China supplier SD74dB-4-171 CZPT Type Double Acting Telescopic Hydraulic Cylinder for Trucks vacuum pump ac system

Product Description

Parker Telescopic Hydraulic Dump Truck/Trailer Cylinder/Roll-Off hoist

Features                        
 ·Parker Seal Division-"Zero-leak"Sealing Package                    
 ·100,000 Yield Induction Hardened Chrome Plated Rod as Standard                                      
 ·Skived and Burnished Tubing                                    
 ·Hardened Pin-eye Bushings                                  
 ·Parker"Zero-leak" Internal Bypass Piston Design                                        
 ·Greater Rod Support  

Benefits                  
 ·Leak Free Extended Life                              
 ·More Resilient to External Damage                        
 ·Consistant Quality                            
 ·Extends Cylinder Life as Cylinder Wears                            
 ·More Efficient/Less Heat                                
 ·Resiste rod Deflection and Side Loading  
 

Part Description 
Application Dump truck,Tipping,Trailer,Underbody,Roll-off Hoist
Material of cylinder tube  45 steel,27SiMn,Carbon steel,Alloy steel and general seamless steel
Seal Hallite,SKF,NOK,Guarnitec,Parker,and other equivalent brands
Coating Hard Chrome 0.03-0.05mm
Temperature _30°C to +100°C
Working Pressure 16Mpa-20Mpa
Stroke  2755mm-8530mm
Color as Customer's Requirement
Mounting type Earring-trunnion,double trunnion,double earring(eye end)
Plunger 20#,45# steel with high frequency quenching
Certification ISO/TS 16949,ISO9001,ABS,API,SGS
Package Shrink film,pallet,plywood case
Warranty  12 months
Delivery time 25-30 days after down payment 
SKU#  

 


Why choose us?

Roca team takes all your concerns into consideration to suit your hydraulic cylinder requirements. We work out the best design solution for your application.

Hydraulic cylinders are the most effective and efficient method of pushing, pulling, lifting, and lowering.

 

Nowadays hydraulic cylinders play an essential role in daily application and industry:
√ Mining
√ Earthmoving & Construction
√ Agriculture &Forestry
√Waste Management & Material Handing
√Ship crane & offshore

 

Selecting the right cylinders for an application is critical in obtaining maximum performance and reliability.

 

ROCA team considers all your concerns to suit your hydraulic cylinder requirements.

 

Together, we work out the best design solution for your application.

FAQ 
Q1.Do you have MOQ?
      Depending on different ideas, Can be negotiated. The larger the quantity is, the competitive the unit price will be.
Q2.Should the customer pay the delivery fee, How much is it?
       For the delivery fee, many samples are being requested to be sent, so we must get the delivery fee.
       If you tell me to use the appointed Express, you will give me your express account or you will pay according to the Express.
       If you do not request, I will choose a cheap one in China.
Q3.How about the after sale service?
      1) We will always keep the quality the same as the buyer's samples and if there is something with the quality, we will make compensation for our customers.
      2) We will suggest our packing and take charge in our packing, we will keep the goods safe in the delivery.
      3) We will trace the goods from the production to selling, we will solve the problems in the selling for our customers.
Q4.When can I get a price?
      We usually quote within 24 hours after we get your inquiry.
Q5: Are you a trade company or manufacturer?
      We are a professional manufacturer with our own factory.
 

Certification: RoHS, CE, ISO9001
Pressure: High Pressure
Work Temperature: High Temperature
Acting Way: Single Acting
Working Method: Rotary
Adjusted Form: Regulated Type
Customization:
Available

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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 articulated forklifts?

Yes, hydraulic cylinders can be used in articulated forklifts. Articulated forklifts, also known as flexi forklifts or narrow aisle forklifts, are designed with a unique articulating mast that allows for increased maneuverability in tight spaces. Hydraulic cylinders play a vital role in the operation of these forklifts. Here's an explanation of their use:

Articulated forklifts utilize hydraulic cylinders in several key areas:

1. Mast Articulation:

The primary function of hydraulic cylinders in articulated forklifts is to facilitate the articulation of the mast. The mast is divided into two sections connected by a hydraulic cylinder. This cylinder enables the mast to pivot or bend at a joint, providing the forklift with the ability to articulate and operate in narrow aisles or confined spaces. By extending or retracting the hydraulic cylinder, the operator can articulate the mast to navigate through tight turns and reach pallets from various angles.

2. Lift and Tilt Functions:

Hydraulic cylinders are also used to control the lift and tilt functions of the forks in articulated forklifts. These cylinders allow for smooth and precise lifting and tilting of the forks to pick up, transport, and deposit loads. By adjusting the extension or retraction of the hydraulic cylinders, the operator can control the height and angle of the forks, ensuring efficient and safe load handling.

3. Side Shift:

Some articulated forklifts are equipped with hydraulic cylinders for side shifting capabilities. These cylinders enable the forks to move laterally, allowing for precise positioning of the load. By activating the hydraulic system, the cylinders extend or retract, shifting the forks to the desired position. This feature is particularly useful when aligning the forks with pallets or when working with varying load sizes.

4. Stabilization:

Hydraulic cylinders also contribute to the stability of articulated forklifts. They work in conjunction with the forklift's frame and counterweight to ensure proper weight distribution and balance. By adjusting the extension or retraction of the hydraulic cylinders, the forklift can maintain stability during lifting and maneuvering operations.

In summary, hydraulic cylinders are integral components of articulated forklifts, enabling mast articulation, controlling lift and tilt functions, providing side shift capabilities, and contributing to overall stability. These cylinders play a crucial role in enhancing the maneuverability and efficiency of articulated forklifts, allowing them to operate effectively in narrow aisles and confined spaces.

forklift hydraulic cylinder

How Does a Forklift Hydraulic Cylinder Handle Variations in Load Weight?

A forklift hydraulic cylinder is designed to handle variations in load weight by utilizing the principles of hydraulic pressure and force. The hydraulic system of a forklift, including the hydraulic cylinder, employs a closed-loop system that allows for efficient and precise handling of different load weights. Here's how a forklift hydraulic cylinder handles variations in load weight:

  1. Hydraulic Pressure:
  2. The hydraulic cylinder in a forklift operates based on the principle of hydraulic pressure. The forklift's hydraulic system includes a hydraulic pump that pressurizes the hydraulic fluid, typically hydraulic oil. When the forklift operator activates the controls to lift a load, the pressurized hydraulic fluid is directed to the hydraulic cylinder. The high-pressure fluid exerts force on the piston inside the cylinder, creating an upward force that lifts the load.

  3. Force Balance:
  4. The hydraulic cylinder is designed to maintain a force balance between the load weight and the hydraulic pressure. As the load weight increases, the hydraulic system compensates by adjusting the hydraulic pressure accordingly. The hydraulic pump supplies more pressurized fluid to the cylinder, allowing the cylinder to generate the required force to lift the heavier load. This force balance ensures that the forklift can handle variations in load weight effectively.

  5. Load Sensing Valves:
  6. Modern forklifts often incorporate load sensing valves in their hydraulic systems to further optimize load handling. Load sensing valves continuously monitor the load weight and adjust the hydraulic pressure accordingly. These valves sense the force exerted on the hydraulic cylinder and regulate the pressure to match the load weight. When a heavier load is detected, the load sensing valve signals the hydraulic pump to increase the pressure, ensuring the necessary force is applied to lift the load safely and efficiently.

  7. Controlled Lowering:
  8. In addition to handling variations in load weight when lifting, forklift hydraulic cylinders also ensure controlled and safe lowering of the load. The hydraulic system uses various control valves and mechanisms to regulate the flow of hydraulic fluid during lowering. This allows for precise and gradual lowering of the load, regardless of its weight. The operator can control the descent speed using the forklift's controls, ensuring smooth and safe handling of the load during the lowering process.

  9. Stability and Balance:
  10. While the hydraulic cylinder plays a crucial role in handling variations in load weight, maintaining stability and balance is equally important. Forklifts are designed with a stable base and a counterweight at the rear to provide balance and prevent tipping. The hydraulic system, including the cylinder, works in conjunction with the forklift's overall design to maintain stability and ensure safe operation, especially when dealing with uneven or shifting loads.

In summary, a forklift hydraulic cylinder handles variations in load weight by utilizing hydraulic pressure, force balance, load sensing valves, and controlled lowering mechanisms. These components and systems work together to ensure that the hydraulic cylinder can lift and lower loads of different weights safely and efficiently. The ability to adapt to varying load weights is essential for the versatility and effectiveness of forklifts in various material handling applications.

China supplier SD74dB-4-171 CZPT Type Double Acting Telescopic Hydraulic Cylinder for Trucks   vacuum pump ac system	China supplier SD74dB-4-171 CZPT Type Double Acting Telescopic Hydraulic Cylinder for Trucks   vacuum pump ac system
editor by CX 2023-11-22