The Development History of Crawler Bulldozers

The Crawler Bulldozer was successfully developed by the Americans in 1904. It was formed by installing a manpower-lifting bulldozing device in front of the crawler tractor. At that time, the power was a steam engine. Later, it was successfully developed to be driven by natural gas power and gasoline engine. Crawler-type bulldozers and bulldozer blades have also evolved from manual lifting to wire rope lifting.

Crawler Bulldozer

With the continuous advancement of technology, the power of bulldozers has all adopted diesel engines, and the bulldozer blades and ripper have all been lifted by hydraulic cylinders. In addition to crawler-type bulldozers, bulldozers also have tire-type bulldozers, which appeared about ten years later than crawler-type bulldozers. Because crawler-type bulldozers have better adhesion performance and can exert greater traction, so at home and abroad, the variety and quantity of its products far exceed tire-type bulldozers.

The production of Bulldozers in China only started after the founding of New China. At first, a bulldozing device was installed on agricultural tractors. With the development of the national economy, the large-scale mining, water conservancy, power station and transportation departments have continuously increased the demand for medium and large crawler bulldozers. Although my country's medium and large crawler bulldozer manufacturing industry has developed greatly, it can no longer meet the needs of national economic development. need. For this reason, since 1979, my country has introduced crawler-type bulldozer production technology, process specifications, technical standards and material systems from Japan.

From the 1960s to the present, the domestic Bulldozer Industry production companies have been stable at around four, because the processing requirements of bulldozer products are high, difficult, and mass production requires a large investment, so ordinary companies dare not easily get involved. However, with the development of the market, starting from the "Eighth Five-Year Plan" period, some large and medium-sized domestic enterprises began to engage in bulldozers based on their own strengths and expanded the bulldozer industry team.