China OEM Extended Length Hydraulic Gas Spring Cylinders for Office Chairs vacuum pump engine

Product Description


These gas springs are used for the office chairs and various other systems where step less height adjustment is required. These gas springs bring comfort to the occupant who is carring out various activities while sitting for long periods.


1) ease of height adjustment with touch of a knob, to suit the mood of the occupant and to achieve the operational height conformity for comfort better productivity.

2) slight cushioning effect in the block condition, resist or reduces the pressure on the back while sitting or occupying the chair for a long period.

3) easy installation.

4)this gas springs facilitates ergonomic characteristic in seating system.

Areas of application

1) swivel chairs for smooth height adjustment.

2) industrial chairs and stools for ergonomic sitting in the industry.

3) dental stools and ophthalmic chairs.

4) work tables.

5) beauty parlor chairs

Product Description



Model C S L V X Y F1±1KG
MX-40mm 40D 210 250 135 60 10 500
MX-65mm 65D 215 280 160 60 10 480/550
MX-85mm 85D 235 320 175 60 10 400
MX-100mm 100D 250 360 185 60 10 400
MX-120mm 120D 270 390 195 60 10 400
MX-140mm 140D 290 430 225 60 10 380
MX-160mm 160D 330 510 285 60 10 380
MX-200mm 200D 360 560 295 60 10 380
MX-260mm 260D 440 700 365 60 10 380


Company Profile



Production Workshop



Packaging & Shipping






1.Q: What is our factory product range?
A:1)Office chair parts.Such as office chair castor wheel,shaft collar,gas spring for cabinet,office chair gas spring.
2.Q: How to order?

 A:Please send us your purchase order by Email or Fax.

 1) Product information:Quantitiy,Specification(size , color, logo and packing requirement),

 2) Delivery time required.

 3) Shipping information:Company name,Address,Phone number,Destination seaport/airport.

 4) Forwarder’s contact details if there is any in China.

 3.Q: How long and how to get sample from us ?

 A:1) If you need some sample to text,we can make as per your request,please provide us PDF or AI for  Making.

   2) Lead time for making sample:about 7 days

   3) The transportation freight of samples: the freight depends on the weight and packing size and your area.

 4.Q: What is the payment terms for sample cost and order amount?
 A:For sample, we accept the payment sent by West Union,Paypal, for orders, we can accept T/T or L/C at sight.

 5.Q: What is the whole process for doing business with us ?

 A:1) First,please provide details of the products you need we quote for you.

   2) If price is acceptable and client need sample,we provide samples for your reference.

   3) If client approve sample and require for bulk production for order,we will provide Proforma Invoice      for client,and we will arrange to produce at once when we get 30% deposit.

  4) We will send photos of all goods,packing,details,and B/L copy for client after goods are finished.We    will arrange shipment and provide original B/L when the client pay the balance.

 6.Q: Can the logo or company name to be printed on the products or package?

 A:Sure.Your logo or company name can be printed on your products by stamping, printing,embossing,die cast, coating or sticker.

 7.Q: What advantages we have?

 A:Rich experience: We have more than 10 years experience in this industry.

 That means,we can preview the problems for the orders and products.

 Therefore,it will make sure to reduce the risk of bad situation to happen.

 Point to point service: There is 1 sale who will serve you from inquiry to products shipped out.During  the process,you just need to discuss with her for all problems and the way saves much time.

 Free design: If you are not ready for the designs,the professional designers will be able to help you with it freely.

 Strict QC: For each order,strict inspection will be carried out by the QC department before shipping.The bad quality will be avoid within door.


Function: Pressed
Material: Stainless Steel
Usage: Industrial, Furniture
Load Type: Compression
Production Process: Hot Roll
Shape: Cylinder
US$ 30/Piece
1 Piece(Min.Order)




hydraulic cylinder

Can hydraulic cylinders be adapted for specialized applications like material handling?

Yes, hydraulic cylinders can be effectively adapted for specialized applications such as material handling. The versatility, power, and precise control offered by hydraulic cylinders make them well-suited for a wide range of material handling tasks. Hydraulic systems, including cylinders, are commonly used in industrial settings to lift, position, push, pull, and manipulate various types of materials. Here’s a detailed explanation of how hydraulic cylinders can be adapted for specialized material handling applications:

1. Lifting and Lowering:

– Hydraulic cylinders are commonly used for lifting and lowering heavy loads in material handling applications. By utilizing the force generated by hydraulic pressure, cylinders can provide the necessary power to lift and hold loads at different elevations. The precise control offered by hydraulic systems allows for accurate positioning of materials, ensuring efficient and safe lifting operations.

2. Pushing and Pulling:

– Hydraulic cylinders are capable of generating substantial pushing and pulling forces, making them ideal for applications that involve moving or manipulating materials. They can be used to push or pull heavy objects, control the movement of conveyors or rollers, or engage mechanisms for material transfer. The ability to exert high forces with precise control enables hydraulic cylinders to efficiently handle a variety of material handling tasks.

3. Tilting and Rotating:

– Hydraulic cylinders can be adapted to provide tilting and rotating functions in material handling equipment. By integrating cylinders into the design, equipment such as forklifts, cranes, or material handling arms can tilt or rotate to facilitate material placement or maneuvering. Hydraulic cylinders offer the required force and control to achieve smooth and controlled tilting or rotating motions, enhancing operational efficiency in material handling processes.

4. Gripping and Clamping:

– Hydraulic cylinders can be utilized to provide gripping and clamping functions for secure material handling. By incorporating specialized gripping or clamping mechanisms with hydraulic actuation, materials of various shapes and sizes can be securely held or clamped during transportation or processing. Hydraulic cylinders enable precise and adjustable gripping or clamping forces, ensuring the safe and reliable handling of materials.

5. Material Compaction and Forming:

– Hydraulic cylinders can be adapted for material compaction and forming applications. For example, in the production of bricks, hydraulic cylinders are used to apply high pressure and force to compact the raw materials into desired shapes. Similarly, in metal forming processes, hydraulic cylinders are employed to exert force on metal sheets or components, enabling precise shaping and forming operations.

6. Conveyor and Sorting Systems:

– Hydraulic cylinders can be integrated into conveyor and sorting systems to facilitate material movement and sorting. By incorporating hydraulic actuators, conveyor belts or sorting mechanisms can be efficiently controlled for optimal material flow and distribution. Hydraulic cylinders provide the necessary force and control to handle varying load capacities and adjust the speed and position of material transfer, improving the overall efficiency of handling and sorting operations.

7. Customized Designs:

– Hydraulic cylinders can be customized and adapted to meet specific requirements of specialized material handling applications. Engineers can design cylinders with unique dimensions, stroke lengths, mounting options, and sealing arrangements to fit into equipment or systems with specific space limitations or operating conditions. Customized hydraulic cylinders ensure optimal performance and compatibility for specialized material handling tasks.

In summary, hydraulic cylinders can be effectively adapted for specialized material handling applications, offering the necessary force, control, and versatility required in various material handling tasks. Whether it involves lifting and lowering, pushing and pulling, tilting and rotating, gripping and clamping, material compaction and forming, or integration into conveyor and sorting systems, hydraulic cylinders provide reliable and efficient solutions. Their adaptability, precise control, and ability to handle heavy loads make hydraulic cylinders a valuable component in optimizing material handling processes across different industries.

hydraulic cylinder

Ensuring Controlled and Safe Force Application in Heavy Machinery with Hydraulic Cylinders

Hydraulic cylinders play a critical role in heavy machinery by ensuring controlled and safe force application. The ability to exert and control high forces is essential for heavy machinery operations, such as lifting, pressing, pushing, or pulling heavy loads. Let’s explore how hydraulic cylinders ensure controlled and safe force application in heavy machinery:

  1. Force Control: Hydraulic cylinders provide precise force control capabilities. The hydraulic system’s pressure can be adjusted to regulate the force exerted by the cylinder. This control allows operators to apply the necessary force for a specific task while ensuring it remains within safe limits. By accurately controlling the force, hydraulic cylinders help prevent excessive force that could damage the machinery or compromise the safety of the operation.
  2. Load Balancing: In heavy machinery, multiple hydraulic cylinders are often used in conjunction to distribute and balance the applied force. By using multiple cylinders, the load can be evenly distributed across the machinery, minimizing stress concentrations and ensuring controlled force application. This load balancing approach enhances the stability and safety of the machinery, preventing uneven loading that could lead to structural issues or instability.
  3. Safety Valves: Hydraulic systems in heavy machinery are equipped with safety valves to protect against excessive force or overloading. Safety valves are designed to release hydraulic fluid from the cylinder when the force exceeds a predetermined threshold. This prevents the force from reaching dangerous levels, safeguarding the machinery and preventing potential accidents or damage. Safety valves provide an additional layer of safety and ensure controlled force application even in unexpected circumstances.
  4. Pressure Relief Systems: Hydraulic cylinders incorporate pressure relief systems to further enhance safety. These systems are designed to relieve excess pressure in the hydraulic system, which could occur due to factors such as thermal expansion or system malfunctions. By relieving excess pressure, the pressure relief systems prevent sudden and uncontrolled force surges, maintaining safe and controlled force application in heavy machinery.
  5. Structural Integrity: Hydraulic cylinders are designed to withstand the high forces and loads associated with heavy machinery applications. The cylinders are constructed using robust materials, such as high-strength steel, and undergo rigorous testing to ensure their structural integrity. This ensures that the cylinders can safely handle the forces applied during heavy machinery operations without experiencing failures or deformations that could compromise the safety and controlled force application.

In summary, hydraulic cylinders ensure controlled and safe force application in heavy machinery through force control, load balancing, safety valves, pressure relief systems, and robust structural design. These features and design considerations enable operators to exert the necessary force while maintaining safety and preventing excessive loads or force surges. By incorporating hydraulic cylinders into heavy machinery, manufacturers can achieve controlled force application, enhance operational safety, and protect the machinery from damage or failure.

hydraulic cylinder

What are the common signs of wear or leakage that indicate hydraulic cylinder issues?

Hydraulic cylinders are critical components in hydraulic systems, and wear or leakage can lead to performance issues and potential system failures. It is important to be aware of the common signs that indicate hydraulic cylinder problems. Here’s a detailed explanation of the common signs of wear or leakage that indicate hydraulic cylinder issues:

1. Fluid Leakage:

– Fluid leakage is one of the most obvious signs of hydraulic cylinder problems. If you notice hydraulic fluid leaking from the cylinder, it indicates a seal failure or damage to the cylinder. Leaking fluid may be visible around the rod, piston, or cylinder body. It is important to address fluid leakage promptly as it can lead to a loss of system efficiency, contamination of the surrounding environment, and potential damage to other system components.

2. Reduced Performance:

– Wear or internal damage to the hydraulic cylinder can result in reduced performance. You may notice a decrease in the cylinder’s force output, slower operation, or difficulty in extending or retracting the cylinder. Reduced performance can be indicative of worn seals, damaged piston or rod, internal leakage, or contamination within the cylinder. Any noticeable decrease in the cylinder’s performance should be inspected and addressed to prevent further damage or system inefficiencies.

3. Abnormal Noise or Vibrations:

– Unusual noise or vibrations during the operation of a hydraulic cylinder can indicate internal wear or damage. Excessive noise, knocking sounds, or vibrations that are not typical for the system may suggest problems such as worn bearings, misalignment, or loose internal components. These signs should be investigated to identify the source of the issue and take appropriate corrective measures.

4. Excessive Heat:

– Overheating of the hydraulic cylinder is another sign of potential issues. If the cylinder feels excessively hot to the touch during normal operation, it may indicate problems such as internal leakage, fluid contamination, or inadequate lubrication. Excessive heat can lead to accelerated wear, reduced efficiency, and overall system malfunctions. Monitoring the temperature of the hydraulic cylinder is important to detect and address potential problems.

5. External Damage:

– Physical damage to the hydraulic cylinder, such as dents, scratches, or bent rods, can contribute to wear and leakage issues. External damage can compromise the integrity of the cylinder, leading to fluid leakage, misalignment, or inefficient operation. Regular inspection of the cylinder’s external condition is essential to identify any visible signs of damage and take appropriate actions.

6. Seal Failure:

– Hydraulic cylinder seals are critical components that prevent fluid leakage and maintain system integrity. Signs of seal failure include fluid leakage, reduced performance, and increased friction during cylinder operation. Damaged or worn seals should be replaced promptly to prevent further deterioration of the cylinder’s performance and potential damage to other system components.

7. Contamination:

– Contamination within the hydraulic cylinder can cause wear, damage to seals, and overall system inefficiencies. Signs of contamination include the presence of foreign particles, debris, or sludge in the hydraulic fluid or visible damage to seals and other internal components. Regular fluid analysis and maintenance practices should be implemented to prevent contamination and address any signs of contamination promptly.

8. Irregular Seal Wear:

– Hydraulic cylinder seals can wear over time due to friction, pressure, and operating conditions. Irregular seal wear patterns, such as uneven wear or excessive wear in specific areas, may indicate misalignment or improper installation. Monitoring the condition of the seals during regular maintenance can help identify potential issues and prevent premature seal failure.

It is important to address these common signs of wear or leakage promptly to prevent further damage, ensure the optimal performance of hydraulic cylinders, and maintain the overall efficiency and reliability of the hydraulic system. Regular inspection, maintenance, and timely repairs or replacements of damaged components are key to mitigating hydraulic cylinder issues and maximizing system longevity.
China OEM Extended Length Hydraulic Gas Spring Cylinders for Office Chairs   vacuum pump engine	China OEM Extended Length Hydraulic Gas Spring Cylinders for Office Chairs   vacuum pump engine
editor by CX 2023-10-30