Loader is a kind of earthwork construction machinery widely used in highway, railway, construction, hydro-power, port, mine and other construction projects. It is mainly used for shoveling bulk materials such as soil, sand, lime, coal, etc. It can also be used for slight shoveling and excavation of ores, hard soil, etc. Different auxiliary working devices can also be used for bulldozing, lifting and loading and unloading of other materials such as wood. In road construction, especially in high-grade highway construction, loaders are used for filling and excavation of roadbed engineering, aggregate and loading of asphalt mixtures and cement concrete yards. In addition, it can also carry out the operations of pushing soil, scraping the ground and pulling other machines. Because loader has the advantages of fast operation, high efficiency, good mobility and easy operation, it has become one of the main types of earthwork construction in engineering construction.
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