G0311 OA Nitrogen Gas Pressure Cylinder for Office Chair Up/Down [For Ultra-Low Seat] L=272mm

■: This product is a planned product that can only be sold by Pascal Japan Co., Ltd. Please check the name of the seller before purchasing. ■[Description-1] ◆This is a nitrogen gas pressure cylinder that moves up and down.・Please purchase the size that matches your chair. It can be used for major office automation chairs and gaming chairs that use general cylinders. The diameter of the insertion shaft is 28mm standard. The diameter of the shaft that is inserted into the legs is 50mm standard. *Please allow for any scratches or dirt from storage that do not affect the lifting function. (Since operation is being checked, there may be scratches that do not affect operation when installing for inspection.) *Product warranty is for 7 days after arrival for initial defects only. *Removal of old parts and replacement of parts requires working skills. Please remove the old parts and check the dimensions before purchasing. *There are no work instructions.　 ◆Please be sure to check the dimensional drawings and confirm compatibility with the parts you are replacing before purchasing.　 　 ◆This part does not guarantee the same performance as the manufacturer's genuine part. [Description-2] ●This part is a medium pressure type (pressure for general office chairs) nitrogen gas filled cylinder. There may be some operating noise and a gap between the cylinder shaft and the cylinder body during use. ●This part is a safe gas cylinder filled with nitrogen gas (non-flammable gas) that has passed the standard test of DIN4550/(BIFMA X5.1) standards. ● ``Regarding the characteristics of parts that vary depending on pressure'' Even if the dimensions and specifications of the parts are the same, the characteristics will change depending on the pressure of the filled gas.The following are the characteristics when separated into the three types.　``Low pressure'' chairs for school children and children are set so that the height of the seat can be lowered even when the weight is light. "Medium pressure" Used in major office chairs.　　``High pressure'' chairs may be used for heavy objects. If you use a pressure lower than the one you are currently using: The amount of sinking of the cylinder when sitting down = cushioning properties will increase.The same goes for when standing up, and the amount of operating noise will also increase. On the other hand, if you use a material with high pressure, the amount of sinking when sitting will be reduced, giving the impression of being hard when sitting. [Explanation -3] ▲▲ Even if the external dimensions of high-performance chairs (high-priced chairs, famous brand chairs, etc.) are the same, they may use parts of different standards, cylinders with high pressure, special cylinders, or dedicated cylinders.　　▲▲　Heavy chairs with a large reclining angle apply diagonal pressure to the cylinder, which places a high load on the cylinder and may cause rattling due to the gap size, so a special gas cylinder may be used. ▲▲ If this part is used in this chair, a high load will be placed on the cylinder, which may cause noise, rattling, or malfunction. ●●Please use the manufacturer's genuine gas cylinder for high-performance chairs and expensive chairs that use special cylinders. ◆This part does not guarantee the same performance as the manufacturer's genuine part. [Explanation-4] ● ``Gap Dimensions'' This part has a gap size required for operation between the contact surface of the cylinder shaft and the cylinder body. General parts, excluding special cylinders, have clearance dimensions necessary for operation, but this may not be a concern during conventional use, but may become a concern after parts are replaced. This gap size can be checked by applying a load and rocking the chair from side to side, or by reclining the chair. Please note that this is a characteristic of the parts. ●●For high-performance chairs and high-priced chairs that use dedicated cylinders or special cylinders, please use the manufacturer's genuine gas cylinder. ◆This part does not guarantee the same performance as the manufacturer's genuine part. [Description-5] ▲Please note that repairs or modifications made by the customer may void the manufacturer's warranty on the chair itself. ▲This part does not guarantee the same performance as the manufacturer's genuine product you are using. If you replace it with a part of a different standard or specification, there is a risk of large rattling or noise. ●●●●●If you are looking for cylinder parts with other dimensions, please search for "vertical lifting nitrogen gas pressure cylinder for OA office chairs". ●The standard used for major office automation chairs and gaming chairs is that the diameter of the insertion shaft is 28mm. The diameter of the shaft inserted into the leg is 50mm standard. ●Special chairs may have legs with a diameter of 40mm or 30mm, so please check before purchasing. ●Cylinders used in Japan, such as study chairs for school children, may contain low-pressure cylinders (parts that can be raised and lowered even with a light weight). This part is a standard specification part. ●Pay attention to the size of the part that protrudes from the legs. The five-legged legs of the OA chair come in a variety of heights. If you attach parts that do not match the design (dimensions) of the legs, the seat surface may become too high or the length protruding from the legs may be too long and touch the floor. ●●●This part strongly engages with the legs and seat metal fittings depending on the period of use and the user's weight, making it impossible to install or remove it easily●●●In addition, the parts we sell do not include [work instructions], and depending on the skill of the worker, the parts may not be able to be removed, so we recommend that you check that the part you are replacing before purchasing can be removed. I will do it. ◆: Recommended tools for removal = urethane shockless hammer 2-3 pounds, lubricant ◆: When working, remove all removable parts such as casters and seats, be careful not to damage other parts, ensure the safety of the work area, wear work gloves and safety glasses, and be careful not to get injured. ◆: If you do not have sufficient skills, ask a specialist to do the work. ▲▲▲: This product is a highly versatile, popular medium pressure cylinder that does not guarantee 100% the same usability and performance as the manufacturer's genuine parts that you are currently using. High-performance chairs, expensive chairs, and chairs from famous manufacturers use specially designed cylinders, special cylinders that can withstand diagonal pressure generated from large reclining angles, and high-pressure cylinders. Using parts with different specifications and standards in such chairs can lead to rattling and noise.