コマツ（小松製作所） PC 400-7

The Komatsu PC400-7 is a 40-ton heavy-duty tracked backhoe excavator. With its powerful engine and stable operating performance, it is widely adaptable to various large-scale heavy engineering projects. Applicable Scenarios: Mining Operations: As one of the core application scenarios for this model, its 275kN bucket digging force easily handles the excavation and stripping of hard materials such as ore and hard rock. Meanwhile, its 41.4-ton overall weight and stable tracked walking design maintain operational stability on uneven mine terrain, making it suitable for daily mining and slag removal work in open-pit coal mines, iron mines, and other open-pit mines. Large-Scale Earthmoving Projects: It offers significant advantages in large-scale earthmoving operations such as urban new area development and industrial park site leveling. With a 1.9m³ bucket capacity and high-efficiency operation, it can quickly complete large-scale earthwork excavation and transportation. Its maximum digging radius of 12025mm and maximum digging depth of 7820mm also meet the needs of deep earthwork excavation, significantly improving the efficiency of site leveling and foundation excavation. Road and Infrastructure Construction: Suitable for roadbed engineering of large-scale transportation infrastructure such as highways and railways, it can efficiently carry out roadbed excavation, filling, and slope trimming operations. Its 70% climbing ability can handle slope scenarios in roadbed construction, while its strong traction ensures stable movement on soft ground in unfinished roadbeds. It can also be used for bridge foundation pit excavation, matching the construction intensity of large-scale infrastructure projects. Water Conservancy Projects: Suitable for river dredging, reservoir dredging, and dam construction. Its tracked design allows it to operate in muddy terrain near water, and its large digging depth can handle silt and rocks at the bottom of the river. Its powerful boom digging force (214kN) can help with earthwork compaction and slope trimming during dam construction, ensuring the quality and progress of water conservancy projects.