You can judge if your electric actuator is bad mainly by observing its noise characteristics and associating them with performance changes, combined with the content of the document. The key judgment criteria are as follows:
Low-quality or faulty actuators typically produce high and chaotic noise, with specific abnormal sounds indicating component failure:
- "Impact sounds": May be caused by gear tooth breakage;
- "Abnormal humming": Likely due to bearing damage;
- "Rattling sounds": Often results from loose components.
These abnormal noises are direct signals of actuator failure and may lead to sudden equipment shutdown.
If the actuator’s noise increases sharply while performance declines (e.g., insufficient output torque, slow response speed, severe heat generation), it is likely faulty. For example, some inferior actuators that are forcibly made quiet (by reducing motor power, etc.) will have obvious performance degradation and are prone to damage in heavy-load scenarios.
Faulty or low-quality actuators have no effective noise control measures. Their inherent operating noise is high, and the noise level fluctuates greatly and irregularly during operation (unlike high-quality actuators with stable noise levels).
High-quality actuators only have slow noise attenuation with normal wear during the full life cycle (e.g., 100,000 action cycles). If your actuator’s noise suddenly rises without reason, it indicates potential faults or quality problems.