Product Description

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Hydraulic Stick Cylinder

A stick cylinder, a dipper or arm cylinder, is a hydraulic cylinder used in excavators and other construction equipment. It is specifically designed to control the movement of the stick or dipper arm, which is the part of the excavator that extends and retracts to adjust the reach and CHINAMFG depth.The stick cylinder works with other hydraulic cylinders, such as the boom and bucket cylinders, to enable precise and controlled excavating operations. 
Specification of Stick Cylinder
Bore diameter: 210mm~360mm
Rod diameter: 145mm~260mm
Stroke≤2600mm
Maximum 3560.8KN
Pressure35MPa

Here are some key points about the application and function of a stick cylinder:

  1. Stick Arm Movement: The stick cylinder is responsible for extending and retracting the stick arm of an excavator. The stick arm is attached to the boom and extends outward to increase the reach and CHINAMFG depth of the machine. By extending or retracting the stick cylinder, the operator can adjust the length of the stick arm according to the excavation requirements.

  2. Hydraulic Power: The stick cylinder operates using hydraulic power supplied by the excavator's hydraulic system. Pressurized hydraulic fluid, typically oil, is directed to the cylinder, creating a force extending or retracting the piston rod. The operator controls the hydraulic pressure through control valves, allowing for precise movement and positioning of the stick arm.

  3. Digging and Material Handling: The stick cylinder is crucial in excavating tasks. By extending the stick arm, the cylinder allows the excavator bucket to reach deeper into the ground, enabling efficient digging, trenching, and material loading operations. The stick arm's length can be adjusted to match specific job requirements, ensuring optimal CHINAMFG performance.

  4. Versatility: The stick cylinder enhances the excavator's versatility by enabling the machine to adapt to different excavation conditions. By extending the stick arm, the excavator can reach over obstacles, dig in hard-to-reach areas, or perform tasks that require extended reach, such as slope grading or deep foundation excavations.

  5. Control and Safety: Like other hydraulic cylinders in the excavator, the stick cylinder offers precise control over the stick arm's movement. This control allows operators to position the bucket and control the excavation process accurately. Additionally, the hydraulic system and cylinder design incorporate safety features to prevent sudden movements or unexpected cylinder failures, ensuring the operator's and surrounding personnel's safety.

What are some everyday tasks that require using the stick cylinder in excavators?

The stick cylinder in excavators is used for various tasks that require precise control over the extension and retraction of the stick arm. Some common duties where the stick cylinder is essential include:

1. CHINAMFG Trenches: When excavating trenches, the stick cylinder allows the operator to extend the stick arm to the desired depth. This enables efficient trenching for utility installation, pipeline laying, or any application that requires excavating long and narrow channels.

2. Loading and Unloading: The stick cylinder is utilized when loading materials CHINAMFG trucks or unloading them from containers or stockpiles. By extending the stick arm, the excavator can reach higher or farther to load or unload materials accurately and efficiently.

3. Excavating Foundations: When preparing construction sites, the stick cylinder is crucial for excavating foundations. It allows the operator to extend the stick arm to reach the desired depth and accurately remove soil or debris, ensuring a stable and level foundation for construction projects.

4. Slope Grading: The stick cylinder is used for slope grading tasks, where the excavator is employed to shape and level slopes for road construction, landscaping, or erosion control. By extending or retracting the stick arm, the operator can adjust the reach and angle of the bucket, enabling precise grading operations.

5. CHINAMFG Obstacles: In specific scenarios, the excavator must reach over obstacles such as walls, barriers, or structures. The stick cylinder allows the operator to extend the arm, providing the necessary reach to access areas obstructed by obstacles.

6. Deep Excavations: The stick cylinder extends the stick arm to the required depth for deep excavations, such as building basements or underground structures. This allows for efficient excavation at significant depths while maintaining stability and control.

7. Material Sorting and Handling: The stick cylinder is employed in material sorting and handling tasks, where the excavator separates and moves different types of materials. By extending or retracting the stick arm, the excavator can position the bucket accurately to pick up, sort, or place materials in designated areas.

These are just a few examples of the tasks that require using the stick cylinder in excavators. The stick cylinder's ability to control the extension and retraction of the stick arm provides operators with the versatility and precision necessary to perform a wide range of excavation and material handling operations efficiently.

Our Company

We have a first-class independent R&D platform for assembly. The forklift cylinder production workshop has 4 semi-automatic lifting cylinder assembly lines and 1 fully automatic tilting cylinder assembly line, with a designed annual production capacity of 1 million pieces; the special cylinder workshop is equipped with semi-automatic cleaning and assembly systems of various specifications, with a designed annual production capacity of 200,000 essays. It has famous CNC machining equipment, machining centers, special equipment for high-precision cylinder processing, robot welding machines, automatic cleaning machines, automatic cylinder assembly machines, and automatic paint production lines. We have more than 300 sets of critical equipment running. The optimized allocation and efficient utilization of equipment resources ensure the precision requirements of the products and meet the high standard quality requirements of the products.

   Forklift cylinder assembly shop

 Other types of cylinder assembly shop

Welding

Painting & coating

     Painting & coating line

  Fully automatic water-based

Testing

To further improve product performance, and establish the leadership position of our hydraulic cylinder in the industry, our company and zjimee jointly established a Comprehensive performance laboratory of hydraulic cylinders, hydraulic valves, and hydraulic pumps; the lab is computer-assisted testing, using electro-hydraulic control technology, the test conditions preset by computer, which improves the test accuracy and system versatility, and the experimental data.
The automatic collection is realized through the application of sensors, and the output data, such as the internal leakage and load efficiency of the cylinder or the valve, are directly processed by the computer and converted to standard units (ml/min; %). At the same time, to ensure the working safety of the hydraulic system, the state monitoring function is carried out for key performance parameters, such as "oil temperature monitoring, liquid level monitoring, filter device monitoring," etc. Among them, the hydraulic cylinder test stand can test the performance of "load efficiency" and "internal leakage" by readings. At the same time, it is equipped with a grating ruler measuring instrument, which meets the requirements of all test items of hydraulic cylinder products in the national standard.

Our Factory

Packaging & Shipping

Certification: GS, RoHS, CE, ISO9001
Pressure: High Pressure
Work Temperature: Normal Temperature
Acting Way: Double Acting
Working Method: Rotary
Adjusted Form: Regulated Type

forklift hydraulic cylinder

How Does a Forklift Hydraulic Cylinder Handle Variations in Temperature?

A forklift hydraulic cylinder is designed to handle variations in temperature effectively to ensure reliable and consistent performance. The hydraulic system, including the cylinder, is engineered to withstand both high and low temperatures commonly encountered in different operating environments. Here's a detailed explanation of how a forklift hydraulic cylinder handles variations in temperature:

  1. Temperature-Resistant Seals:
  2. Hydraulic cylinders in forklifts are equipped with seals that are specifically designed to withstand temperature fluctuations. These seals are made from high-quality materials such as synthetic rubber or thermoplastic elastomers that have excellent resistance to heat and cold. The temperature-resistant seals ensure proper sealing and prevent leakage of hydraulic fluid, even when exposed to extreme temperature conditions.

  3. Hydraulic Fluid Selection:
  4. The choice of hydraulic fluid plays a crucial role in temperature management within the hydraulic system, including the cylinder. Different types of hydraulic fluids are available, each with specific temperature ranges for optimal performance. Forklift manufacturers typically recommend hydraulic fluids that are suitable for the expected operating temperatures. These fluids have properties that enable them to maintain consistent viscosity and lubrication characteristics, ensuring smooth cylinder operation across a wide temperature range.

  5. Thermal Expansion Compensation:
  6. Variations in temperature cause materials to expand or contract. Hydraulic cylinders are designed to accommodate the thermal expansion of components effectively. The materials used in the cylinder construction, such as steel or aluminum alloys, have specific coefficients of thermal expansion. By considering these properties during the design and manufacturing process, forklift hydraulic cylinders are built to compensate for thermal expansion, minimizing the risk of structural damage or performance issues due to temperature changes.

  7. Heat Dissipation and Cooling:
  8. In high-temperature environments, forklift hydraulic cylinders may be exposed to heat generated by the hydraulic system or external sources. To prevent overheating, cylinders are often equipped with cooling mechanisms. These mechanisms can include cooling fins or external cooling systems that help dissipate heat and maintain the cylinder within the desired temperature range. Effective heat dissipation ensures that the hydraulic fluid retains its optimal properties and that the cylinder operates efficiently and reliably.

  9. Cold Start Considerations:
  10. In low-temperature conditions, such as during cold starts, hydraulic cylinders may experience increased viscosity of the hydraulic fluid, which can affect their performance. To mitigate this issue, forklift hydraulic systems are designed with features such as preheating systems or low-temperature hydraulic fluids. These measures help to warm up the hydraulic fluid and ensure its proper flow and lubrication, allowing the hydraulic cylinder to operate smoothly even in cold environments.

  11. Insulation and Protective Measures:
  12. In extreme temperature conditions, additional insulation or protective measures may be applied to the hydraulic cylinder and its components. Insulation materials can help maintain stable operating temperatures within the cylinder, preventing heat loss in cold environments or minimizing heat absorption in hot environments. Protective coatings or covers may also be used to shield the cylinder from external temperature fluctuations or exposure to harsh elements, ensuring its longevity and performance.

By incorporating temperature-resistant seals, selecting suitable hydraulic fluids, compensating for thermal expansion, implementing heat dissipation mechanisms, considering cold start conditions, and applying insulation or protective measures, forklift hydraulic cylinders are designed to handle variations in temperature effectively. These design considerations ensure the reliable and consistent operation of the hydraulic system, enabling forklifts to perform optimally in diverse temperature environments.

forklift hydraulic cylinder \

Can hydraulic cylinders be used in order fulfillment centers?

Yes, hydraulic cylinders can be used in order fulfillment centers. Order fulfillment centers require efficient and precise material handling equipment to handle the storage and movement of goods. Hydraulic cylinders are commonly used in various applications within these centers. Here's an explanation of how they can be utilized:

Hydraulic cylinders find applications in order fulfillment centers in the following ways:

1. Conveyor Systems:

Conveyor systems are extensively used in order fulfillment centers for the transportation of goods. Hydraulic cylinders are employed to control the movement and positioning of conveyor belts. These cylinders enable smooth and precise adjustments of the conveyor height, ensuring efficient transfer of items between different processing areas.

2. Lift Tables and Platforms:

Hydraulic cylinders are utilized in lift tables and platforms used for order picking and loading/unloading operations. These cylinders provide controlled lifting and lowering of the tables or platforms, allowing operators to adjust the working height as needed. This enables ergonomic working conditions and precise alignment with shelving or loading docks.

3. Scissor Lifts:

Scissor lifts are commonly used in order fulfillment centers to reach elevated areas for order picking or stock replenishment. Hydraulic cylinders power the vertical movement of scissor lifts, providing stability and controlled elevation. The cylinders allow for precise positioning at different heights, enhancing efficiency and safety during the order fulfillment process.

4. Pallet Handling Equipment:

Order fulfillment centers often utilize pallet handling equipment, such as pallet jacks and pallet positioners, to move and stack palletized goods. Hydraulic cylinders are integral components of these machines, enabling the lifting and lowering of pallets. The cylinders provide the necessary force and control to handle heavy loads and ensure accurate placement of pallets.

5. Automated Guided Vehicles (AGVs):

AGVs are autonomous vehicles utilized in order fulfillment centers to transport goods within the facility. Hydraulic cylinders are employed in the lifting mechanisms of AGVs, allowing them to pick up and drop off loads at designated locations. The cylinders enable precise vertical movement and positioning of the load, ensuring accurate and efficient material handling.

In summary, hydraulic cylinders have various applications in order fulfillment centers, including conveyor systems, lift tables and platforms, scissor lifts, pallet handling equipment, and AGVs. These cylinders contribute to efficient and precise material handling, enhancing productivity and streamlining the order fulfillment process.

forklift hydraulic cylinder

Can You Explain the Role of Hydraulic Fluid in a Forklift Cylinder?

The role of hydraulic fluid in a forklift cylinder is crucial for the proper operation and functionality of the hydraulic system. Hydraulic fluid, also known as hydraulic oil, serves multiple important functions within the forklift cylinder. Here's an explanation of its role:

  1. Transmission of Power:
  2. Hydraulic fluid is responsible for transmitting power within the forklift cylinder. The hydraulic system in a forklift uses fluid under pressure to generate force and perform various tasks. When the forklift operator activates the controls, hydraulic fluid is pressurized by the hydraulic pump and directed towards the forklift cylinder. The pressurized fluid then applies force on the piston inside the cylinder, allowing the forklift to lift heavy loads.

  3. Lubrication:
  4. Another important role of hydraulic fluid is to provide lubrication within the forklift cylinder. As the piston moves within the cylinder, there is friction between the piston seal and the cylinder wall. Hydraulic fluid acts as a lubricant, reducing friction and preventing excessive wear and tear. The lubricating properties of the hydraulic fluid ensure smooth movement of the piston and other internal components, enhancing the longevity and efficiency of the forklift cylinder.

  5. Heat Transfer:
  6. Hydraulic systems generate heat due to the mechanical and fluid friction occurring during operation. The hydraulic fluid in the forklift cylinder plays a crucial role in heat transfer. It absorbs heat generated within the cylinder and carries it away from the components, helping to maintain the optimal operating temperature. Effective heat transfer prevents overheating and ensures the hydraulic system functions reliably. Some hydraulic fluids are specifically formulated with heat-resistant properties to handle high-temperature applications.

  7. Sealing and Contamination Prevention:
  8. Hydraulic fluid helps maintain a proper seal within the forklift cylinder. The fluid fills the small gaps between the piston and cylinder wall, preventing leakage of pressurized fluid. It also helps to keep out contaminants, such as dirt, dust, and moisture, which can cause damage to the internal components. Hydraulic fluids often contain additives that provide sealing properties and protect against corrosion, maintaining the integrity of the hydraulic system.

  9. Pressure Regulation:
  10. Hydraulic fluid plays a role in pressure regulation within the forklift cylinder. The hydraulic pump pressurizes the fluid, and this pressure is transmitted to the cylinder to generate the required force for lifting loads. The properties of the hydraulic fluid, such as viscosity and compressibility, influence the pressure characteristics within the system. Proper selection of hydraulic fluid ensures the desired pressure levels are maintained, allowing the forklift to operate safely and efficiently.

  11. Contaminant Suspension:
  12. Hydraulic fluid acts as a medium for suspending and carrying away contaminants that may enter the forklift cylinder. It traps particles and debris, preventing them from settling on critical hydraulic components. This helps to maintain the cleanliness of the hydraulic system and reduces the risk of damage or clogging. Regular maintenance, including fluid filtration and replacement, is essential to ensure the hydraulic fluid effectively suspends contaminants and maintains system cleanliness.

In summary, hydraulic fluid plays a vital role in a forklift cylinder. It transmits power, provides lubrication, facilitates heat transfer, helps maintain seals, regulates pressure, and suspends contaminants. By performing these functions, hydraulic fluid ensures the smooth and efficient operation of the forklift hydraulic system, contributing to the lifting and handling of heavy loads with precision and reliability.

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editor by CX 2023-11-17