On March 31, 2025, the China Construction Machinery Green & Intelligent Conference and the China Construction Machinery Annual Product TOP50 List Release Ceremony were grandly held in Beijing. The E6690H excavator, a heavy-duty mining model from Shandong Lingong (SDLG), won the "Market Performance Gold Award" for its outstanding market performance and technological innovation, once again demonstrating its hard-core strength in the field of high-end, large-scale construction machinery products.

The SDLG E6690H excavator, which won the Market Performance Gold Award, adopts a self-developed fully electronically controlled integrated system, multi-controller coordinated control technology, and a fully electronically controlled positive flow system. It offers strong adaptability to working conditions, good overall machine coordination, and high energy efficiency, and is widely used in heavy-duty conditions such as hard-rock digging and excavation in mines.

01 Focusing on Customer Needs, Forging a Sharp Tool for Mining Operations

The E6690H excavator is a non-traditional mainstream model tailor-made by SDLG based on mining users' urgent demand for "large tonnage, high cost-effectiveness, and low maintenance cost." It is equipped with a Cummins 15L 563kW high-power engine that requires no urea, making maintenance convenient; combined with a 280cc large-displacement main pump and a fully electronically controlled hydraulic system, it achieves energy-efficient and highly productive operation with "low speed and high torque."

According to measured data, under the same working conditions, the E6690H excavator reduces fuel consumption per hour by 13%, saving up to 70 liters of fuel per day, with significantly improved loading efficiency, making it the "efficiency workhorse" for heavy-duty conditions such as open-pit coal mines in Shanxi, Shaanxi, Inner Mongolia, and Xinjiang.

02 Intelligent Empowerment, Reshaping the Human-Machine Collaboration Experience

As a benchmark product of SDLG's high-end strategy, the E6690H excavator deeply integrates intelligent technology: the self-developed fully electronically controlled integrated system supports multi-controller coordinated control and OTA remote upgrades, enabling customized working conditions and preset operation modes; the 8-inch LCD touchscreen integrates Bluetooth, air conditioning control, and other functions, and together with the air-suspension heated seat and hot/cold storage box, creates a comfortable and intelligent control environment for the operator.

In addition, designs such as the adjustable track gauge of the heavy-duty undercarriage and the double-row ball slewing bearing further strengthen stability and durability under harsh mining conditions, earning widespread praise from customers for "good coordination and high reliability."

03 High-End Layout, Driving the Internationalization Journey

With new quality productive forces as the engine, in recent years, under the guidance of the "dual carbon" goals, SDLG has continued to increase investment in electric and intelligent technology R&D, and its hybrid loaders, electric excavators, and other products have set industry benchmarks.

Focusing on high-end breakthroughs, SDLG has deepened its cultivation in the large-tonnage field. Relying on core technologies such as self-developed main control valves and customized processes for heavy-duty structural parts, it has built a series of large-tonnage construction machinery products covering mining and infrastructure. At the same time, it is accelerating its international layout, developing customized large-tonnage models for the European and American markets, and breaking through technical barriers with the brand strength of "reliably bearing heavy trust." In the future, the company will further explore cutting-edge technologies such as hydrogen power and digital twins, reshape the global construction machinery industry landscape with new quality productive forces, and inject hard-core momentum into high-quality development.

Winning the TOP50 Gold Award this time is not only an affirmation of the market value of the E6690H excavator, but also a vivid annotation of SDLG's innovation-driven industry upgrading. Moving toward a new era, SDLG is writing a high-end chapter of China's intelligent manufacturing with solid steps.