What is Mini Excavators Hydraulic Cylinders?

What is Mini Excavators Hydraulic Cylinders?

Excavators are mainly composed of cylinders booms, bucket dippers and cabs. Among which, the hydraulic cylinder is the actuator that provides power. 


Typical cylinders found in Mini Excavators.

There are different types of cylinders on Mini excavators, each with its own specific function.

  1. Bucket cylinder: These cylinders are used to provide power for the movement of the bucket, which is located on the end of the bucket arm. Bucket cylinders are typically smaller than boom cylinders and are used to move the bucket and to control its angle during excavation.

  2.  Boom cylinder: These cylinders are used to provide power for the up and down movement of the main boom. The boom cylinder is usually larger and more powerful, and can generate a large amount of skin weight to move the boom during operation.

  3. Stick cylinder: The stick arm cylinder, also known as the dipper it is used to power the movement of the arm which carries the bucket.

  4. Swing cylinder: The rotary cylinder, is a hydraulic cylinder used in excavators to offset the upper part of the boom around the vertical axis. This allows the operator to change direction, which is crucial for manipulating the machine in narrow spaces or excavating in different directions.

  5. Dozer cylinder: A dozer cylinder, also known as a blade cylinder, is used on mini excavator to lift and lower the dozer blade. The dozer blade is used to push or move materials, such as dirt, sand and helps in assisting the stability of the excavator.

  6. Variable width cylinder: This cylinder is installed in the chassis system and is used to move in and out of the track. On mini excavators, this helps improve stability and enables the excavator to travel in narrow gaps of over 900 millimeters.  

The working principle of excavating hydraulic system is mainly based on several basic principles: hydrostatics, fluid dynamics and fluid force. These principles realize the motion control of various parts of the machine through the flow of oil and the transmission of power.

Provide driving force

It needs varieties of movements such as moving, rotating and tilting, when the excavator is working. The driving force of these movements is provided by the cylinder.


Control the amount of excavator power
A variety of bore and stroke size could provide different working pressure. The excavator can choose the right cylinder according to the needs to achieve the required force.

Control the motion direction 
The hydraulic cylinder can work in one way or two. The motion direction can be controlled through the hydraulic cylinder. Then the excavator works efficiently.

Carry load
The excavator needs to withstand a large number of conforms in the work, and the cylinder is one of the important components of the load.

Hydraulic cylinder plays a very important role in the industrial sector. Hydraulic cylinder is a device that uses fluid as the working medium for energy transfer.

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