Small Excavator Boom Cylinder
The boom cylinder of a small excavator is a key component that controls the rise and fall of the boom. The lifting capacity of boom cylinder directly affects the working efficiency and digging depth of excavator. In structure, the boom cylinder is also composed of cylinder, piston, piston rod and other parts. When the hydraulic oil enters the boom cylinder, the piston is pushed up to make the boom rise. Conversely, when the hydraulic oil flows out, the piston drops, and the boom drops with it. The precise control of the boom cylinder ensures the stability and efficiency of the excavator during operation.
Specifications of the Excavator Boom Cylinder
Boom Cylinder | |
Application: | Control the lifting motion of the boom arm |
Specification: | Bore diameter: 50mm-125mm Rod diameter: 25mm-75mm Stroke:≤1000mm |
Thrust force: | Maximum 361KN (Bore diameter: 125mm/pressure 29.4MPa) |
An excavator boom cylinder is a crucial hydraulic component that enables the lifting and lowering of the excavator's boom. This cylinder plays a vital role in the excavator's primary function of digging.
The boom cylinder is a cylindrical tube housing a piston. The piston connects to the excavator's boom, and when hydraulic fluid is pumped into the cylinder, the piston moves, causing the boom to rise. Releasing the hydraulic fluid allows the piston to retract and the boom to lower.
Typically constructed from high-strength steel, boom cylinders are built to endure the significant forces exerted during lifting and lowering operations. They also feature seals to prevent hydraulic fluid leaks.

Functions of the Small Excavator Boom Cylinder
1. Boom Extension and Retraction
The primary function of the small excavator boom cylinder is to extend and retract the boom arm. This capability enables the excavator to reach various depths and distances, essential for tasks like digging trenches, excavating foundations, or loading materials.
2. Precision Control
The boom cylinder allows for precise control of the boom arm, enabling operators to maneuver heavy loads easily. This precision is critical for maintaining safety and efficiency on construction sites.
3. Enhanced Productivity
With the aid of the boom cylinder, small excavator operators can complete tasks swiftly and efficiently. Its robust design and hydraulic capabilities ensure effective execution of heavy-duty operations.
Benefits of Using High-Quality Excavator Boom Cylinders
1. Durability and Longevity
Choosing a high-quality excavator boom cylinder guarantees durability and longevity. Exceptional materials and craftsmanship contribute to a longer lifespan, minimizing downtime and maintenance expenses.
2. Improved Efficiency
A well-working boom cylinder enhances the overall efficiency of the excavator, lowering fuel consumption and reducing wear on other components.
3. Operator Comfort and Safety
The smooth, precise control provided by a reliable boom cylinder improves operator comfort and safety, leading to better working conditions and reduced accident risks.
Excavator Hydraulic Cylinders Manufacturer: Ever-power Group
Ever-power Group is a leading manufacturer specializing in high-quality hydraulic cylinders for excavators, including the Small Excavator Boom Cylinder. Our dedication to excellence ensures that each product meets stringent quality standards, backed by advanced manufacturing capabilities and state-of-the-art technology. We take pride in our extensive experience and expertise in the hydraulic industry, providing reliable and durable solutions for various applications.
In Australia, GBC Company acts as the official sales agent for Ever-power Group, offering our exceptional excavator hydraulic cylinders to local clients. Beyond our standard hydraulic cylinders, we also provide customized solutions tailored to specific customer requirements. We are capable of producing non-standard cylinders within the specifications of a cylinder diameter of D360MM and a stroke length of L6000MM. We invite our valued clients to reach out with their designs or samples for custom orders, ensuring we meet your unique needs effectively.
Additional information
Edited by | Sylvia |
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The boom cylinder of a small excavator is a key component that controls the rise and fall of the boom. The lifting capacity of boom cylinder directly affects the working efficiency and digging depth of excavator. In structure, the boom cylinder is also composed of cylinder, piston, piston rod and other parts. When the hydraulic oil enters the boom cylinder, the piston is pushed up to make the boom rise. Conversely, when the hydraulic oil flows out, the piston drops, and the boom drops with it. The precise control of the boom cylinder ensures the stability and efficiency of the excavator during operation.
Excavator Boom Cylinder Reviews
Ethan Brooks, Fleet Mechanic
I’ve been monitoring these cylinders for six weeks. They’re holding up under 10-hour shifts moving gravel. The seals are tight—no oil seepage yet—and the stroke length matches our specs. They’re not perfect, but they get the job done. Lubrication points are easy to access, which helps.