Product Description
Excavator Long Reach Boom And Arm
(1)Product:
(2)Working Dimension:
| Excavator tonnage | T | 20-25t | 30-36T | 40-47T | ||||||
| Total length | mm | 15200 | 18000 | 18000 | 20000 | 22000 | 20000 | 22000 | 24000 | |
| Max CHINAMFG radius | mm | 15000 | 17300 | 17300 | 19200 | 21000 | 19200 | 21000 | 23000 | |
| Max cut depth | mm | 10300 | 12500 | 12600 | 14500 | 16000 | 14500 | 16000 | 17000 | |
| Max cut depth vertically | mm | 9500 | 11600 | 11700 | 13600 | 15200 | 13600 | 15200 | 16200 | |
| Max cut height | mm | 12600 | 15300 | 15300 | 17300 | 18500 | 16200 | 17500 | 18750 | |
| Max unloading height | mm | 10300 | 13000 | 13000 | 15000 | 16000 | 14000 | 15000 | 16000 | |
| Min rotate radius | mm | 4750 | 5100 | 5100 | 6200 | 6200 | 6200 | 7750 | 7750 | |
| Boom length | mm | 9100 | 10500 | 10500 | 11500 | 12500 | 11500 | 12500 | 13350 | |
| Stick length | mm | 6100 | 7500 | 7500 | 8500 | 9500 | 8500 | 9500 | 10650 | |
| Stick max cut force(ISO) | KN | 83 | 65 | 118 | 95 | 80 | 170 | 139 | 109 | |
| Bucket max cut force(ISO) | KN | 150 | 99 | 153 | 153 | 153 | 153 | 153 | 153 | |
| Bucket capacity | m3 | 0.5 | 0.4 | 1.2 | 0.7 | 0.5 | 1 | 0.8 | 0.7 | |
| Bucket rotate degree | deg | 170 | 170 | 170 | 170 | 170 | 170 | 170 | 170 | |
| Folding length | mm | 13000 | 14500 | 15000 | 16000 | 17000 | 16000 | 17000 | 18000 | |
| Folding heigtht | mm | 3050 | 3100 | 3300 | 3350 | 3400 | 3450 | 3480 | 3500 | |
| Extra Counter weight | T | 1 | 3.5 | 4 | 5 | 6 | 5 | 6 | 8 | |
(3)Features:
1.Material
- )The material used in the excavator long arm is Q355B
- )If other steel is required, please contact us, Q690D customized service
2.Material processing
Use a plasma cutter to ensure part flatness
3.Internal vie
Spaced by vertical and horizontal reinforcement plate at regular interval
4.Product making
Welding
A.) Welded with mixed gas between argon and carbon dioxide. Argon content:80%.Carbon dioxide content:20%.
B.) Welded by auto-welding machine .
Sandblasting
A.) The surface of the workpiece can obtain a certain degree of cleanliness and different roughness, so that the mechanical properties of the workpiece surface are improved, thus improving the fatigue resistance of the workpiece, increasing the adhesion between it and the coating, and prolonging the coating film. Durability, also good for paint leveling and decoration.
5.Product packaging and Shipping
6.Company Services
1, Long reach boom are use for dredging rivers port construction, railway construction and groundwork construction, with high extensive operation scope, high efficiency and high security.
2, Our company was founded in 2008 with more than 10 years of experience, production line engineers have more than 10 years of data and experience for all brands of excavators designed and customized long range booms.
3, Applicable for all the excavator model,OEM service is also available.
4, Advanced manufacturing process, Technique is in the line with global standards.
5, We have all the installation dimensions of most excavator, we can customize this long reach boom for your excavator.
6, Before welding, we have use big edge milling machine mill(taper process) the edge of the sheet. So the welding can go to the internal of the steel-sheet and make the structure have higher performance. Also the inside have strength plate make it more stronger.
7, If necessary, extra pipeline can be added to suit to some extra application.
8, Stick cylinder of the long boom, can use your original stick cylinder to save the cost, if you need the stick cylinder, we also can prepare for you.
9, Some parts can be consolidated using thicker plate or overlapping another plate for heavy-duty application.
10, Welding is protective-gas welding, the protective gas is 80% Argon and 20% CO2 mixed. This is CHINAMFG standard for protective gas.
11, Before welding, we have use big edge milling machine mill the edge of the sheet. So the welding can go to the internal of the steel-sheet and make the structure have higher performance.
12 .We can customize the arm for all kinds of excavator as per your request. Just let me know your request.
13. If you need, some parts can be consolidated using thicker plate or overlapping another plate for heavy-duty application, just let me know.
14. Not make the bucket for this extender arm as customer request. But if you need us prepare the bucket for you, that’s ok.
| MODEL | LDB120 | LDB200-1 | LDB200-2 | LDB300 | LDB350-1 | LDB350-2 | LDB450 |
| boom length(mm) | 7100 | 8220 | 10000 | 10000 | 11000 | 12000 | 13000 |
| arm length ( mm) | 5900 | 7160 | 8000 | 8000 | 9000 | 10000 | 11000 |
| Weight(kg) | 3000 | 4000 | 4200 | 5200 | 6000 | 6500 | 7000 |
| Max dig depth(mm) | 9000 | 11340 | 12200 | 12200 | 14500 | 16100 | 18000 |
| Max. extensive scope(mm) | 12500 | 15100 | 17600 | 17600 | 19600 | 21600 | 23600 |
| Max. dig height(mm) | 11300 | 12510 | 13500 | 13720 | 14920 | 16100 | 17300 |
| folding height(mm) | 2900 | 2980 | 3040 | 3210 | 3210 | 3400 | 3400 |
| bucket capacity(m3) | 0.3 | 0.5 | 0.4 | 0.4 | 0.5 | 0.6 | 0.6 |
| Suit Excavator tonnage(ton) | 12 | 20 | 20 | 30 | 35 | 35 | 45 |
| Warranty: | 180 Day |
|---|---|
| Application: | Excavator |
| Certification: | ISO9001: 2015 |
| Customization: | Available |
|
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| Shipping Cost: Estimated freight per unit. | about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
| Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|

What are the advantages of using boom cylinders in heavy equipment?
Using boom cylinders in heavy equipment offers several advantages. Here’s a detailed explanation:
Boom cylinders play a critical role in the movement and control of booms, arms, or attachments in heavy equipment, such as excavators, cranes, loaders, and bulldozers. The advantages of using boom cylinders include:
- Powerful and Precise Movement: Boom cylinders provide powerful hydraulic force that enables heavy equipment to lift, extend, retract, and rotate booms or arms. This allows for precise movement and positioning of attachments, enhancing productivity and efficiency in various applications, including digging, lifting, loading, and material handling.
- Versatility and Adaptability: Boom cylinders are available in various sizes, configurations, and specifications, making them adaptable to different types of heavy equipment and applications. They can be customized to meet specific requirements, such as adjusting the force, stroke length, or mounting options, allowing for versatile use in diverse industries, including construction, mining, forestry, and agriculture.
- Load Handling Capacity: Boom cylinders are designed to handle heavy loads and withstand the rigorous demands of heavy equipment operations. They have high load-bearing capacities and can exert significant force, enabling the equipment to lift and move substantial weights. This capability is essential for tasks that involve lifting and manipulating heavy materials or objects.
- Precise Control and Maneuverability: Boom cylinders provide precise control over the movement of booms or attachments, allowing operators to perform tasks with accuracy and finesse. The hydraulic system enables smooth and controlled operation, enabling operators to maneuver equipment in tight spaces, navigate obstacles, and perform intricate tasks with ease.
- Durability and Longevity: Boom cylinders are built to withstand the harsh operating conditions encountered in heavy equipment applications. They are constructed using high-strength materials and undergo rigorous testing to ensure durability and longevity. Proper maintenance and regular inspections can further extend the lifespan of boom cylinders, reducing the need for frequent replacements.
- Enhanced Safety: Boom cylinders contribute to safety in heavy equipment operations. They enable operators to have precise control over the movement of booms or attachments, reducing the risk of accidents or damage to surrounding structures. Boom cylinders can also be equipped with safety features such as limit switches or pressure relief valves to prevent overextension or overpressure situations.
The advantages of using boom cylinders make them indispensable in heavy equipment applications. They significantly enhance the performance, productivity, and safety of machinery, allowing operators to accomplish a wide range of tasks efficiently in various industries.

How does a boom cylinder handle variations in cylinder mounting and orientation?
A boom cylinder is designed to handle variations in cylinder mounting and orientation. Here’s a detailed explanation:
In different applications, such as construction equipment, material handling machinery, or hydraulic systems, boom cylinders may need to accommodate variations in cylinder mounting and orientation. The design and features of a boom cylinder allow it to adapt to these variations and function effectively. Here’s how a boom cylinder handles variations in cylinder mounting and orientation:
- Flexible Mounting Options: Boom cylinders are designed with flexible mounting options to accommodate different equipment configurations. They can be mounted in various orientations, such as vertically, horizontally, or at an angle, depending on the specific requirements of the application. The cylinder’s mounting flexibility allows for easy integration into different systems and ensures proper alignment and connection between the boom and the equipment.
- Articulating Capability: Boom cylinders often have articulating capability, which enables them to handle variations in cylinder orientation. The cylinder may have multiple pivot points or joints, allowing it to articulate and adjust its angle or position relative to the boom or equipment. This articulation capability ensures that the cylinder can adapt to different mounting angles and orientations, providing optimal performance and load control.
- Rotational Movement: Some boom cylinders are designed to handle rotational movement. They can rotate or swivel around their mounting points, allowing them to accommodate variations in cylinder orientation. This rotational movement ensures that the cylinder can align with the desired direction of force or movement, regardless of the mounting angle or orientation.
- Flexible Hydraulic Connections: Boom cylinders have flexible hydraulic connections to accommodate variations in cylinder mounting and orientation. The hydraulic hoses or fittings are designed to be adjustable or swivel, allowing for easy connection to the hydraulic system of the equipment. This flexibility ensures that the hydraulic fluid can flow smoothly and reach the cylinder, regardless of its mounting position or orientation.
The ability of a boom cylinder to handle variations in cylinder mounting and orientation offers several benefits:
- Versatility: Boom cylinders can be used in a wide range of equipment configurations and applications, providing versatility and adaptability.
- Optimal Performance: The flexibility in mounting and orientation allows boom cylinders to achieve optimal performance and load control in different working conditions.
- Easy Integration: The flexible mounting options and hydraulic connections simplify the integration of boom cylinders into various systems, reducing installation time and effort.
- Improved Efficiency: Boom cylinders that can handle variations in mounting and orientation contribute to efficient operation, as they can be adjusted to suit specific requirements and constraints.
Overall, a boom cylinder is designed to handle variations in cylinder mounting and orientation. It offers flexible mounting options, articulating capability, rotational movement, and adaptable hydraulic connections. These features enable the cylinder to accommodate different equipment configurations, orientations, and working conditions, ensuring optimal performance and load handling.
It’s important to consult the manufacturer’s guidelines and specifications for the boom cylinder to ensure proper installation, alignment, and operation in accordance with the specific equipment and application requirements.

Can you explain the role of hydraulic fluid in a boom cylinder?
Hydraulic fluid plays a crucial role in the operation of a boom cylinder in heavy machinery. Here’s a detailed explanation of its role:
- Transmission of Power: Hydraulic fluid is the medium through which power is transmitted in a boom cylinder. When hydraulic fluid is supplied under pressure to one side of the cylinder, it exerts force on the piston, causing it to move. This movement is then transferred to the boom, enabling its extension, retraction, lifting, or lowering. The ability of hydraulic fluid to transmit power efficiently allows for smooth and controlled operation of the boom cylinder.
- Force Generation: Hydraulic fluid is responsible for generating the force required to move the boom. The pressure applied to the hydraulic fluid creates a force that acts on the piston, creating a pushing or pulling action. This force is then transmitted to the boom through the piston and rod, allowing for the desired movement. The force generated by the hydraulic fluid depends on the pressure applied and the effective area of the piston.
- Control of Movement: Hydraulic fluid enables precise control of the boom cylinder’s movement. By regulating the flow and pressure of the hydraulic fluid, operators can control the speed, direction, and extent of the boom’s extension, retraction, lifting, or lowering. This control allows for accurate positioning of the boom, precise load handling, and safe operation of the heavy machinery.
- Heat Dissipation: Hydraulic fluid also plays a role in dissipating heat generated during the operation of the boom cylinder. As hydraulic fluid flows through the system, it absorbs heat from the hydraulic components and transfers it to the reservoir or other heat dissipation mechanisms. Adequate heat dissipation prevents the hydraulic fluid from overheating, which could lead to a loss of performance or damage to the components.
- Lubrication and Seal Protection: Hydraulic fluid provides lubrication to the moving components within the boom cylinder, such as the piston, rod, and seals. This lubrication minimizes friction and wear, ensuring smooth and efficient operation of the cylinder. Additionally, hydraulic fluid helps protect the seals from drying out or being damaged by contaminants, maintaining the integrity of the cylinder and preventing fluid leakage.
- System Stability and Safety: The proper selection and maintenance of hydraulic fluid contribute to the stability and safety of the boom cylinder system. Using the recommended hydraulic fluid with the appropriate viscosity and additives ensures optimal performance and protects the system from wear, corrosion, and fluid breakdown. Regular monitoring and maintenance of the hydraulic fluid help identify potential issues, such as contamination or degradation, and prevent system failures or malfunctions.
In summary, hydraulic fluid plays a vital role in a boom cylinder by transmitting power, generating force, controlling movement, dissipating heat, providing lubrication and seal protection, and contributing to system stability and safety. Its properties and effective utilization are essential for the efficient and reliable operation of the boom cylinder in heavy machinery.


editor by CX 2023-10-12