What is a backhoe loader and an excavator?

A backhoe loader consists of a front loader and an excavator at the rear. The size of the backhoe loader is smaller than the loader and excavator. And it is usually used for smaller workloads. The backhoe loader is used for shallow digging, creating small and medium channels for piping and moving and transporting soil. The types of backhoes according to operating conditions are as follows:

Types of excavators are used for digging in soft and hard soils, soft stones and non-stone materials. It is used for digging channels for placing pipes and cables of electricity, telephone, water and sewage departments and large ponds and its special type for mines. Excavators can dig all types of soil except rocks. Rocks and rocks must first be destroyed by devices such as rippers or hydraulic hammers, and then removed by shovels.

Excavator is used for digging soil, especially in most of the gravel land, which is dug by other road construction machines except bulldozers. It is not practical, it is used. In addition to digging, the shovel is able to load the resulting materials inside the earth materials transporter. This machine can be used to load all types of materials, including stone, sand, clay, etc. It is also used to dig and angle channels.

Classification of excavators according to the type of chassis they ride on:

✅ chain wheel excavator
✅ rubber wheel excavator

Mechanical excavators are one of the first types of modern road construction machines, which are used in earthworks. Mechanical excavators are mainly used for digging in the soil, loading it with trucks or trolleys or conveyor belts, and its powerful types are capable of digging in all types of soil. Soils are without primary degradation except rocks. In the following, we will introduce the excavator parts.

Excavator components consist of three basic parts:

✅Carriage
✅Rotating chamber part on the carriage
✅Additional part in front of the car

The chassis of excavators is divided into two types:

Chassis provides a stable and reliable chain wheel for the upper rotating chamber and creates a very good mobility in the excavation site, at the same time, due to the wide surface of the wheels, it creates little pressure on the soil, which allows working on 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 in the machine becomes important, instead, such shovels have a low speed.

Rubber wheel chassis have a higher movement speed, so they are more useful for small jobs where the number of zeros is high and the used road surface is firm. It is installed at the back of the truck and it is called a truck; The speed of the first type reaches 50 and the speed of the second type reaches 80 kilometers per hour.

Excavator with inverted cup
This shovel is given several names such as: curved shovel, back-bend shovel, and traction shovel. These shovels are available in two mechanical types. And they are hydraulic and suitable for digging.
Excavator with cable system
This excavator consists of a rotating chamber that is mounted on wheels and is connected to the front end of the shovel. These shovels are mechanical and hydraulic.
Dragline shovel
Dragline shovel is composed of a steering room - crane - bucket and the necessary cables to control different parts. The traction shovel is capable of working at levels much higher and much lower than its support level and is used in a variety of fields. Its long arm is useful for digging and unloading excavated materials, and the short cycle time is one of the advantages of this machine. A crane is usually used to lift heavy objects and move them. By connecting different devices to the end of the long mesh beam of the crane, other uses can be made. There are two types of cranes, mechanical and hydraulic, which are mostly hydraulic today.