Hitachi excavators are part of Hitachi, Japan, and with the efforts of its joint venture subsidiary (Hitachi Construction Machinery Group), Hitachi has developed and produced a number of first-class construction machines based on its extensive experience and advanced technology. . Hitachi Construction Machinery, with its nearly 100 years of machinery manufacturing experience and strong technological development capabilities, has produced a series of hydraulic excavators of various models ranging from 0.5 to 800 tons.
Doosan excavator is the main product of Doosan Group in Korea, it is an earth moving machine that uses bucket to excavate materials above or below the surface of the bearing machine and loads them into the transportation vehicle or unloads them into the stockpile.Doosan excavators have two major product lines: the DH series and the DX series. The materials excavated by excavators are mainly soil, coal, silt, and pre-loosened soil and rock.