Recently, in Hailar, Inner Mongolia,
The testing of the Ruisu 3 MW charging pile has already begun. Thermalization phase
Data show that the Ruisu charger can operate normally in local low-temperature conditions and, under high-load operating scenarios involving multiple mining trucks,
Even after 24 hours of continuous charging, it can still maintain efficient operation, with an average of 15 minutes required to fully recharge a 220‑ton heavy‑duty mining truck. Current commissioning results show… Continuous The maximum output current reaches 1100A , it’s still not the limit.
This will
Greatly reduces the charging burden at mining sites.
The Ruisu 3 MW charging system comprises a main charging cabinet, sub‑cabinets, and an automated hand‑plug gun robotic arm.
Hailar is located in Inner Mongolia and belongs to the prefecture-level city of Hohhot. With annual minimum temperatures plunging as low as −40°C, it experiences a harsh climate. To ensure the stability and safety of our 3 MW charger, we subjected it to a variety of demanding environments—ranging from laboratory conditions to real-world applications. Whether confronted with extreme weather or heavy‑load operating scenarios, the charger has demonstrated reliability and efficiency that exceed expectations. In this field test, its performance was outstanding.
The test must meet the following requirements: the equipment must remain in standby 24 hours a day, and it must support the operation of 50 mining trucks—seven days a week, with three shifts per day, each shift lasting eight hours—ensuring continuous, round-the-clock operation.
This all-electric mining truck is primarily used for transporting raw coal and overburden in mining operations.
Under ideal operating conditions, a fully charged battery can sustain continuous operation for 6 hours, and it is estimated to replace approximately 600 tons of fuel annually.
“Zero-emission” electric mining trucks help mining companies reduce energy consumption and emissions, cut costs, and boost efficiency, becoming a truly green transportation solution for mining operations.
According to statistics, the traditional…
A 220-ton-class fuel‑powered mining truck operates continuously around the clock, consuming roughly 4,000 liters of fuel per day. In contrast, this all‑electric mining truck requires approximately 12,000 kWh of electricity over a full day of operation, according to preliminary estimates.
Total costs can be reduced by 7. 0%
。
According to calculations, once put into regular operation, each electric mining truck can reduce annually… CO ₂ Emitting more than 1,500 tons, a single vehicle can provide for the mining company. Approximately save on operating costs RMB 5 million per year 。
Ultra-high power, lightning-fast charging
As the industry’s first ultra‑high‑power charging solution, it has revolutionized conventional charging methods, delivering unprecedented charging speeds for mining trucks. Current test results show:
The MCS single‑gun has a maximum continuous charging current of 1,100 A (currently in commissioning), with a configured maximum current of 3,000 A.
, charging efficiency has been significantly improved. Charging time has been drastically reduced to just a few tens of minutes, enabling rapid recharging.
The charging gun incorporates 36 microchannel cooling tubes and, in conjunction with a constant‑temperature ethylene glycol solution maintained at 50°C, can limit temperature rise to ≤3 K at a current of 2,000 A—while reducing the cable’s outer diameter by 40% compared to conventional designs.
The equipment is equipped with an intelligent power‑scheduling charging system that dynamically adjusts power output based on actual charging demands, ensuring an efficient and safe charging process. It also supports seamless capacity expansion and upgrades, with maximum power scalability up to 6 megawatts, meeting the charging needs of mining truck fleets of varying sizes and configurations.
Highly weather-resistant, ensuring stable operation even in extremely cold environments.
The equipment is finished with an acrylic polyurethane topcoat and an epoxy zinc‑rich primer. The topcoat offers exceptional weather resistance, providing long‑term protection against UV radiation, wind, rain, and other natural elements, thereby ensuring the coating’s stability and durability. The primer delivers outstanding anti‑corrosion performance, effectively safeguarding the steel substrate and extending the equipment’s service life. Equipped with a built-in air conditioner, it features intelligent temperature control and functions such as condensation prevention and freeze‑protection, enabling reliable operation in northern regions characterized by large diurnal temperature swings, severe cold, and dusty mine environments. It also performs well under the intense solar radiation of Xinjiang and the Qinghai–Tibet Plateau, operating stably across a wide temperature range from –50°C to 45°C.
Liquid cooling technology ensures smooth operation.
The charging pile features independent liquid‑cooling for thermal management, and its DC power supply unit is equipped with a dedicated air intake and exhaust duct, ensuring that non‑heating components are not exposed to moisture, dust, or other contaminants. During operation, the exhaust vent creates a negative‑pressure chamber that efficiently removes heat, providing excellent overall heat dissipation and enabling the system to withstand continuous operation as well as prolonged exposure to high outdoor temperatures. A dust‑proof cotton filter is installed in the airflow path to prevent dust ingress and maintain reliable performance, while also being easy to remove and replace for convenient maintenance.
High degree of automation
Compared with traditional manual charging, this system is equipped with an autonomous robotic arm that addresses the challenges of heavy charging cables and difficult plug‑in. It enables the robot arm to automatically insert the charging gun and withdraw it when the battery is fully charged, eliminating the need for manual intervention and allowing drivers to rest freely during the charging process. With contactless charging, the experience is both safer and more convenient.
Wide range of application scenarios
Its unique materials and design give the charger exceptional environmental durability, significantly boosting the operational efficiency of mining trucks and heavy-duty vehicles in mines, metallurgical facilities, and ports.
Mines, ports, and terminals: Significantly enhance the operational efficiency of mining trucks.
Logistics parks and construction sites: Flexible deployment, on-demand operation, meeting the needs of frequently relocated charging stations.
Large-scale mining truck fleet: intelligent power scheduling and seamless capacity scaling effortlessly meet high‑power and ultra‑high‑power charging demands.
Remote-site operations: Weather-resistant design ensures stable equipment performance in extreme environments.
Maintaining the efficient operation of heavy‑duty electric mining trucks in extremely cold conditions represents not only the ultimate test of the Southern technical team’s expertise but also a groundbreaking challenge to their innovative capabilities.
MCS megawatt‑class ultra‑fast charging technology represents a revolutionary energy‑replenishment solution for heavy‑duty electric mining trucks, delivering six times the charging efficiency of conventional systems and enabling an 8‑hour high‑intensity shift after just 15 minutes of charging. This innovation has been validated across multiple open‑pit coal‑mining sites in China, with test data showing an energy conversion efficiency of 97% and annual diesel savings of up to 120 tonnes per unit, paving the way for the electrification of mine‑site transportation.
With the International Charging and Battery‑Swapping Standards Committee (CharIN) recently incorporating MCS into the global standards framework, this technology is expected to reduce deployment costs by 45% over the next three years, providing critical support for the zero‑carbon transformation of mining and port logistics worldwide.
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