Office Chair Rear Suspension

The adjustment and use of the reclining function of office chairs should be combined with the functional type and health needs. The specific operations and precautions are as follows:

1. Unlocking the Reclining Function and Restoring the Upright Position
Most office chairs control the reclining state through a handle or lever on the right-hand side. To unlock, gently pull the handle to release the backrest, allowing it to move freely. To restore the upright position, pull the lever outward and give your back a push; the chair will then stand upright, and you can push the lever back in to lock it in the upright position. Some high-end models may use paddle or knob designs, and you should operate them according to the specific product instructions.

2. Reclining Tension Adjustment
The cylindrical knob on the base is the core component for adjusting the reclining tension. Turning it clockwise increases the rebound support force, suitable for users with a heavier weight or those who prefer firm support. Turning it counterclockwise reduces the tension, making reclining easier, suitable for users with a lighter weight or those seeking comfort. When adjusting, try it gradually to avoid excessive tension causing the chair to recline too quickly or insufficient tension failing to provide support.

3. Reclining Angle Locking and Range

• Ordinary Office Chairs: The reclining angle is generally 110-120 degrees, suitable for briefly relieving fatigue, but most do not support angle locking, requiring you to maintain body balance.
• Ergonomic Chairs: They usually support a large reclining angle of 125-135 degrees, suitable for lunch breaks or deep relaxation scenarios. Some high-end models are equipped with multi-stage locking functions, allowing for step-by-step adjustment (such as 90-degree work mode, 120-degree reading mode, and 135-degree lunch break mode) through paddles or knobs on the side of the backrest, which users can freely switch according to their needs.

4. Health and Safety Recommendations

• Angle Control: It is recommended that the reclining angle does not exceed 30 degrees to maintain the neutral position of the spine. If you need to recline for a long time (such as during a lunch break), the angle can be relaxed to within 50 degrees, but you should avoid having your waist suspended in the air.
• Weight Adaptation: Users weighing more than 90 kilograms should choose chairs with a steel base and a four-level gas lift to prevent the risk of component aging or breakage.
• Dynamic Support: Some high-end models adopt dynamic lumbar tracking technology (such as a separate design for the lumbar support and the backrest), ensuring that the waist always has support whether leaning forward or backward, reducing lumbar spine pressure.

5. Special Functions and Product Recommendations
For a personalized reclining experience, you can refer to recommended products such as the SumLush Xia Mu Fit CC Ergonomic Chair. It is equipped with the ZeroG Flow Dynamic Lumbar Support System and the BackFit Four-Way Back-Waist Fit System, supporting multi-stage reclining angle adjustment and featuring dynamic lumbar tracking, suitable for long-term office work or lunch break scenarios.