On February 8, Shantui held a major shipment ceremony, sending over a hundred LE60-X5 pure electric loaders, along with L68K-G, L58K-G, L55-G, and L53-G models, to key regions such as Shanxi, Yunnan, Inner Mongolia, and Xinjiang.     With growing national emphasis on environmental protection, demand for zero-emission, low-noise, and energy-efficient electric loaders is on the rise. Shantui’s strategic product, the LE60-X5 Pure Electric Loader, features dual-gun fast-charging technology, fully charging in just 1.5 hours. Its high-capacity battery enables continuous operation for 6–10 hours, while the fully enclosed power battery ensures exceptional dust and water resistance, offering superior safety and reliability. The loader also boasts a spacious and comfortable cab, enhancing the driving experience. With zero emissions, low energy consumption, and minimal maintenance needs, the LE60-X5 reduces operational costs by over 75% compared to diesel models, and its power battery comes with a five-year warranty.     The L58K-G Loader, built on the L58K platform, complies with China’s National IV emission standards and offers enhanced adaptability, operational efficiency, and driving comfort. Weighing 18.5 tons with a 3,300mm wheelbase, it features a mid-position articulation and reinforced structure for optimal load distribution and outstanding overall performance. Recognized for its efficiency, energy-saving features, and environmental benefits, the L58K-G has quickly gained customer approval as a powerful tool for sand, mining, and port operations.     Since designing its first loader in 1978, Shantui has built over 40 years of expertise in the field. Today, the company's National IV-compliant models demonstrate its steadily growing market influence and product competitiveness. By leveraging its group-wide industrial advantages, Shantui loaders feature a premium powertrain, combining a Weichai engine, Linde hydraulics, and core Shantui components for customized performance, superior fuel efficiency, and outstanding durability. With exceptional stability and strength, these loaders are built to withstand the harshest working conditions.

Issue Description: An excavator experiences weak and slow rotation, whether performing standalone or composite rotation movements. Other functions remain normal.     Troubleshooting Steps: 1. Check Electrical Components: Measure the feedback voltage of the swing low-pressure sensor: Neutral position: 0.5V (within the normal range of 0.4V–0.5V) Full operation of the control lever: 4.3V (within the normal range, should not exceed 4.5V) No anomalies detected. Proceed to the next step.   2. Measure the Solenoid Current for the Front Pump: Full swing operation: 540mA (within the standard range of 350mA–750mA) No anomalies detected. Proceed to the next step.   3. Check Hydraulic System: Measure secondary pilot pressure for swing operation: 39 kg (normal, as the required pilot pressure is >35 kg) No anomalies detected. Proceed to the next step.   4. Measure Swing Relief Pressure: Measured pressure: 195 kg (significantly lower than the normal relief pressure of 280 kg) Attempted adjustment of the relief valve: No change in pressure. Measure main relief valve pressure: 348 kg (normal) Conclude that the main hydraulic pump and main relief valve are functioning normally.   5. Disassemble and Inspect Swing Motor Relief Valve: No internal damage detected Conclude that the relief valve is functioning normally.   6. Disassemble and Inspect the Swing Spool in the Main Valve: The spool moves freely. Return spring is intact with no breakage. Conclude that the spool valve is functioning normally.   7. Disassemble and Inspect the Swing Motor: Severe wear found on the valve plate and the piston pump contact surface. Internal leakage in the swing motor is causing low hydraulic system pressure, leading to weak rotation.   8. Solution: Replace the severely worn valve plate. Reassemble the swing motor. Restart the excavator—rotation operates normally