The Development Of Excavators In The 20th Century
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 of liquid mechanical and electrical integration technology of automatic hydraulic excavator gradual development process
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.