Product Description
The XE420GK is a high-performance heavy-duty hydraulic crawler excavator, specifically designed for harsh working environments such as large-scale mining, quarrying, and infrastructure construction. It integrates powerful power output, intelligent control, and durable structure, balancing efficiency, fuel economy, and reliability. Equipped with a 272kW turbocharged diesel engine and a 2.2m³ heavy-duty rock bucket, it delivers excellent digging force and continuous heavy-load operation capability. The optimized hydraulic system and reinforced structural design enable it to adapt to complex working conditions such as plateau, high temperature, and heavy dust. With a humanized cab and easy maintenance design, it not only ensures the operator’s comfort but also reduces daily maintenance costs, making it a reliable core equipment for various heavy engineering projects.
Product Advantages
Powerful & Efficient: Equipped with a 272kW low-speed high-torque turbocharged diesel engine, it provides strong power support for heavy-load operations. The intelligent adaptive hydraulic control system optimizes the matching between the engine and hydraulic system, increasing working efficiency by 12% and reducing fuel consumption by 4% compared with similar products.
Durable & Wear-Resistant: The boom, arm, and bucket adopt high-strength alloy steel and undergo quenching treatment, effectively improving impact resistance and wear resistance. The heavy-duty undercarriage with enhanced track chains and reinforced rollers extends the service life to more than 10,000 working hours, adapting to long-term mining operations.
Intelligent & Precise: Equipped with a 10-inch touchscreen intelligent monitor, it integrates real-time data monitoring, fault alarm, and parameter adjustment functions. The positive-flow hydraulic system realizes smooth compound actions and precise micromovement control, suitable for fine operation scenarios such as foundation digging.
Comfortable & Safe: The fully enclosed pressurized cab is equipped with a shock-absorbing suspension seat (150° backrest adjustment), lumbar support, and automatic air conditioning, reducing operator fatigue during long shifts. 360° panoramic vision, rearview camera, and emergency stop device ensure all-around operational safety.
Easy Maintenance: Ground-level access to filters, fuel tank, and electrical components simplifies daily inspection and maintenance. The three-stage fuel filtration system and large-capacity radiator adapt to poor-quality diesel and high-temperature environments, protecting core components from damage.
Product Parameters
Parameter | Specification |
Model | XE420GK |
Operating Weight | 40,700 kg |
Engine Power (Rated) | 272 kW |
Standard Bucket Capacity | 2.2 m³ (Rock Bucket) |
Max. Digging Depth | 7,500 mm |
Max. Digging Radius | 11,200 mm |
Max. Lifting Height | 8,300 mm |
Hydraulic System Pressure | 35 MPa |
Track Shoe Width | 600 mm |
Fuel Tank Capacity | 700 L |
Engine Type | Turbocharged, Direct-Injection Diesel Engine |
Working Speed | 3.2 km/h (Low), 5.5 km/h (High) |
Product Applications
Mining Operations: Suitable for rock excavation, stripping, loading, and transportation in open-pit mines, especially for medium and large-scale non-ferrous metal mines and coal mines.
Quarry & Aggregate Work: Used for stone excavation, crushing, and loading in quarries, providing efficient support for aggregate production and building material processing.
Infrastructure Construction: Applied to earthmoving, foundation digging, trenching, and slope trimming for highways, bridges, high-rise buildings, and urban rail transit projects.
Heavy-Duty Earthwork: Suitable for large-scale earthwork transfer, land reclamation, and site leveling in industrial parks, ports, and airport construction.
Special Environment Projects: Optimized for plateau, high-temperature, and cold areas, applicable to plateau road construction, cold-region mining, and desert area development.
Operation Guidelines
1 Pre-Operation Inspection
Check the levels of engine oil, coolant, hydraulic oil, and fuel, and supplement them in time if insufficient.
Inspect the track chains, rollers, idlers, and sprockets for wear, looseness, or damage; adjust the track tension if necessary.
Verify the bucket teeth, cutting edges, and bucket pins for looseness, wear, or deformation; replace damaged parts in time.
Check the cab safety devices (seat belt, emergency stop button), lights, horn, and rearview camera to ensure they work normally.
Inspect the hydraulic hoses and joints for oil leakage; tighten or replace them if there is leakage.
2 Starting & Operation
Enter the cab, fasten the seat belt, adjust the seat height and backrest angle, and adjust the rearview mirrors to ensure a clear view.
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.
Press the one-click start button to start the engine, idle for 3–5 minutes to warm up the engine and hydraulic system.
Operate the left joystick to control the swing of the upper body and the lifting/lowering of the boom; operate the right joystick to control the expansion of the arm and the opening/closing of the bucket.
Use the foot pedals to control the travel direction and speed; press the brake pedal to stop when necessary. Avoid sudden acceleration or deceleration during travel.
After operation, lower the bucket to the ground, turn off the engine, pull out the key, and close the cab door.
3 Safety Notes
Do not overload the bucket beyond its rated capacity (2.2m³) to avoid structural damage or rollover.
Do not operate on slopes steeper than 30°; avoid turning on slopes to prevent slipping.
Keep a safe distance (at least 5 meters) from personnel, vehicles, and obstacles during operation; prohibit personnel from standing under the boom or bucket.
Stop the engine and cut off the power supply before performing maintenance, inspection, or part replacement.
Do not operate the excavator in severe weather such as heavy rain, strong wind, or heavy fog to ensure operational safety.
FAQ
Q1: What is the fuel consumption of the XE420GK under standard working conditions?
A1: Under standard mining or earthwork conditions, the fuel consumption is approximately 20–24 L/h, which may vary slightly according to the operating load, working environment, and operation habits.
Q2: Can the XE420GK work normally at high altitudes?
A2: Yes. The engine is specially optimized for plateau adaptability, with a supercharger and altitude compensation system, which can ensure stable power output at altitudes up to 5,500 meters.
Q3: What is the standard warranty period of the XE420GK?
A3: The standard warranty period is 1 year or 2,000 working hours (whichever comes first). We also provide extended warranty services (1–2 years) for customers’ needs.
Q4: What types of buckets are available for the XE420GK?
A4: The standard configuration is a 2.2m³ heavy-duty rock bucket. Optional buckets include 2.4m³ general-purpose bucket, 2.0m³ narrow bucket, and hydraulic breaker for different working scenarios.
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) every 500 working hours; major maintenance (engine overhaul, hydraulic pump inspection) every 2,000 working hours.
Q6: What should I do if the hydraulic system leaks oil?
A6: First, stop the engine and cut off the power supply. Check the leakage point (hose, joint, or hydraulic component), tighten the loose joint if it is a joint leakage; replace the damaged hose or component if it is a component damage. Do not continue operation until the leakage is solved to avoid further damage to the hydraulic system.
