An excavator, also known as excavating machinery or a digger, is a type of earthmoving machinery that uses a bucket to excavate materials above or below the machine's bearing surface and load them into transport vehicles or unload them at a stockpile.
The materials excavated by excavators are mainly soil, coal, silt, and pre-loosened soil and rock. In recent years, the development of construction machinery has been relatively rapid, and excavators have become one of the most important types of construction machinery. The three most important parameters of an excavator are: operating weight (mass), engine power, and bucket capacity.
