Vacuum feeders are devices that transport granular or powdered materials using high vacuum and inert gas. They may trigger alarms due to various operational issues, which can impact conveying efficiency.

Vacuum feeders may issue alarms for reasons such as prolonged feeding time, material weight discrepancies, or other operational anomalies. One of the most common alarms is triggered by underfeeding during the material loading process. If the feeder fails to suction material from the feed inlet, underfeeding occurs, leading to an alarm.

Additionally, alarms may activate if the feeder fails to load material within the set feeding time. To resolve this, the feeding time parameters can be readjusted. Another potential cause is damage to sensors within the feeding system, which can also trigger alarms.

Before using a vacuum feeder for material transport, it is essential to inspect vulnerable components to effectively prevent alarms and operational failures. Since sealing integrity and filtration efficiency are critical factors in equipment performance, the sealing rings and filtration system should be rigorously checked. If an alarm is triggered due to filter clogging, the filter element can initially be cleaned using reverse air blow or removed for thorough cleaning.