The crawler bulldozer was developed by the American Benjamin Holt in 1904. It was formed in front of a crawler tractor to install a manpower lifting device. The driving force was a steam engine, and then a crawler type bulldozer driven by a natural gas drive and a gasoline engine was developed successively, and the earth shovel was also made by people. The lifting of the force is developed to the hoisting of the wire rope.
History Of Bulldozer Development
- Jun 29, 2018-