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World’s first! Ruisu Intelligent’s 4.2 MWh mobile energy storage and charging solution powers LiuGong’s world’s first 135-ton electric excavator.

Release date:

2025-10-25

Our company, in collaboration with LiuGong Group, has delivered an industry‑leading solution: a full‑cycle energy system custom‑designed for the world’s first 135‑ton class electric excavator. Centered around a high‑capacity 4.2 MWh mobile charging and storage system, it is paired with a 1500 V high‑voltage platform and an integrated 640 kW four‑gun charger, effectively addressing the challenge of energy replenishment for large‑scale electric construction machinery.

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While “energy islands” such as open-pit mines and large-scale infrastructure projects are still grappling with the challenge of ensuring continuous power supply for electrified equipment, Our company, in collaboration with LiuGong Group, has delivered an industry‑leading solution: a full‑cycle energy system custom‑designed for the world’s first 135‑ton class electric excavator. Centered around a high‑capacity 4.2 MWh mobile charging and storage system, it is paired with a 1500 V high‑voltage platform and an integrated four‑gun 640 kW charger, effectively addressing the challenge of energy replenishment for large‑scale electric construction machinery.

Tackling Industry Pain Points Head-On: Customizing the Energy Core for “Giant” Electric Equipment

Amid the electrification wave in construction machinery, heavy-duty equipment such as 135‑ton excavators has long grappled with three major energy challenges: conventional charging stations struggle to meet their peak power demands; diesel generators are both highly polluting and costly; and standard energy storage systems are constrained by limited capacity and poor compatibility. The development of this landmark product from LiuGong urgently calls for a flexible power‑supply solution capable of overcoming the limitations imposed by “energy islands.”

Based on a deep understanding of the industry’s pain points, our company has developed a full‑cycle energy solution that delivers three key breakthroughs:

Capacity Innovation

• The 4.2 MWh mobile charging and storage system can store the annual electricity consumption of 200 households, and a single charge is sufficient to power an excavator through eight hours of heavy‑load operation, fully meeting the mine’s daily operational requirements.

High-pressure and high-efficiency

An industry-leading 1500V high-voltage platform, paired with a customized battery management system (BMS), reduces charging losses by 30% and achieves power transmission efficiency exceeding 95%, seamlessly meeting the high-voltage power requirements of large-scale equipment.

Smart Fast Charging

• The integrated 640 kW four‑gun charger employs liquid‑cooling technology, keeping cell temperature differentials within 2°C and enabling “one hour of rest, then full‑charge and back to work,” with charging efficiency improved by 40% compared to conventional equipment.

Full‑Lifecycle Services: End-to-End Support from Technical Adaptation to Operations and Maintenance Assurance

Unlike a one‑stop equipment supply model, our company has developed an end‑to‑end energy services framework that covers the entire lifecycle of the equipment, ensuring hassle‑free operation and maintenance for LiuGong electric excavators—from commissioning to ongoing operations.

Early-stage custom adaptation

To meet the peak power requirements of a 135‑ton excavator, we have specially optimized the energy storage system’s charge–discharge profile and developed a 10 kV step-up module, ensuring seamless integration with the equipment’s electrical system and addressing the poor compatibility issues inherent in conventional solutions.

Mid-term Intelligent Operations and Maintenance

Equipped with an IoT cloud platform, it enables real-time monitoring of 12 parameters, including battery status, charging power, and device temperature. Leveraging AI algorithms to predict maintenance needs, it keeps the unplanned downtime rate below 5%, significantly lower than the industry average.

Flexible scaling in the later stages

Employing a modular design, the system allows for scalable expansion or reduction of energy storage units based on project size. Coupled with time-of-use pricing strategies, it helps users cut electricity costs by 30%, while shortening the investment payback period by 1–2 years compared to conventional solutions.

Data Speaks Volumes: A Dual Breakthrough in Sustainability and Performance

The real-world test data from this energy solution at LiuGong’s experimental site underscores the disruptive value of new‑energy technologies:

Economic Leapfrogging

• Compared with a diesel‑powered excavator of the same capacity, annual fuel costs are reduced by more than RMB 1.2 million; when combined with savings on maintenance expenses, total costs over three years decline by 45%.

Significant environmental benefits

• Each unit can reduce carbon emissions by approximately 800 tons annually, equivalent to planting 43,000 mature trees, perfectly aligning with the requirements for green construction in mining under the “dual carbon” goals.

Strong scene adaptability

• Passing a −20°C cold-start test and achieving IP54 waterproof certification, it operates reliably in extreme environments such as open-pit coal mines in Inner Mongolia and high-altitude infrastructure projects, breaking the traditional limitations of energy-storage equipment in specific application scenarios.

Industry Milestone: Jointly Ushering in a New Era of Electric Construction Machinery

The successful deployment of LiuGong’s world‑first 135‑ton class electric excavator not only marks the maturation of China’s large‑scale construction‑equipment electrification technology, but also validates the feasibility of a synergistic “intelligent equipment + green energy” model. Our 4.2 MWh mobile energy storage and charging solution fills a critical gap in supporting infrastructure for heavy‑duty electric construction machinery, while offering a replicable Chinese approach to decarbonizing sectors such as mining and infrastructure development.

From energy adaptation for individual devices to building an industry-wide energy ecosystem, we consistently leverage technological innovation to meet market demands. If your company is grappling with challenges such as recharging electric equipment or adapting to new‑energy applications, we invite you to consult us for tailored solutions. Ruishu Intelligence offers comprehensive energy‑solution services to ensure your success.

Company official website: http://www.gzruisu.com/

Company Name: Guangzhou Ruishu Intelligent Technology Co., Ltd.

Company Service Hotline: 020-66260688 / 133-3288-5836

Company Address: No. 160, Tashan Avenue, Zengjiang Street, Zengcheng District, Guangzhou, Guangdong Province

Keywords:

A national-level “Specialized, Refined, Distinctive, and Innovative” product! Ruishu has unveiled its entire lineup of mobile energy storage and charging solutions, with capacities ranging from 106 kWh to 1.29 MWh, perfectly suited for all application scenarios.

Industry-first! Ruisu Intelligent’s 2.5 MWh mobile charging‑and‑storage vehicle simultaneously powers two electric excavators, addressing key pain points in high‑voltage energy‑replenishment projects.