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In the fields of large-scale construction and mining, selecting the right excavator is key to controlling operating costs and increasing project profits. To meet the needs of various application scenarios, Shandong LUGONG has launched a range of medium- to heavy-duty hydraulic excavators with operating weights ranging from 22 metric tons to 52 metric tons. These machines provide users with solutions for everything from urban infrastructure projects to mining operations.

LG220 Excavator: Urban Construction
The LG220 excavator comes standard with a 1.0 m³ bucket and is powered by a Cummins QSB5.9 or QSB6.7 engine, delivering up to 145 kW of robust power. Equipped with a Kawasaki K3V112 main pump and Rexroth control valves, it demonstrates exceptional digging responsiveness and control precision in deep foundation pit excavation, pipeline laying, and urban infrastructure projects.
LG260 Excavator: Earthmoving
Designed for site grading and large-to-medium-scale earthmoving projects, the LG260 features an increased operating weight of 26,000 kg and a bucket capacity upgraded to 1.4 m³. Equipped with a high-performance Kawasaki K3V140 hydraulic pump, it offers a maximum operating radius of 10,202 mm, providing extensive coverage and making it an ideal choice for boosting productivity per unit of time.
LG340 Excavator: Heavy-Duty Mining
The LG340 excavator has an operating weight of 34,000 kg and comes standard with a 1.6 m³ reinforced bucket. Powered by a Cummins 6LTAA8.9 engine with a rated power of 241 kW and paired with a high-efficiency hydraulic control system, it delivers exceptional sustained digging performance, making it the equipment of choice for medium-scale mining overburden removal and quarrying operations.
LG520 Excavator: Rock Applications
The LG520 has an operating weight of up to 52,350 kg and is equipped with an extra-large 2.8 m³ bucket. The powertrain delivers up to 298 kW. Its powerful crushing and loading capabilities are specifically designed for high-intensity ore stripping and rock excavation applications.
LUGONG entire excavator lineup ensures high operational availability and long-term durability across various environments through precise power matching, optimized hydraulic systems, and rigorous structural fatigue testing.
Q1: How do I select the appropriate excavator tonnage based on the scope of work?
A1: Generally, for medium-scale operations such as urban infrastructure projects and municipal pipeline installation, we recommend the LUGONG LG220 or LG260. For large-scale mining overburden removal or hard rock excavation in quarries, we suggest selecting an excavator with a tonnage of LG340 or higher to ensure high operational efficiency and structural strength.
Q2: How does the LUGONG excavator perform in terms of fuel economy?
A2: Through precise matching of powertrain and hydraulic power—carefully aligning engine output with hydraulic pump load—LUGONG significantly reduces power waste during non-operational periods. When combined with efficient operating practices, LUGONG excavators can significantly lower fuel consumption per unit of earthwork for users.
The Shandong LUGONG 22T–52T excavator series, with its precise coverage of multiple tonnage ranges and operating conditions, not only solves the challenge of selecting the right machine for specific applications but also ensures the smooth delivery of engineering projects through robust product performance. LUGONG Machinery is committed to providing global engineering and mining customers with highly efficient, reliable machinery and full-lifecycle technical support.
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