°) |
Ground Pressure | 88 kPa |
Product Applications
Large-Scale Mining Operations: Suitable for rock excavation, overburden stripping, material loading and transportation in large open-pit coal mines, non-ferrous mines and iron ore mines, fully meeting the demands of high-intensity and long-duration continuous operation.
Large Quarry & Aggregate Work: Applied to large-scale stone excavation, crushing and loading in major quarries, providing efficient support for aggregate production, building material processing and high-volume stone transportation projects.
Heavy Infrastructure Construction: Ideal for massive earthmoving, foundation digging, trenching and slope trimming in highway, bridge, high-rise building, urban rail transit and dam construction, satisfying the construction demands of large-scale infrastructure projects.
Massive Earthwork Projects: Adaptable to large-scale earthwork transfer, land reclamation, site leveling and port development in industrial parks, harbors and airport construction sites, greatly boosting overall construction efficiency.
Special Environment Projects: Optimized for plateau, high-temperature and low-temperature regions. It works stably in plateau road construction, cold-area mining and desert development, featuring strong environmental adaptability and consistent operating performance.
Operation Guidelines
1 Pre-Operation Inspection
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 properly according to working conditions to ensure stable traveling performance.
Inspect bucket teeth, cutting edges and bucket pins for looseness, wear or deformation. Replace damaged parts promptly to guarantee digging efficiency and operational safety.
Check cab safety devices including seat belt and emergency stop button, as well as lights, horn and rearview camera for normal operation. Clean cab windows and mirrors to ensure clear visual field.
Inspect hydraulic hoses and joints for oil leakage. Tighten connectors or replace faulty parts in case of leakage to prevent hydraulic system failures and potential safety hazards.
2 Starting & Operation
Enter the cab and fasten the seat belt, adjust seat height and backrest angle, and calibrate rearview mirrors to ensure a clear view of surrounding conditions.
Insert the key and turn to the "ON" position, wait about 20 seconds for system self-check, and confirm no fault alarms on the intelligent monitor.
Press the one-click start button to ignite the engine, then idle for 3–5 minutes to warm up the engine and hydraulic system, avoiding immediate heavy-load operation to protect core components.
Select the proper working mode including standard, heavy or economy mode via the control panel based on construction tasks. Operate the left joystick to control upper body rotation and boom lifting/lowering, and the right joystick to adjust arm extension and bucket opening/closing.
Control traveling direction and speed through foot pedals, and step on the brake pedal for stopping as required. Avoid sudden acceleration, deceleration and sharp turning during travel to ensure machine stability.
After finishing work, lower the bucket to the ground, shut down the engine, pull out the key and close the cab door. Clean the machine surface to remove dust and construction debris.
3 Safety Notes
Do not overload the bucket beyond the rated capacity of 3.0–3.5m³ to prevent structural damage, hydraulic failure or rollover accidents.
Avoid operating on slopes steeper than 35°, refrain from turning on inclined surfaces, and park the machine on flat ground during shutdown to prevent sliding and tipping risks.
Maintain a safe distance of no less than 6 meters from staff, vehicles and obstacles during operation. Never allow personnel to stand under the boom or bucket to eliminate safety risks.
Shut down the engine and cut off the power supply before maintenance, inspection or part replacement, and hang warning signs to prevent misoperation by other workers.
Stop operation in severe weather such as heavy rain, strong wind, dense fog and thunderstorms to ensure personnel safety and avoid equipment damage.
FAQ
Q1: What is the fuel consumption of the XE550DK under standard working conditions?
A1: Under standard mining and heavy earthwork conditions, the fuel consumption is about 28–35 L/h, which varies slightly with operating load, working environment and operator habits. The economy mode can further reduce fuel consumption by 4–6%.
Q2: Can the XE550DK 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 to deliver stable power output at altitudes up to 5,500 meters. It can operate reliably within the temperature range of -25°C to 55°C, adapting to diverse harsh environments.
Q3: What is the standard warranty period of the XE550DK?
A3: The standard warranty covers 1 year or 2,000 working hours (whichever comes first). Custom extended warranty services of 1–3 years are available upon customer requests to ensure worry-free operation and lower maintenance costs.
Q4: What types of attachments are compatible with the XE550DK?
A4: The standard configuration is a 3.0–3.5m³ heavy-duty rock bucket. Optional attachments include 3.8m³ general bucket, hydraulic breaker, material grapple, 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 including oil and filter replacement is required every 250 working hours. Minor maintenance such as hydraulic inspection, track adjustment and lubrication is needed every 500 working hours, while major overhaul including engine check, hydraulic pump inspection and undercarriage replacement is conducted every 2,000 working hours.
Q6: What should I do if the hydraulic system fails during operation?
A6: First, stop the engine and cut off power immediately to avoid further damage. Check hydraulic oil level and hose conditions, and replenish oil if insufficient. In case of leakage or abnormal noise, do not restart the machine and contact professional maintenance personnel for troubleshooting and repair.
