As a large large crawler bulldozer with powerful performance, the Shanbo SD90 Bulldozer is a core equipment for dealing with heavy-duty and large-scale earthwork projects. Beyond its outstanding QSK19 electronically controlled engine, it is also equipped with a range of high-performance configurations to enhance operational reliability, fuel efficiency and safety.

Firstly, it adopts SECCO's double pre-filtration air intake system. This advanced air filtration system features a two-stage filtration structure: the first stage pre-filters large particles such as dust and sand in the air, while the second stage performs fine filtration to remove tiny impurities. By preventing harmful contaminants from entering the engine's combustion chamber, it effectively avoids premature wear of key engine components (such as pistons, cylinders and valves) caused by impurity erosion, thus significantly reducing the risk of early engine failure and extending the engine's service life.

In terms of transmission, the SD90 adopts a dual-mode design: hydraulic transmission for low-speed operations and mechanical transmission for high-speed operations. This intelligent transmission matching not only ensures smooth power output during low-speed, heavy-load tasks (such as mine stripping and large-volume earth pushing) but also switches to mechanical transmission with higher efficiency during high-speed transfer between job sites. Compared with single-transmission models, this design saves 10%-15% of fuel consumption, greatly improving fuel economy and reducing long-term operating costs for users. Additionally, it is equipped with a hydraulic torque converter with a locking function. When the bulldozer operates under varying loads, the torque converter can automatically adjust the output torque according to the load changes—providing larger torque during heavy-load conditions to avoid stalling, and maintaining stable power output during light-load conditions. This strong load adaptability allows the SD90 to handle complex and variable job site conditions with ease.

Its common rail fuel system (MCRS) is fully compliant with Euro A/III emission standards. The MCRS system precisely controls fuel injection pressure, timing and quantity through an electronic control unit (ECU), ensuring more complete fuel combustion. This not only enhances the engine's power output but also minimizes the emission of harmful substances such as nitrogen oxides (NOx) and particulate matter (PM), meeting strict international environmental requirements and reducing environmental pollution.

In terms of safety, the SD90 is equipped with a normally closed braking system that features both regular braking and parking braking functions. The normally closed design ensures that the brake automatically engages when the bulldozer is not in operation or when a fault occurs, effectively preventing the vehicle from slipping on ramps—even on steep slopes common in mining or mountainous construction sites. This provides reliable safety protection for both the equipment and the operator, eliminating potential safety hazards during slope operations.

The bulldozer's gearbox adopts a planetary gear structure, which realizes forward, reverse and various speed changes by manipulating hydraulic control valves. The planetary gear structure offers a wider range of transmission ratios, enabling smooth and precise speed adjustment to match different operational needs. Combined with a multi-disc clutch and hydraulic combined forced lubrication system, it ensures stable power transmission: the multi-disc clutch enables smooth engagement and disengagement of power to reduce shifting impact, while the forced lubrication system continuously delivers lubricating oil to gear meshing points and clutch components. This not only reduces friction and wear but also dissipates heat generated during operation, further improving the gearbox's reliability and service life.

Beyond the QSK19 engine, Shanbo also offers the option of equipping the SD90 with Weichai or Cummins engines—both well-known brands in the industry. These engines boast reliable quality, with mature manufacturing processes and strict quality control to ensure stable performance even in harsh working environments. They provide sufficient power to drive heavy-duty operations, while their high combustion efficiency further optimizes fuel consumption. Moreover, these engines are designed for easy maintenance: key maintenance points are easily accessible, and replacement of wearing parts is straightforward, reducing maintenance time and labor costs. As big-brand engines, they come with a global after-sales service network—users can enjoy timely maintenance, repair and spare parts supply services in almost all countries around the world, eliminating concerns about after-sales support during cross-border operations.

Consistent with Shanbo's commitment to sustainability, the SD90 bulldozer is manufactured in strict accordance with international safety and environmental protection standards. From the selection of environmentally friendly materials (such as low-toxicity paints and recyclable metal components) to the optimization of production processes (to reduce waste water, waste gas and noise emissions during manufacturing), every link adheres to green production concepts. This not only ensures the equipment meets global safety requirements for operators but also greatly reduces its environmental footprint during both production and operational phases.