Mechanical excavators are among the first modern construction machines used in earthworks. Excavators are mainly used for excavating in the soil and loading it with trucks or trolleys or conveyor belts. Its high-power types are capable of excavating in all types of soil except rocks without primary destruction.

The basic part is composed of: Chariot - the part of the revolving chamber on the chariot and the additional part in front of the car. Rubber wheel chassis
A stable and reliable chain wheel chassis for the upper rotating chamber and creates a very good mobility in the earth removal site. Meanwhile, due to the wide surface of the wheels, it creates little pressure on the soil, which allows working on It provides loose soils in cases where more friction is needed depending on the type of soil and there is a slippery problem, the role of the chain becomes important in the machine, instead, such shovels have low speed.

Wheel chassis Rubber has a higher movement speed, so they are more useful for small jobs where the number of trips is high and the used road surface is firm. This type of chassis is of two types: the self-moving type that is driven from the steering room and the other type that is installed in the back of the truck and is called a truck; The speed of the first type reaches 50 and the second type reaches 80 kilometers per hour.

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