The QSK19 electronically controlled engine in the 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.

The QSK19 engine has undergone rigorous operational testing, with core components crafted from high-strength materials via precision manufacturing. This enables it to withstand harsh working conditions—including high temperatures, heavy dust, and heavy loads—while delivering exceptional reliability during long-term continuous operation, outperforming conventional engines. Supported by a global service network, users can access prompt repair, maintenance, and spare parts services whether in domestic mining areas or overseas infrastructure projects, eliminating cross-regional after-sales concerns and ensuring stable equipment performance.

The SD60CH’s transmission system integrates a locking hydraulic torque converter with high/low-speed dual-drive modes, achieving a balance between power output and fuel efficiency. The torque converter automatically adjusts output torque based on load: when encountering hard obstacles or increased resistance, it boosts torque to prevent engine stalling; when the load eases (e.g., leveling loose soil), torque adapts accordingly to maintain steady power. This design eliminates the need for frequent operator shifting, greatly enhancing operational smoothness and load adaptability.

The transmission system further features intelligent switching between low-speed hydraulic and high-speed mechanical transmission modes, tailored to diverse operational scenarios. For low-speed tasks—such as heavy-load dozing, steep slope climbing, or precise earthmoving—hydraulic transmission is engaged. Power is transmitted via hydraulic oil, enabling smooth speed regulation that eliminates power shocks, reduces component wear, and protects the transmission system. During high-speed transitions (e.g., long-distance travel between construction sites), the system automatically switches to mechanical transmission, which delivers higher transmission efficiency and minimizes power loss. Compared to single-mode drive systems, this dual-transmission design significantly lowers fuel consumption, helping users save substantial fuel costs over long-term operations while achieving both high efficiency and economic benefits.

FAQ:

1.What products does the company mainly produce?

We focus on the research and development, design and production of a full range of excavators, bulldozers and other construction machinery, and are a leading enterprise in the field of large-scale energy-saving mining machinery and micro electric machinery in China. Our mining equipment and micro electric products have reached the international advanced level in technology and can provide customized solutions based on the specific needs of customers.

2. What are the payment methods?

The payment terms we usually accept are as follows: 30% of the total order amount should be prepaid as a deposit after the contract is signed, and the remaining 70% of the payment should be settled before the goods are dispatched.

3. How long is the delivery cycle?

The standard delivery time is 30 to 45 days after receiving the deposit. Inventory products can be dispatched immediately, while custom orders may require additional delivery time, depending on the specifications.

4. Which transportation methods are supported?

We offer flexible and diverse logistics solutions, covering various routes such as road, sea and air transportation. Most of the equipment can be transported by container or bulk cargo to ensure safe and efficient delivery.