
Material Flow Detector
Mechanical sensor to detect the presence or absence of material on the conveyor belt
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Mechanical sensor to detect the presence or absence of material on the conveyor belt
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Material Flow Detector for belt conveyor is a sensing device used to monitor the presence of material on a belt conveyor. It detects when the belt is empty or blocked and sends an alarm or shutdown signal to the control system, helping prevent equipment damage, production delays and energy waste.
Possible to prevent quality defects at the next production process due to lack or contamination of the transporting material.
Useful to predict the transferring chute blockage or overflow situation.
Energy saving is expected by controlling start/stop of the secondary conveyor by the presence of material at the primary conveyor.


The detection blade always touches with the belt or material and in the abrasive situation. Our blade is applied with the abrasion-resistant treatment and has higher durability.
By giving the detection blade a curved shape, sudden fluctuations in the load material profile are mitigated.
Mount the detector so that the direction of detection blade is set against the material flow direction as shown in the left figure.
The detection lever tilts when there is a material load on the conveyor.
Depending on the tilt angle, it outputs an alarm or shutdown signal.

Series | Main models | Remarks |
EFSL Series | ESFL-155S | IP67 |
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