On December 12, Shantui Co., Ltd. and China National Heavy Duty Truck Group (Sinotruk) jointly held a large-scale delivery ceremony for new energy concrete mixer trucks in Jinan. The event, themed “Empowering Technology, Equipping a Better Future,” brought together representatives from industry associations, strategic partners, and key customers, highlighting the companies’ shared commitment to green and low-carbon development.     Driving Green Development Through Collaboration   The ceremony opened with a traditional lion dance, setting a celebratory tone for the event. Industry association representatives noted that new energy equipment has become a key driver in the green transformation of the concrete industry, emphasizing that technological innovation combined with low-carbon development is now a clear industry direction. Shantui and Sinotruk were highly recognized for leveraging the integrated industrial strengths of Shandong Heavy Industry Group to achieve technological breakthroughs and set a benchmark for sustainable development across the sector.   Representatives from both companies stated that they will continue to deepen cooperation based on the group’s industrial chain synergies, expand their new energy product portfolio, and further enhance full-lifecycle service capabilities. By aligning closely with China’s “dual-carbon” strategy, the two companies have already made solid progress in regional markets and aim to support the green transformation of the concrete industry with high-quality products and professional services.     Key Handover Marks a New Stage of Partnership   Following the traditional lion eye-dotting ceremony, Shantui representatives officially handed over the symbolic keys of the new energy mixer trucks to customers. This moment not only reflected Shantui’s commitment to product quality and customer responsibility, but also marked a new milestone in cooperation between the partners.     High-Performance Products Power Low-Carbon Upgrade   The Shantui new energy mixer trucks are built on SINOTRUK HOWO chassis and benefit from optimized powertrain matching within Shandong Heavy Industry Group. Featuring a spacious cab, air-suspension seats, ABS, and advanced safety systems, the vehicles deliver high levels of safety, reliability, and operating efficiency   Equipped with a 350 kWh long-range lithium iron phosphate battery, the trucks can be charged in approximately 40 minutes and achieve a driving range of over 200 kilometers. With low noise operation and zero emissions, operating costs are reduced by around 55% compared with conventional diesel mixer trucks.   The mixer drum is manufactured from 700-grade high-strength steel for superior wear and corrosion resistance. Its patented concave double-curved spiral blade design, combined with a dual-logarithmic spiral layout, increases effective drum capacity by 8% without compromising loading or unloading efficiency, effectively preventing concrete segregation and ensuring higher transport quality.   As green development becomes a defining industry trend, this batch delivery represents not only a successful outcome of technological collaboration, but also a vivid demonstration of the “technology-empowered equipment” concept. Looking ahead, Shantui and Sinotruk will continue to strengthen cooperation, drive innovation, and contribute to high-quality, sustainable development of the industry while supporting national dual-carbon goals.

When an excavator engine runs at high temperature, the belt tension is often inspected first. Incorrect tension affects cooling performance and may lead to overheating. Here are the standard methods for checking and adjusting belt tension.   Belt Tension Inspection Methods   Visual and Manual Belt Check Excavator engines are equipped with alternator belts, fan belts, and air-conditioning belts. Inspect each belt for wear and ensure proper tension for stable performance. When pressing the midpoint of the belt with your thumb, insufficient tension will cause belt slippage, while excessive tension may damage bearings.   Using a Spring Scale Pull the belt with a spring scale and measure the deflection using a ruler. With repeated checks, operators become familiar with the correct tension by feel.   Manual Deflection Check (Approx. 6 kg Force) Apply about 6 kg of force at the midpoint between two pulleys and measure the belt deflection. The value should fall within the manufacturer’s recommended range.   Belt Tension Adjustment Methods   Adjusting Through the Manual Hydraulic Pump Set the manual valve of the hydraulic pump to the tensioning position. Loosen the necessary bolts and adjust until proper balance is achieved.   Ensuring Even Load During Tensioning Rotate the pulley during the tensioning process to distribute the load evenly on the belt. Once pressure is balanced, tighten the bolts onto the motor base, secure the base, and return the manual valve to the neutral position to release pressure.   Adjusting by Changing Center Distance Move the adjustable pulley to modify the center distance between pulleys, increasing or reducing belt tension as needed.   Belt Replacement Procedure When replacing a belt, move the adjustable pulley fully inward to minimize the center distance. This creates enough slack to remove and install the belt.