Core powertrain: global resource allocation of engines and transmissions

In the depths of the steel forest, there is a sound that is most captivating, and that is the symphony of engine roar. It is the heartbeat of construction machinery, the source of power that propels pistons, drives tracks, and lifts heavy loads. Within the vast system of construction machinery, the status of engines and transmissions is unshakable. Relying on our strategic cooperation with Weichai, Yuchai, Shangchai, and globally renowned transmission system suppliers, we have built an unbreakable core power supply chain, injecting a powerful soul into equipment such as excavators, loaders, and cranes.

Power systems are not simply about 'a big horse pulling a small cart', but rather a precise art of matching. Excavators operating in mines require explosive power with low speed and high torque to deal with hard rocks, while loaders working in ports need a transmission system with sensitive response and smooth shifting to adapt to frequent starts, stops, and turns. Our supply chain team understands this well. Through joint research and development with Weichai and Yuchai, we are able to customize engine curves according to the needs of the original equipment manufacturer. For example, the engine matched for a certain heavy-duty loader has been specially enhanced for torque output at medium and low speeds, making it unstoppable when shoveling and loading materials, like a tiger descending from the mountain.

As the transmitter of power, the importance of the gearbox is self-evident. We have collaborated with multiple gearbox manufacturers and introduced advanced hydraulic torque converters and planetary gear technology. On heavy-duty dump trucks, this gearbox can withstand huge impact loads, ensuring uninterrupted power when climbing at full load. On graders, the special gearbox design allows for micro-motion control, allowing operators to control the vehicle speed with millimeter-level precision, thus scraping out a perfect plane. This extreme pursuit of detail is a manifestation of our core competitiveness in the supply chain.

Environmental adaptability is the touchstone for testing powertrains. In mining areas with high altitude hypoxia, ordinary engines often experience a power drop due to insufficient air intake. The Shangchai engine we have integrated is equipped with an efficient high-altitude turbocharger, which can maintain over 90% of power output even in areas with an altitude of over 5,000 meters, allowing equipment to operate normally in the 'life-threatening zone'. In southern ports with high temperatures and humidity, we have collaborated with suppliers to develop special cooling systems and anti-corrosion coatings to prevent engine overheating and rusting, ensuring that equipment can handle high temperatures and intense heat with ease.

Fuel economy is the most concerned indicator for users. Leveraging our big data analysis capabilities with our supply chain partners, we have launched the 'Smart Power Chain' solution. By collecting operational data from engines and transmissions, we generate personalized operation reports for our customers, guiding operators on how to operate for optimal fuel efficiency. At the same time, we promote 'idle shutdown' and 'energy recovery' technologies. Through the perfect coordination between the engine and hydraulic system, these technologies convert potential energy during operation into electrical or hydraulic energy for storage, reducing the overall fuel consumption of equipment by more than 15%.

The response speed of after-sales service depends on the supply capacity of parts. We have established central and front-end warehouses covering the entire country, stocking a vast array of key spare parts such as engine assemblies, transmission casings, crankshafts, and gears. In the event of equipment power failure, our service engineers can quickly arrive at the scene with spare parts. For Weichai and Yuchai engines, we have even implemented a 'remanufacturing' service, recycling and repairing old parts, and providing customers with new parts that deliver 80% of the performance at 50% of the price, significantly reducing users' maintenance costs.

With the advent of the new energy wave, our supply chain is also undergoing active transformation. We have collaborated with battery manufacturers and motor companies to develop 'hybrid' and 'extended-range' powertrains. This new power system retains the diesel engine as an extender, while utilizing the electric motor to drive the vehicle and working equipment. It not only addresses the pain point of short range for pure electric equipment but also achieves significant fuel savings. In mines and ports, this hybrid equipment is gradually becoming the new favorite.

From every combustion in the cylinder to every rotation under the wheel, our core power supply chain not only connects with the world's top manufacturing technology, but also connects with customers' desire for efficiency and value. We use surging power to drive the construction machinery industry forward.