コマツ（小松製作所） 78US

The Komatsu PC78US is a 7-8 ton ultra-compact tail swing crawler excavator, designed primarily for urban narrow-space operations, municipal engineering, landscaping and small-scale infrastructure projects. With its compact body, flexible control and reliable performance, it has become a mainstream model in the small excavator market. It has an operating weight of approximately 7.4 tons and is equipped with an original Komatsu engine delivering a rated power of around 48.8 kW. Matched with a high-efficiency hydraulic system and multiple working modes, it balances powerful output with fuel economy. The standard bucket capacity is 0.28 m³, making it suitable for various working conditions such as earth excavation, crushing, dredging and landscaping. Its core advantage lies in the ultra-compact tail swing design—the minimal rear-end swing allows it to operate freely in confined spaces like narrow streets, indoor areas and foundation pit corners. It can also be equipped with an optional dozer blade to further enhance the convenience of site leveling and machine relocation. Meanwhile, the ergonomically designed cab offers wide visibility and excellent noise control, ensuring both operational comfort and safety. The excavator features outstanding durability and easy maintenance, and boasts stable adaptability to working conditions and good value retention, whether it is used as a new machine or a second-hand unit in circulation.