China best Dat 63-182-132 CZPT Double Acting Telescopic Hydraulic Cylinder for Dump Trucks vacuum pump ac system

Product Description

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

 ·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  

 ·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,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 a 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 


Why choose us?

Roca team considers all your concerns 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.


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


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

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 factory.
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Certification: RoHS, CE, ISO9001
Pressure: High Pressure
Work Temperature: High Temperature


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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.

telescopic cylinder

Can telescopic cylinders be repaired or maintained when necessary?

Yes, telescopic cylinders can be repaired and maintained when necessary. Here’s a detailed explanation:


Telescopic cylinders are designed with repairability in mind. The modular construction of telescopic cylinders allows for individual components or stages to be replaced or repaired as needed. If a specific part of the cylinder becomes damaged or worn out, it can be disassembled and repaired or replaced, minimizing downtime and cost compared to replacing the entire cylinder.


Maintenance is essential to ensure the optimal performance and longevity of telescopic cylinders. Regular maintenance practices may include:

  • Inspection: Periodic visual inspections to check for any signs of damage, wear, or leakage.
  • Lubrication: Applying lubricants to the moving parts of the cylinder to reduce friction and extend component life.
  • Cleaning: Removing dirt, debris, and contaminants that may affect the cylinder’s operation.
  • Seal replacement: Replacing worn or damaged seals to maintain proper sealing and prevent fluid leakage.
  • Pressure testing: Conducting pressure tests to ensure the cylinder’s integrity and identify any potential issues.
  • Alignment and adjustment: Verifying proper alignment and making necessary adjustments to ensure smooth operation and prevent excessive wear.

Depending on the specific application and operating conditions, maintenance intervals and procedures may vary. It’s important to follow the manufacturer’s maintenance recommendations and guidelines for the telescopic cylinder to ensure effective maintenance practices.

Professional expertise:

Repairing and maintaining telescopic cylinders often require professional expertise. It is recommended to engage qualified technicians or service personnel with experience in hydraulic systems and telescopic cylinder repairs. They have the knowledge and tools necessary to accurately diagnose issues, perform repairs, and conduct maintenance tasks in a safe and efficient manner.

Manufacturer support:

Manufacturers of telescopic cylinders typically provide support for repair and maintenance. They may offer technical documentation, repair manuals, and access to replacement parts to facilitate the repair process. Consulting the manufacturer’s resources and seeking their assistance can ensure that repairs and maintenance are carried out correctly and in accordance with the cylinder’s specifications.

By implementing proper repair and maintenance practices, telescopic cylinders can be kept in good working condition, extending their service life and maintaining reliable performance.

It’s important to note that repair and maintenance should be performed by qualified individuals and comply with relevant safety guidelines and industry standards.

telescopic cylinder

How do telescopic cylinders handle variations in hydraulic pressure and flow rate?

Telescopic cylinders are designed to handle variations in hydraulic pressure and flow rate effectively. Here’s a detailed explanation:

Hydraulic pressure control:

Telescopic cylinders are equipped with hydraulic systems that allow for precise control of hydraulic pressure. The hydraulic pressure is regulated by a pump that supplies pressurized hydraulic fluid to the cylinder. The pressure can be adjusted according to the specific requirements of the application.

Pressure relief valves:

To handle variations in hydraulic pressure, telescopic cylinders often incorporate pressure relief valves. These valves are designed to limit the maximum pressure within the cylinder to prevent damage or failure. When the pressure exceeds the set limit, the relief valve opens, allowing excess fluid to bypass and relieve the pressure. This ensures the safety and integrity of the telescopic cylinder and the hydraulic system.

Flow control:

Telescopic cylinders also handle variations in flow rate through the hydraulic control system. The flow rate of hydraulic fluid into and out of the cylinder determines the speed of extension and retraction. Flow control valves, such as flow restrictors or flow control valves, are commonly employed to regulate the flow rate.

Flow restrictors:

Flow restrictors are used to limit the flow rate of hydraulic fluid entering or leaving the telescopic cylinder. By restricting the flow, the speed of extension or retraction can be controlled. This allows for precise and gradual movement, preventing abrupt or uncontrolled motion.

Flow control valves:

Flow control valves are designed to provide adjustable flow rates by regulating the opening or closing of hydraulic passages. These valves allow operators to control the speed of extension and retraction of the telescopic cylinder. By adjusting the flow control valves, variations in flow rate can be accommodated to suit specific operational requirements.

Sequencing valves:

In some applications, telescopic cylinders may require a specific sequence of extension and retraction. Sequencing valves are used to control the order in which different stages of the telescopic cylinder extend or retract. These valves ensure proper synchronization of the cylinder stages and prevent uneven or unbalanced movement.

Overall, telescopic cylinders employ various hydraulic components and control mechanisms to handle variations in hydraulic pressure and flow rate. Pressure relief valves protect against excessive pressure, flow restrictors and flow control valves regulate the flow rate, and sequencing valves ensure proper sequencing of cylinder stages. These features allow telescopic cylinders to operate safely, precisely, and efficiently under different hydraulic conditions.

It’s important to consult the manufacturer’s documentation and guidelines for specific information on the hydraulic system and control mechanisms of telescopic cylinders, as well as recommended maintenance and safety practices.

telescopic cylinder

How does a telescopic cylinder handle variations in extension and retraction?

A telescopic cylinder is designed to handle variations in extension and retraction through its inherent structure and hydraulic system. Here’s a detailed explanation:

Handling variations in extension:

When extending a telescopic cylinder, each stage or sleeve extends successively, one inside the other, to achieve the desired stroke length. This nested structure allows for incremental extension, providing flexibility in adapting to different extension requirements. The hydraulic system supplies pressurized fluid to each stage’s piston, generating the necessary force for extension. The internal flow paths in the cylinder ensure synchronized movement of the stages, allowing for controlled and precise extension.

Handling variations in retraction:

During retraction, the telescopic cylinder stages retract in the reverse order of extension. The hydraulic system controls the flow of fluid to each stage, allowing for controlled retraction. The nested structure of the cylinder ensures that each stage retracts smoothly inside the preceding stage. The hydraulic pressure and flow are regulated to prevent rapid or uncontrolled retraction, ensuring safe and stable operation.

Compensating for variations:

Telescopic cylinders are designed to compensate for variations in extension and retraction through their hydraulic control systems. The hydraulic system can be adjusted to vary the flow rate, pressure, or force applied to each stage, allowing for fine-tuning and accommodating different extension and retraction requirements. Additionally, the locking mechanisms incorporated in telescopic cylinders help maintain the extended position securely, compensating for external forces or variations in loads.

Overall, the nested structure, hydraulic system, and locking mechanisms of telescopic cylinders provide the necessary flexibility and control to handle variations in extension and retraction. This enables the cylinders to adapt to different operating conditions, loads, and stroke length requirements in various applications.

It’s important to follow the manufacturer’s guidelines and recommendations for proper operation, maintenance, and adjustment of telescopic cylinders to ensure their reliable and safe performance.

China best Dat 63-182-132 CZPT Double Acting Telescopic Hydraulic Cylinder for Dump Trucks   vacuum pump ac system	China best Dat 63-182-132 CZPT Double Acting Telescopic Hydraulic Cylinder for Dump Trucks   vacuum pump ac system
editor by CX 2024-04-15