Pneumatic Rod Office Chair

The pneumatic rod office chair is an office seating solution centered around a pneumatic rod as its core height-adjustment mechanism, offering safety, stability, and versatile functionality.

I. Core Component - Pneumatic Rod
The pneumatic rod, also known as a gas spring, is a device that enables height adjustment without the need for an external power source. Its operation is based on high-pressure nitrogen gas filled inside. By controlling a valve to regulate the connection and isolation between two gas chambers, it utilizes pressure differences to drive the piston rod's extension and retraction, thereby achieving the chair's height adjustment. This design allows for more flexible height adjustment of the office chair, enabling users to easily adjust their sitting posture height according to their own needs to suit different office scenarios.

II. Safety Performance Requirements
High-quality pneumatic rods must ensure the purity of nitrogen gas and pass EN16955 strength grade certification from third-party organizations such as SGS and TÜV. Nitrogen purity directly affects the stability and service life of the pneumatic rod. If other gases are mixed into the nitrogen, it may lead to abnormal internal pressure in the pneumatic rod, posing safety risks. The EN16955 certification, on the other hand, is an authoritative assessment of the strength and safety of the pneumatic rod. Products that pass this certification can withstand higher pressures and frequent use, ensuring user safety. For example, the Henglin L700 office chair uses a Class 4 pneumatic rod that has undergone rigorous safety testing, providing high safety and stability.

III. Functional Versatility
Some pneumatic rod office chairs also offer additional features to meet diverse user needs. Take the Sihoo M56C office chair as an example. Its pneumatic rod, in conjunction with the front handle, allows for chair height adjustment. Pulling up the rear handle unlocks the recline function, while pushing it down locks it in place, with three recline positions to choose from. Twisting a knob adjusts the backrest height, and the headrest can also be adjusted in height. This multifunctional design enables the office chair to not only adjust in height but also adapt to users' sitting habits by adjusting the backrest tilt and headrest position, providing more comfortable support and effectively alleviating fatigue from prolonged office work.