Reliable feeding depends on controlled demand signals.
Cap feeder level sensors help the system react to real cap demand. A chute-empty or chute-full signal can stop the feeder running unnecessarily and reduce the risk of empty capper cycles.
The correct sensor type and position depend on cap material, chute design, line speed and environmental conditions. Some caps are difficult to detect because of colour, reflectivity or geometry.
Sensor integration should be planned with the capper controls so feeder starts, stops and faults are handled safely.