The engine and transmission system of the crawler bulldozer have been meticulously engineered and deeply optimized to fully adapt to complex operating conditions—delivering exceptional performance in environmental friendliness, operational reliability, and cost-effectiveness.

At the heart of the machine lies an advanced engine integrated with a state-of-the-art Common Rail Fuel System (MCRS). This sophisticated system enables precise control over fuel injection pressure and timing, ensuring atomized fuel is thoroughly mixed with air for complete combustion. Beyond significantly reducing harmful pollutant emissions (effortlessly meeting Euro A/III emission standards), this efficient combustion process also minimizes carbon deposition within the engine, slows down component aging, and enhances overall fuel efficiency—translating to lower operational costs for users.

Complementing the engine is the specially matched SECCO dual pre-filtration air intake system. Designed to tackle harsh working environments, this system effectively filters out dust, sand, and other impurities from the incoming air, preventing abrasive particulate matter from entering the engine’s internal chambers. By safeguarding critical components such as pistons, cylinders, and valve trains against premature wear and damage, the dual pre-filtration system eliminates potential early-stage failures at the source, further extending the engine’s service life and ensuring consistent, reliable operation even in dusty or rugged construction sites.

The torque converter of the crawler bulldozer adopts an advanced hydraulic transmission design integrated with an intelligent locking function, delivering a host of significant performance advantages that set it apart from conventional systems.

A core strength of this innovative design lies in its dynamic torque adjustment capability: the output torque can be flexibly and precisely adjusted in real time according to the actual working load. Whether the bulldozer is facing materials of varying hardness (such as loose soil, compacted gravel, or solid rock) or operating on slopes with different gradients, the torque converter can automatically adapt to the changing resistance without manual intervention. This intelligent adaptation not only avoids unnecessary power waste caused by mismatched torque output but also effectively prevents engine overload—ensuring stable and reliable operation even under complex and fluctuating working conditions, thus boasting exceptional load adaptability.

Beyond load adaptability, the dual-mode transmission switching mechanism (hydraulic + mechanical) further optimizes performance across different operating scenarios. During low-speed operations—such as fine leveling, precise shovel loading, or slow pushing— the system relies on hydraulic transmission to deliver smooth, seamless power transfer. This hydraulic-driven mode eliminates jitter and ensures steady control, making it ideal for tasks that require high operational accuracy and gentle power delivery.

When the bulldozer shifts to high-speed travel (e.g., transferring between construction sites or moving over long distances), the torque converter automatically activates the locking function to switch to mechanical transmission. This intelligent switching minimizes power loss during high-speed operation, as mechanical transmission reduces energy dissipation compared to pure hydraulic transmission. Compared with traditional torque converter systems without locking functions, this dual-mode design achieves a remarkable 10%-15% fuel savings. This not only greatly enhances the machine’s fuel economy but also significantly reduces long-term operational costs for users—offering tangible economic benefits through lower fuel consumption over the entire service life of the bulldozer.

In summary, the hydraulic transmission with locking function combines the flexibility of hydraulic control and the efficiency of mechanical transmission, balancing operational precision, load adaptability, and fuel efficiency to meet the diverse demands of modern construction work while reducing user costs.

FAQ：

What products does your company mainly produce?

We specialize in R&D, design and manufacturing of excavators, bulldozers and other construction machinery. As a leading enterprise in China, our large-scale energy-saving mining machinery and micro electric equipment reach international advanced standards. Customized solutions are also available.

What payment terms do you accept?

Standard terms: 30% deposit after contract signing, 70% balance settled before shipment. Flexible negotiations for long-term partners or large orders.

How long is the delivery cycle?

Inventory products: Shipped immediately after balance payment.

Regular orders: 30–45 working days after deposit receipt.

Custom orders: Extended delivery time based on specifications (detailed schedule provided upon confirmation).

What transportation methods are supported?

We offer sea, air and road transportation. Large equipment is shipped via container or bulk cargo for safe and efficient delivery.