Product Description

Cylinder Photo

Hydraulic cylinder details

Multi-stage telescopic hydraulic cylinders supply a long stroke, it can also afford a big lifting force. Single and double acting multi-stage telescoping hydraulic cylinders for many applications including material handling, waste/recycling compaction, harvesting and others.

Custom-made 4 stages telescopic long stroke hydraulic cylinders, which are produced according to the drawings provided by the customer.

We can meet your special requirements for hydraulic cylinders.The cylinders could be customized from  2 stages to 7 stages.

This type hydraulic cylinder mainly used in the dump vehicles and equipments.


Piston: 45# steel

Tube: 20# steel

Piston rod: chrome plated 45# steel 

Cylinder cap: 20# steel

Cylinder base:   20# steel

Seal ring: famous Chinese brand or international brand

Max.Cylinder Bore: 300mm

Max.Piston Rod Dia.:  280mm

Max.Retract Length: 3500mm

Max .Stroke:Single stage cylinder 6500mm

                Multi-stage cylinder 12000mm

Max.Working Pressure:35Mpa

Min.Working Pressure:10Mpa

Working Pressure of Heavy-duty Cylinder:  40Mpa
We have all the main essential components for hydraulic cylinders with exceptional attention and precision (from metal processing to assembly and painting). The cylinders are built using a large modern park of equipments where performed such processes as: turning, milling and welding. Painting is performed on the modern industrial paint equipment which is in accordance with requirements for protective coating. In production we use raw materials such as tubes, chrome plated bars and sealing components directly from industry leading suppliers.

Telescopic cylinders are also referred to as telescoping cylinders and multi-stage telescopic cylinders.

Multi Stage Hydraulic Cylinder Applictions:dump truck, dumper lorry, tipping truck, tipper

Other cylinders photos
Cylinder Process

Cylinder apply

Company Other Products Photos

About Us 

HangZhou Ruilan is specialized in producing and designing hydraulic Cylinders of all sizes and types,and we costumize welding casting forging parts , agricultural machinery parts, machine attachment and so on, CHINAMFG customize you want! . Ruilan has been serving customers for 15 years.  Ruilan commite  to quality, quick response, professional design, on time delivery, and competitive prices. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Certification: ISO9001
Pressure: High Pressure
Work Temperature: Normal Temperature
Acting Way: Double Acting
Working Method: Straight Trip
Adjusted Form: Regulated Type
US$ 300/Piece
1 Piece(Min.Order)




boom cylinder

What are the safety considerations when using machinery equipped with boom cylinders?

When using machinery equipped with boom cylinders, there are several important safety considerations to keep in mind. Here’s a detailed explanation:

  • Operator Training: Proper operator training is essential to ensure safe operation of machinery equipped with boom cylinders. Operators should receive comprehensive training on the specific equipment they are using, including understanding the functions and controls of the boom cylinder, as well as the associated safety protocols and procedures.
  • Load Capacity and Stability: It is crucial to understand the load capacity and stability limits of the machinery. Exceeding the recommended load capacity can put excessive stress on the boom cylinders, leading to potential failure or instability. Operators should always adhere to the manufacturer’s guidelines regarding load limits and avoid overloading the machinery.
  • Inspections and Maintenance: Regular inspections and maintenance of the boom cylinders are necessary to ensure their safe operation. This includes checking for any signs of wear, leaks, or damage to the cylinders, as well as ensuring proper lubrication and functioning of all components. Any identified issues should be addressed promptly to prevent accidents or equipment failures.
  • Proper Use of Safety Devices: Machinery equipped with boom cylinders may have safety devices such as limit switches, pressure relief valves, or overload protection systems. Operators should be familiar with these safety devices and use them correctly to prevent overextension, overpressure, or other hazardous situations.
  • Proximity Hazards and Safety Zones: Operators and workers in the vicinity of machinery with boom cylinders should be aware of the potential hazards associated with the moving boom. Establishing safety zones and barriers can help prevent accidental contact with the boom, reducing the risk of injury.
  • Hydraulic System Safety: Boom cylinders rely on hydraulic systems to function. It is important to follow proper hydraulic system safety protocols, such as using the correct hydraulic fluid, maintaining appropriate fluid levels, and inspecting hoses and fittings for leaks or damage. Any issues with the hydraulic system should be addressed promptly by qualified personnel.
  • Emergency Stop Procedures: Operators should be familiar with emergency stop procedures and know how to quickly and safely shut down the machinery in case of an emergency or malfunction. Clear communication channels and emergency protocols should be established to ensure a rapid response in critical situations.
  • Personal Protective Equipment (PPE): Operators and workers should wear appropriate personal protective equipment, such as hard hats, safety glasses, high-visibility clothing, and steel-toed boots, when working with machinery equipped with boom cylinders. PPE can help protect against potential hazards and mitigate the risk of injuries.

By considering these safety factors and implementing proper safety measures, the risks associated with operating machinery equipped with boom cylinders can be minimized. It is crucial to prioritize safety at all times and promote a culture of safety awareness among operators and workers involved in the operation of such machinery.

boom cylinder

Can boom cylinders be used in aerial work platforms for boom extension?

Yes, boom cylinders can be used in aerial work platforms for boom extension. Here’s a detailed explanation:

Aerial work platforms, also known as aerial lifts or cherry pickers, are used to provide elevated access for various tasks such as maintenance, construction, and inspection. Boom cylinders play a crucial role in the operation of aerial work platforms by enabling the extension of the boom or arm. Here’s how boom cylinders are used for boom extension in aerial work platforms:

  • Boom Extension: Boom cylinders are responsible for extending and retracting the boom or arm of the aerial work platform. They provide the necessary force and controlled movement to extend the boom to the desired height or reach and retract it when required. The cylinders allow for smooth and precise extension, ensuring safe and efficient access to elevated work areas.
  • Telescopic Boom Design: Many aerial work platforms feature telescopic booms that consist of multiple sections that can be extended or retracted. Boom cylinders are utilized to extend and retract these sections, allowing the platform to reach greater heights or reach out over obstacles. The cylinders facilitate synchronized movement of the boom sections, ensuring stability and control during extension.
  • Operator Control: Boom cylinders in aerial work platforms are controlled by the platform operator. The operator uses hydraulic controls to extend or retract the boom, adjusting the platform’s height or reach as needed. The smooth and responsive movement provided by the cylinders allows precise positioning of the platform, enabling safe and accurate completion of tasks at elevated locations.
  • Stability and Safety: Boom cylinders contribute to the stability and safety of aerial work platforms during boom extension. The cylinders are designed to handle the loads and forces encountered during operation, ensuring that the boom remains stable and secure at various extension lengths. This stability minimizes the risk of tipping or instability, providing a safe working environment for the operators.

The use of boom cylinders in aerial work platforms for boom extension offers several benefits:

  • Enhanced Reach: Boom cylinders enable aerial work platforms to reach greater heights or extend over obstacles, expanding the range of work that can be performed.
  • Flexible Positioning: The controlled movement provided by boom cylinders allows precise positioning of the platform, enabling operators to access specific areas or work at different heights with ease.
  • Safe Operation: Boom cylinders contribute to the stability and safety of aerial work platforms during boom extension, reducing the risk of accidents or instability.
  • Efficient Work: The smooth and controlled extension facilitated by boom cylinders enhances productivity and efficiency in completing tasks at elevated locations.

Overall, boom cylinders are essential components in aerial work platforms for boom extension. They enable the extension and retraction of the boom, provide operator control, ensure stability and safety, and enhance the reach and flexibility of the platform. These features make boom cylinders integral to the safe and efficient operation of aerial work platforms.

It’s important to follow the manufacturer’s guidelines and recommendations regarding the installation, operation, and maintenance of boom cylinders in aerial work platforms to ensure their proper functioning and optimal safety.

boom cylinder

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.

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editor by CX 2024-02-28