According to the working quality and power of the excavator, the excavator can be divided into three types: light excavator, medium excavator and heavy excavator.

1. Light excavator: Small excavator generally weighs between 3-5 tons. It is suitable for urban areas, roads, gardens, small farmland, demolition sites and other working places. Due to the small size, the operation is flexible and convenient, and the operator is easy to get started.

2. Medium excavator: the weight is about 5-15 tons. Applicable to construction sites, urban water conservancy, traffic roadbed, quarry, platform, wharf and so on. Medium-sized excavators have a more complex structure, so they need to be more careful when used to ensure the safety of the operator.

3. Heavy excavator: Heavy excavator weight of more than 15 tons. It is mainly used in super large construction sites such as reservoir DAMS, railways, highways, ports and ships. Due to its large size, it limits the possibility of operation in narrow venues.

Second, different sizes of excavator application scenarios

1. Light excavator: suitable for urban areas, roads, gardens, small farmland, demolition sites and other working places. As a small equipment, the lightweight excavator can work in the narrow construction site, and the transportation is convenient, and it is easier to access the construction site in the urban area.

2. Medium excavator: suitable for construction sites, urban water conservancy, traffic roadbed, quarry, platform, wharf and so on. Medium excavator has a strong working capacity, is one of the preferred equipment for a variety of operations, such as steel bar operations, production and transportation operations, earth and stone excavation, deep foundation pit construction, bucket excavator operations.

3. Heavy excavator: suitable for reservoir dam, railway, road, port ship and other super large construction site. Heavy excavator is huge, can complete heavy earthmoving and excavation operations, widely used in large engineering projects, such as levees, DAMS, highways, high-speed railways and other fields of work.

In short, the different size of the excavator has its own characteristics and application scenarios, according to the work needs to choose the appropriate excavator can improve the work efficiency and construction quality.