Office Chair Slippage

The most common cause of office chair slippage is the leakage of high-pressure nitrogen gas inside the gas lift due to aging or poor sealing of the gas rod, which makes it unable to maintain the locking pressure and results in slow sinking under the weight of the human body.

Core Reasons for Gas Lift Failure

1. Aging and Pressure Loss of the Gas Rod
   As a consumable part, the gas rod's internal seals can age over time due to repeated lifting and lowering, leading to slow leakage of high-pressure gas and a gradual reduction in locking ability. This is the most common cause of gas lift failure and is usually directly related to the years of use.

2. Seal Wear Leading to Gas Leakage
   The gas rod has multiple layers of sealing structures inside. If dust, moisture, or aged lubricant enters, it can damage the sealing performance. Even if there is no significant loss of gas, slight leakage can prevent the gas rod from locking, causing the chair to sink slowly.

3. Poor Quality of the Gas Spring Itself
   Low-cost products may use gas springs with insufficient nitrogen purity or insufficient thickness of the cylinder wall, resulting in unreliable initial performance and a higher likelihood of gas leakage or structural damage after long-term use.

4. Adjustment Rod Continuously Pressing the Valve
   If the metal adjustment rod connecting the adjustment handle and the gas rod is misaligned, has loose screws, or has worn plastic parts, it may continuously press the pin, keeping the valve partially open and causing the chair to sink slowly.

5. Deformation of the Base Mechanism
   Long-term overloading or violent impacts to the chair can cause slight deformation of the base steel plate, affecting the stability of the cooperation between the gas rod and the base, and leading to slippage.

6. Loose Adjustment Screws
   If the adjustment screws connected to the gas spring become loose, it can disrupt the stability of the overall structure, preventing the chair from maintaining a fixed height.

Typical Symptoms of Gas Spring Failure

• Slow automatic sinking
• Weak pressing and inability to rebound
• Audible gas leakage sound
• Seat tilting or obvious unevenness

Preliminary Self-Inspection and Handling Suggestions

1. Three-Step Self-Inspection Method

   • Pressing test: Quickly press down on the seat. If you feel like you are sitting all the way down without rebound, there may be a gas leak.
   • Sitting and listening: Stay still and carefully listen for any continuous gas leakage sound from the bottom of the chair.
   • Observing performance: Check if the chair sinks automatically or tilts significantly without any adjustment.

2. Quickly Check for Other Possibilities

   • Check if there are any foreign objects blocking the adjustment valve/locking mechanism at the bottom of the chair.
   • Confirm that all connecting screws and bolts are tightened.
   • For electric lifting chairs, check if the power supply, circuit, and motor are functioning properly.

3. Safety Handling Principles

   • It is strictly prohibited to disassemble, drill, or repair the gas rod by yourself, as the internal high-pressure state may pose an explosion risk.
   • Contact the official repair service or purchase a matching gas rod for replacement according to the chair's purchase time and the brand's after-sales policy.