How long do anti-static casters maintain their conductivity?

The duration of an anti-static caster's conductivity is affected by many factors, and there's no fixed duration; it can range from a few months to several years.
If used in a good environment and properly maintained, the conductivity can be maintained for a long time. For example, in a clean, dry electronics manufacturing workshop, high-quality permanent anti-static casters, such as those with a high-molecular-weight permanent anti-static agent, can maintain their conductivity for 3-5 years or even longer. The special molecular design of these casters ensures that the anti-static agent forms a stable bond with the wheel base material, forming an excellent conductive path for charge transfer and is minimally affected by ambient humidity.

However, if used in harsh environments, the conductivity can degrade rapidly. For example, high humidity, high dust levels, the presence of chemical corrosives, frequent overloading, and frequent impact can accelerate the degradation of the caster's conductivity. For example, in chemical workshops, casters are frequently exposed to corrosive substances such as acids and alkalis. Alternatively, in dusty warehouses, dust can clog the caster's conductive pathways, causing its conductivity to fail within one to two years or even sooner. Furthermore, poor material quality or substandard production processes can also affect the durability of its conductivity.

To ensure the conductivity of anti-static casters, regular testing and maintenance are recommended. For example, monthly testing of the caster's surface resistance with an electrostatic resistance tester can help promptly identify and address any degradation in conductivity.