Small excavators are also called small excavating machines, and their definitions are also different. For example, in countries where excavator loaders are popular , small excavators of 1-3 tons are the mainstream. In countries where backhoe loaders are not widely used, 4-6 ton products are preferred. However, almost all countries tend to purchase larger equipment. From this, we can draw a conclusion that small excavators are defined as 1-6-ton excavator loaders, among which 2.7-3.0 ton products account for a large proportion. The reason is that they can easily use general transport vehicles for land transfer. The small excavator benefits from its compact posture, and it is mainly an ideal equipment for earthwork application in urban areas.