The QSK19 electronically controlled engine in the Shanbo SD60CH bulldozer is its core power source for heavy-duty construction operations. With its low fuel consumption, high power, high reliability, and global service, it's a reliable choice for users in high-intensity operations. This engine utilizes advanced electronic control technology to precisely adjust fuel injection to the load, avoiding wasted power. It automatically reduces fuel flow during light-load operations (such as site leveling) while delivering full power during heavy-load bulldozing (such as mine stripping). This delivers "power on demand," ensuring operational efficiency while significantly reducing fuel consumption.

Furthermore, the QSK19 engine has undergone rigorous operating tests. Its core components utilize high-strength materials and precision manufacturing processes, making it capable of withstanding harsh operating environments such as high temperatures, high dust levels, and high loads. It's also remarkably reliable even in long-term, continuous operation, offering far superior reliability to conventional engines. Furthermore, with its global service network, users can quickly access repair, maintenance, and spare parts services, whether in domestic mining areas or on overseas infrastructure projects. This eliminates after-sales concerns associated with cross-regional operations and ensures the continued stability of the equipment. The SD60CH's transmission system utilizes a locking hydraulic torque converter combined with high- and low-speed dual-drive modes, balancing power output and fuel economy. The locking hydraulic torque converter automatically adjusts output torque based on the load. When the dozer encounters a hard obstacle or the load increases, the torque converter automatically increases torque to prevent engine stalling. When the load decreases (such as when leveling loose soil), the torque adjusts accordingly, maintaining stable power output. This eliminates the need for frequent shifting by the operator, significantly improving operational smoothness and load adaptability.

The transmission system also supports intelligent switching between low-speed hydraulic and high-speed mechanical transmission. During low-speed operations (such as heavy-load dozing and climbing), hydraulic transmission is used, transmitting power through hydraulic oil for smooth speed regulation, avoiding power shock and protecting transmission components. During high-speed transfers (such as long-distance moves between sites), the system switches to mechanical transmission, achieving higher transmission efficiency and reducing power loss. Compared to single-drive systems, this design significantly reduces fuel consumption, saving users considerable fuel costs over long-term operations, offering both efficiency and economy.