コマツ（小松製作所） PC 400-7

Customization can be arranged according to the purchasing requirements of the customers.

The Komatsu PC400-7 is a heavy-duty hydraulic excavator. Basic parameters: The total machine working weight is 41,400 kg, belonging to the large excavation (30-50 ton) category. It is equipped with the Komatsu SAA6D125E-3 model engine, with a rated power of 246 kW and a total displacement of 11.04 L. The bucket capacity is 1.9 m³. Operating performance: It adopts a crawler-type movement, with a high-speed movement speed of 5.5 km/h, a low speed of 3.0 km/h, a rotation speed of 9 rpm, and a climbing ability of 70%, capable of adapting to different terrains and working conditions. Excavation performance: The bucket excavation force is 275 kN, the boom excavation force is 214 kN, the arm length is 7,060 mm, the boom length is 3,380 mm, the working range is large, and the maximum digging depth can reach 7,820 mm. Hydraulic system: The working hydraulic oil circuit and the walking hydraulic circuit pressure are both 37.3 MPa, the rotation hydraulic circuit pressure is 27.9 MPa, ensuring rapid, accurate and powerful digging actions. Other features: The driver's cab is 3,265 mm in full height, with ample space and good visibility. The fuel tank capacity is 650 L, which can meet the needs of long-term continuous operation, and is convenient for maintenance and servicing. It is suitable for large-scale earthwork projects such as large-scale earth excavation and backfilling in infrastructure construction of roads and railways. Its powerful excavation force and large bucket capacity can efficiently complete the transportation of a large amount of earth and stone. In mines, it can be used for mining and loading of ore, and its sturdy structure and strong power can adapt to the harsh working environment of mines and handle complex conditions such as hard rocks. It can also be used for river dredging, dam construction and other water conservancy projects, with a large working range and digging depth, meeting the construction requirements of deep river excavation and high-dam height and width. In demolition operations, with an extended arm, it can be used to dismantle large buildings such as factories, chimneys, and water towers, using its powerful destructive force and flexible operation performance to complete demolition tasks safely and efficiently. In large construction sites such as commercial complexes and residential communities, it can perform foundation excavation and basement excavation work, laying the foundation for subsequent construction.