news

Contact us

  • Add:NO.2588 Longwu Road,
            Xuhui District, Shanghai
  • Tel:+86-21-34686835 
         Jackie:13916676968 
         Judy:15901623585            
  • Fax:+86-21-34686835
Home>>news>>How Does a Used Hydraulic Excavator Work?

How Does a Used Hydraulic Excavator Work?

Tags: Used Sumitomo Excavators for sale wheeled excavators for sale2013-12-20

A used hydraulic excavator mainly consists of the arm, the engine, the swing as well as the cab.

The Arm
The arm of the used hydraulic is just like the arm of the human being. The movement of human being depends on the wrist as well as the elbow, while for used hydraulic excavator, it have wrist and elbow as well. There are 2 hydraulic cylinders as well as a tank and a stick on the upper part of the arm. In addition, there is a stick inside of the cylinder and a piston at one side of the cylinder to prevent the oil that makes the excavator move from leaking. If the cylinder is empty, the piston will be at the deepest of the cylinder. The piston id responsible for delivering the oil, and the oil is the drive to make the stick inside of the cylinder move to create energy for one of the arm of the used excavator. The valve controls the oil that should be delivered to make movements for the arms. And the valve can be controlled in the cab by the operators.

The Engine
The engine is the energy source of a machine. And the energy that a machine receives is directly from the engine. However, as for used hydraulic excavator, it is necessary to transform the energy of the engine into the hydraulic power. That is the energy source of the used hydraulic excavator.

The Swing
The swing plays a significant role in excavator working. It is because of the swing that the used hydraulic excavator is able to run. The swing including many parts: an outer wheel, an inner wheel, round bearings as well as a gear. When the out wheel is rolling, the gear rolls along the inner wheel, and there is round bearings which function is to make sure that the rolling is stable and successful.

The Cab
The cab is a place where the operator should be at to control the used hydraulic excavator. There are 4 sticks in the cab, two on both sides and two in front of the operator's seat. The operator can control the direction, speed as well as lifting height of the used hydraulic excavator.

And there are two kinds of used wheeled excavators according to the existence of the wheel. The excavator that has wheel can run on solid surface and most of the roads. And the excavator that has not wheel is called the crawler excavator, which is suitable for running on the mud or wet surface. Its large coverage protects this large equipment from sinking.

Other used excavator products, please click in:

Used Excavator Volvo EC 360BLC

Used Excavator Volvo EC 360BLC

Good quality used excavator Volvo EC 360BLC will bring you many benefits. It is a good condition machine wit...

Used Excavator EX100-1

Used Excavator EX100-1

Used Excavator EX100-1 is a type of various qualified excavators sold by us. Since manufactured, it has a hi...

Used Komatsu Excavator PCD155

Used Komatsu Excavator PCD155

Used crawler excavator has been welcomed by most of use owing to its features and various functions. It has ...