Office Chair Spring Specifications

The specifications of office chair springs vary depending on their types, mainly including gas springs, coil springs, and gas cylinder springs. The specific specifications are as follows:

The specifications of gas springs for office chairs involve several key parameters. The nominal force typically ranges from 200N to 1200N, determining the constant supporting force that the gas spring can output within its standard stroke, directly affecting the load-bearing capacity and comfort of the office chair. The stroke range is from 50mm to 400mm, representing the maximum distance the piston rod can move, which determines the range of height adjustment for the office chair. The cylinder diameter generally falls between 22mm and 28mm, directly influencing the gas tightness and pressure-bearing capacity of the gas spring, with a larger diameter usually indicating stronger pressure-bearing capacity and better gas tightness. The operating temperature range is from -20℃ to 80℃, ensuring that the gas spring can work stably in extreme environments without failing due to temperature changes. The gas tightness test requires a leakage rate of ≤0.1ml per minute, a strict standard that guarantees the long-term performance of the gas spring and avoids a decrease in supporting force due to gas leakage. The durability requirement is for a cycle count of ≥100,000 times, with a lifespan standard of mostly 30,000 to 50,000 reciprocating tests, ensuring the durability of the gas spring. The force accuracy error is controlled within 3%, stricter than the industry-standard 5% error, providing more precise control over the supporting force.

The specifications of coil springs for office chairs are relatively simple, mainly including diameter and number of coils. The diameter is usually 5-8mm, a range suitable for the design requirements of most office chairs. The number of coils is generally 4-6, determining the elasticity and supporting force of the coil spring, with more coils usually resulting in better elasticity but also taking up more space.

The specifications of gas cylinder springs for office chairs mainly focus on the gas cylinder model, commonly class 3 or class 4, with load-bearing capacities of 113kg and 136kg respectively. This parameter directly determines the load-bearing capacity of the gas cylinder spring, and choosing the appropriate gas cylinder model is crucial for ensuring the safety and stability of the office chair.