The Hitachi 120 is a classic 12-ton medium-sized hydraulic excavator from Hitachi Construction Machinery, with mainstream domestic models produced by Hefei Hitachi Construction Machinery. It is equipped with a durable Isuzu or original imported engine, paired with a precise HIOS Ⅱ hydraulic system that allows flexible switching of operation modes, balancing power and fuel efficiency. Featuring a reinforced structure, a safe cab, and centralized layout of maintenance components, it suits small-to-medium earthworks, municipal engineering, landscaping and other scenarios, with outstanding cost-effectiveness.
The Komatsu PC450LC-7 is a crawler excavator manufactured from 2006 to 2007. It has a weight of 44.7 tons and a transport length of 17.6 meters, a transport width of 3.5 meters, and a transport height of 3.42 meters. The bucket capacity is 2 cubic meters per minute, and the track width is 600 horsepower. It is equipped with air conditioning and an overload alert system.







