Crawler bulldozer 

A bulldozer is an engineering vehicle. There is a large metal bulldozer in front, the bulldozer is put down during use, the mud, sand and stones are shoveled forward and pushed. The position and angle of the dozer can be adjusted. The excavation, earth moving and unloading can be done separately. Soil work.

The bulldozer has the characteristics of flexible operation, convenient rotation, small working face and fast driving speed. It is mainly suitable for shallow excavation of one to three types of soil, such as site cleaning or leveling, foundation pits with little excavation depth and backfilling, pushing subgrades with low height, etc.