How Does The Excavator Machinery Technology Develop

The first hydraulic excavator was successfully invented by the
French Poclain factory. As for the hydraulic technology, an
overhead excavator emerged in the 1940s with a tractor
equipped with hydraulic backhoe. In 1951,the first hydraulic
backhoe excavator was launched by Poclain ( Poclain ) factory
in France, resulting in a new space created in the field of
excavator technology development.
In the early 1950s and mid the humans have developed a towed full
rotating hydraulic excavators and crawler hydraulic excavator.
Initial tried hydraulic excavator was made by the use of the
hydraulic technology of aircraft and machine tools, hydraulic
components of which were lacked for a variety of working
conditions for excavator, and the manufacturing quality is not
stable enough, parts are neither complete.
From the 1960s on, the hydraulic excavator boomed into the
promotion and development stage, the excavator manufacturers
and varieties of countries increased rapidly with the production
soared. Among the years from 1968 to 1970, the production of
hydraulic excavator accounted for 83% of total production, and
was close to 100%.
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http://www.komatsu.co.nz