Product Description

The XE550DK is a super heavy-duty hydraulic crawler excavator, specifically engineered for high-intensity working environments including large-scale open-pit mining, large quarries, and massive infrastructure construction projects. It integrates powerful power output, intelligent hydraulic control, and robust structural design, balancing exceptional productivity, fuel economy, and long-term reliability. Equipped with a 360kW high-power turbocharged diesel engine and a 3.0–3.5m³ large-capacity heavy-duty rock bucket, it delivers strong digging force and efficient loading performance, capable of coping with long-time continuous heavy-load operations. The optimized intelligent system and reinforced structural components enable it to adapt to complex and harsh working conditions such as plateaus, high temperatures, heavy dust, and uneven terrain. With a humanized cab design and convenient maintenance layout, it ensures operator comfort during long shifts and reduces daily maintenance costs, serving as the core reliable equipment for various large-scale heavy engineering projects.

Product Advantages

• Super Powerful & High Efficiency: Equipped with a 360kW low-speed high-torque turbocharged diesel engine, it provides abundant power reserve and quick throttle response, ensuring stable operation under extreme heavy-load conditions. The intelligent adaptive hydraulic matching system optimizes the coordination between the engine and hydraulic system, increasing working efficiency by 15% and reducing fuel consumption by 6% compared with similar products, achieving energy saving and high productivity.

• Ultra-Durable & Wear-Resistant: The boom, arm, and bucket are made of high-strength alloy steel, undergoing integral quenching and tempering treatment to enhance impact resistance and wear resistance. The extended heavy-duty undercarriage with reinforced track chains, thickened rollers, and high-strength idlers extends the service life to more than 12,000 working hours, fully adapting to high-intensity mining and harsh working environments.

• Intelligent & Precise Control: Equipped with a 12-inch touchscreen intelligent monitor, it integrates real-time data monitoring, fault alarm, parameter adjustment, and working mode switching functions, enabling operators to grasp the machine’s working status at any time. The load-sensing hydraulic system with high-pressure large-flow design realizes smooth compound actions and precise micromovement control, suitable for fine operations such as foundation digging and slope trimming.

• Comfortable & Comprehensive Safety: The fully enclosed pressurized cab meets FOPS/ROPS international safety standards, equipped with a shock-absorbing air suspension seat (150° backrest adjustment), lumbar support, and automatic heating and cooling air conditioning, effectively reducing operator fatigue during long-time operation. 360° panoramic vision, rearview camera, emergency stop device, and anti-slip track design ensure all-around operational safety, avoiding potential risks.

• Strong Adaptability & Easy Maintenance: The three-stage fuel filtration system and large-capacity high-efficiency radiator adapt to poor-quality diesel and high-temperature environments, protecting core components from damage. It is optimized for plateau adaptability, ensuring stable power output at altitudes up to 5,500 meters. Ground-level access to filters, fuel tank, and electrical components simplifies daily inspection and maintenance, saving time and labor.

Product Parameters

Product Applications

• Large-Scale Mining Operations: Suitable for rock excavation, stripping, loading, and transportation in large open-pit mines, including coal mines, non-ferrous metal mines, and iron ore mines, capable of coping with high-intensity and long-time continuous operation needs.

• Large Quarry & Aggregate Work: Used for large-scale stone excavation, crushing, and loading in large quarries, providing efficient support for aggregate production, building material processing, and large-volume stone transportation.

• Heavy Infrastructure Construction: Applied to massive earthmoving, foundation digging, trenching, and slope trimming for highways, bridges, high-rise buildings, urban rail transit, and dam projects, meeting the needs of large-scale infrastructure construction.

• Massive Earthwork Projects: Suitable for large-scale earthwork transfer, land reclamation, site leveling, and port construction in industrial parks, ports, and airport construction sites, significantly improving construction efficiency.

• Special Environment Projects: Optimized for plateau, high-temperature, and cold areas, applicable to plateau road construction, cold-region mining, and desert area development, with strong environmental adaptability and stable performance.

Operation Guidelines

1 Pre-Operation Inspection

1. Check the levels of engine oil, coolant, hydraulic oil, and fuel, and supplement them in time if insufficient to avoid equipment damage caused by lack of fluids.

2. Inspect the track chains, rollers, idlers, and sprockets for wear, looseness, or damage; adjust the track tension according to the working condition if necessary to ensure stable travel.

3. Verify the bucket teeth, cutting edges, and bucket pins for looseness, wear, or deformation; replace damaged parts in time to ensure digging efficiency and operational safety.

4. Check the cab safety devices (seat belt, emergency stop button), lights, horn, and rearview camera to ensure they work normally; clean the cab windows and mirrors for clear vision.

5. Inspect the hydraulic hoses and joints for oil leakage; tighten or replace them if there is leakage to prevent hydraulic system failure and potential safety hazards.

2 Starting & Operation

1. Enter the cab, fasten the seat belt, adjust the seat height and backrest angle, and adjust the rearview mirrors to ensure a clear view of the surrounding environment.

2. Insert the key, turn to the "ON" position, wait for the system self-check (about 20 seconds), and confirm that there is no fault alarm on the monitor.

3. Press the one-click start button to start the engine, idle for 3–5 minutes to warm up the engine and hydraulic system, avoiding direct heavy-load operation to protect core components.

4. Select the appropriate work mode (standard, heavy, or economy) via the control panel according to the working task; operate the left joystick to control the swing of the upper body and the lifting/lowering of the boom, and the right joystick to control the expansion of the arm and the opening/closing of the bucket.

5. Use the foot pedals to control the travel direction and speed; press the brake pedal to stop when necessary. Avoid sudden acceleration, deceleration, or turning during travel to ensure the machine’s stability.

6. After operation, lower the bucket to the ground, turn off the engine, pull out the key, close the cab door, and clean the machine surface to remove dust and debris.

3 Safety Notes

• Do not overload the bucket beyond its rated capacity (3.0–3.5m³) to avoid structural damage, hydraulic system failure, or rollover accidents.

• Do not operate on slopes steeper than 35°; avoid turning on slopes, and park the machine on level ground when stopping to prevent slipping and rollover.

• Keep a safe distance (at least 6 meters) from personnel, vehicles, and obstacles during operation; prohibit personnel from standing under the boom or bucket to avoid safety accidents.

• Stop the engine and cut off the power supply before performing maintenance, inspection, or part replacement; hang a warning sign to prevent misoperation by others.

• Do not operate the excavator in severe weather such as heavy rain, strong wind, heavy fog, or thunderstorm to ensure operational safety and avoid equipment damage.

FAQ

Q1: What is the fuel consumption of the XE550DK under standard working conditions?

A1: Under standard mining or heavy earthwork conditions, the fuel consumption is approximately 28–35 L/h, which may vary slightly according to the operating load, working environment, and operation 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 adaptability, with a supercharger and altitude compensation system, which can ensure stable power output at altitudes up to 5,500 meters. It can also operate reliably in the temperature range of -25°C to 55°C, adapting to various harsh environments.

Q3: What is the standard warranty period of the XE550DK?

A3: The standard warranty period is 1 year or 2,000 working hours (whichever comes first). We also provide customized extended warranty services (1–3 years) according to customers’ needs to ensure worry-free use and reduce 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-purpose bucket, hydraulic breaker, grapple, ripper, and quick coupler, which can be replaced according to different working scenarios to improve the machine’s versatility.

Q5: How often should routine maintenance be performed?

A5: Routine maintenance (oil change, filter replacement) should be performed 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 hydraulic system fails during operation?

A6: First, stop the engine immediately and cut off the power supply to avoid further damage. Check the hydraulic oil level and hoses for leakage; if the oil level is insufficient, supplement it in time. If there is leakage or abnormal noise, do not restart the machine; contact professional maintenance personnel for troubleshooting and repair.