Excavator classification

Common excavators include internal combustion engine-driven excavators and electric-driven excavators according to their driving modes. Among them, electric excavators are mainly used in plateau anoxia, underground mines and other flammable and explosive places.
According to different sizes, excavators can be divided into large excavators, medium excavators and small excavators.
According to different walking methods, excavators can be divided into crawler excavators and wheeled excavators.
According to different transmission methods, excavators can be divided into hydraulic excavators and mechanical excavators. Mechanical excavators are mainly used in some large mines.
According to the purpose, excavators can be divided into different categories such as general excavators, mining excavators, marine excavators, and special excavators.
According to the bucket, excavators can be divided into front shovel excavators, backhoe excavators, dragline excavators and grab shovel excavators. Front shovel excavators are mostly used to excavate materials above the ground surface, while backhoe excavators are mostly used to excavate materials below the ground surface.
1. backhoe excavator
The backhoe type is the most common we have seen, moving backwards and downwards, forcing the soil to be cut. It can be used for excavation below the shutdown working surface. The basic operation methods include: trench end excavation, trench side excavation, straight line excavation, curve excavation, excavation at a certain angle, ultra-deep trench excavation, trench slope excavation, etc.
2. Front shovel excavator
The shoveling action pattern of a front shovel excavator. Its characteristic is "moving forward and upward, forcing the soil to be cut". The front shovel has a strong digging force and can excavate soil above the stopping surface. It is suitable for excavating dry foundation pits with a height greater than 2m, but up and down ramps must be provided. The bucket of a front shovel is larger than that of a backhoe of the same size. It can excavate Class I to Class III soil with a moisture content of no more than 27%, and can be used in conjunction with a dump truck to complete the entire excavation and transportation operation. It can also excavate Large dry foundation pits and mounds, etc. The excavation method of the front shovel excavator depends on the relative position of the excavation route and the transport vehicle. There are two ways of excavation and unloading: forward excavation and side unloading; forward excavation and reverse unloading. Unload soil to the direction.
3. dragline excavator
A dragline excavator is also called a dragline excavator. Its digging characteristics are: "backward and downward, cutting the soil under its own weight." It is suitable for excavation of Class I and II soil below the stopping surface. When working, the bucket is thrown out by inertial force, digging farther, with a larger digging radius and digging depth, but it is not as flexible and accurate as a backhoe. It is especially suitable for excavation of large and deep foundation pits or underwater excavation.