Select Page


Hydraulic cylinders play a crucial role in the operation of excavators, enabling them to perform various functions such as digging, lifting, and pushing. In this article, we will explore the functions of hydraulic cylinders in excavators and provide maintenance tips to keep them in optimal working condition.

hydraulic cylinder for Excavator

Functions of Hydraulic Cylinders in Excavators:

Excavators use hydraulic cylinders to provide the force necessary for digging, lifting, and pushing. The hydraulic cylinder is connected to the boom, stick, and bucket, which are the three main components of an excavator. The boom is the long arm that extends from the machine’s body, the stick is the smaller arm that connects the boom to the bucket, and the bucket is the component that does the actual digging.

When the operator activates the hydraulic system, the hydraulic cylinder provides the force necessary for the boom to move up and down, the stick to extend and retract, and the bucket to open and close. This force is generated by the pressure of the hydraulic fluid, which is stored in a reservoir and circulated through the system.

Maintenance Tips:

Proper maintenance of hydraulic cylinders is crucial for their optimal performance and longevity. Here are some tips to keep them in good working condition:

  1. Regularly inspect the hydraulic cylinder for any signs of wear and tear, such as leaks, cracks, or dents.
  2. Keep the cylinder clean and free from debris that could cause damage.
  3. Check the fluid level and quality regularly, and replace it as needed.
  4. Use the correct fluid for the cylinder, as using the wrong type can cause damage.
  5. Follow the manufacturer’s guidelines for maintenance, such as replacing seals and gaskets periodically.
  6. If the cylinder is not operating correctly, seek professional help to avoid further damage.


Hydraulic cylinders are essential components of excavators, enabling them to perform various functions such as digging, lifting, and pushing. Proper maintenance is crucial to ensure the longevity and optimal performance of hydraulic cylinders. By following best practices for maintenance, such as regular inspections and fluid changes, hydraulic cylinders for excavators can provide reliable and efficient service for many years.