Developing Excavators Abroad
First appeared manual excavator has been 130 years of history, has experienced during the semi-rotary excavator to the electric drive and driven by a steam internal-combustion engine driven rotary, excavator, application technology of mechanical and electrical integration of liquid gradually developing process of automatic hydraulic excavator .
Earlier excavator production of industrial developed countries, France, Germany, the United States, Russia, Japan and other is 3.5-40 m3 single bucket hydraulic excavator bucket capacity of main producers, beginning in the 1980 s excavator production oversize. For example, the excavator for stripping with the bucket capacity of 50-150 m3 produced by the American company Marion, and the walking shovel with the bucket capacity of 132 m3. B-e (busi lusi yili) is the largest excavator in the world, with a bucket capacity of 168.2 m3 and a bucket capacity of 107 m3.
Since the late 20th century, the production of excavators in the world has developed towards the direction of large-scale, miniaturized, multi-functional, special-purpose and automation.