Office Chair Base Breakage

Office chair base breakage may be caused by material aging and quality issues, structural fatigue and design flaws, improper use and overload, etc..

Material aging and quality issues: Chairs made of inferior crushed wood拼接（这里“拼接”在英文语境下无需单独翻译，直接用拼接的原材料描述即可） plywood, recycled plastic (PP material), or metal with overly thin tube walls have inherent strength deficiencies. After long-term use, these materials are prone to cracking, deformation, or brittle fracture. For example, to save costs, some office chairs have overly thin tube walls for the metal five-star base or use materials with poor strength, which may lead to base breakage. Inferior materials are more likely to experience fatigue and damage when subjected to pressure and friction, thereby triggering base breakage.

Structural fatigue and design flaws: Key parts of office chairs, such as the connection between the backrest and the base and the height adjustment mechanism, are subjected to repeated loads over a long period. This 'fatigue' effect gradually generates micro-cracks, ultimately leading to structural damage. Some low-quality manufacturers, in an attempt to cut costs, use thin-walled tube materials, inferior connectors, and even omit key protective components. These design flaws may be difficult to detect during short-term use, but long-term repeated leaning can gradually wear out the components, causing micro-cracks and eventually leading to base breakage. For example, if the connectors have insufficient strength, they are prone to loosening or breaking under repeated stress, thereby affecting the stability of the entire base.

Improper use and overload: Exceeding the product's designed load-bearing limit or frequently applying unbalanced forces (such as sitting at an angle or stepping on the chair) can cause accidental damage to the chair. Office chairs are designed with certain load-bearing ranges and usage requirements. If users ignore these requirements during use, it can easily lead to base breakage. For example, a person with a relatively heavy weight using an office chair with a small load-bearing capacity or frequently performing vigorous movements on the chair can increase the risk of base breakage.