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Conveyor belt load monitoring — catching off-centre loading and spillage earlyConveyor belt load monitoring — catching off-centre loading and spillage earlyConveyor belt load monitoring — catching off-centre loading and spillage early

12 May 2026 12. Mai 2026 12 maggio 2026 · Sachtleben Technology

A belt scale tells you how much mass went past. It tells you nothing about where on the belt the material sat — and that is exactly the information that decides how long the belt lasts.

Why off-centre loading matters. Bulk material rarely lands perfectly centred on a conveyor. A worn chute, a shifted transfer point or a change in material flow pushes the load to one side. The consequences build up slowly and expensively:

  • Belt mistracking. An off-centre load pulls the belt sideways. It runs against the frame, the edges fray, and in the worst case the belt tears.
  • Edge spillage. Material rides too close to the belt edge and spills along the conveyor. Someone has to clean it up — every shift.
  • Uneven idler and belt wear. A load that always sits on the same side wears that side of the belt and its idlers far faster than the rest.

None of this shows up in a tonnage figure. By the time an operator notices it visually, the wear has already happened.

What a LiDAR cross-scan sees. The same 2D-LiDAR sensor that OWL EYE® VOLUME FLOW uses for volume measurement scans the full cross-section of the belt, line by line, crosswise to the running direction. Every scan is a profile — so the system does not just compute a volume, it also knows the shape and position of the load:

  • Material centre-of-gravity versus the belt centreline — a direct off-centre-loading (Schieflast) reading.
  • Profile height across the belt width — peaks, hollows, anomalies.
  • How close the load runs to each belt edge — an early spillage signal.

From inspection to prediction. Because the cross-section is captured continuously, the trend is visible long before the damage is. A load that drifts 8 cm off-centre over two weeks is flagged as a trend, not discovered as a frayed belt edge. That turns conveyor belt load monitoring from a walk-the-belt inspection task into a predictive-maintenance signal the dashboard raises by itself.

One sensor, two jobs. The practical point: you do not add a separate system for this. The cross-scan that measures volume flow already contains the profile data. Off-centre-load and spillage monitoring is a by-product of the volumetric measurement — switched on in software, no extra hardware.

Recommendation. If you already run — or are considering — volumetric conveyor belt measurement, use the profile data. It is the cheapest predictive-maintenance signal on the conveyor, and it is already there.

More at /volume-flow/, the belt-scale comparison at /belt-scale-alternative/, and in the FAQ.

A belt scale tells you how much mass went past. It tells you nothing about where on the belt the material sat — and that is exactly the information that decides how long the belt lasts.

Why off-centre loading matters. Bulk material rarely lands perfectly centred on a conveyor. A worn chute, a shifted transfer point or a change in material flow pushes the load to one side. The consequences build up slowly and expensively:

  • Belt mistracking. An off-centre load pulls the belt sideways. It runs against the frame, the edges fray, and in the worst case the belt tears.
  • Edge spillage. Material rides too close to the belt edge and spills along the conveyor. Someone has to clean it up — every shift.
  • Uneven idler and belt wear. A load that always sits on the same side wears that side of the belt and its idlers far faster than the rest.

None of this shows up in a tonnage figure. By the time an operator notices it visually, the wear has already happened.

What a LiDAR cross-scan sees. The same 2D-LiDAR sensor that OWL EYE® VOLUME FLOW uses for volume measurement scans the full cross-section of the belt, line by line, crosswise to the running direction. Every scan is a profile — so the system does not just compute a volume, it also knows the shape and position of the load:

  • Material centre-of-gravity versus the belt centreline — a direct off-centre-loading (Schieflast) reading.
  • Profile height across the belt width — peaks, hollows, anomalies.
  • How close the load runs to each belt edge — an early spillage signal.

From inspection to prediction. Because the cross-section is captured continuously, the trend is visible long before the damage is. A load that drifts 8 cm off-centre over two weeks is flagged as a trend, not discovered as a frayed belt edge. That turns conveyor belt load monitoring from a walk-the-belt inspection task into a predictive-maintenance signal the dashboard raises by itself.

One sensor, two jobs. The practical point: you do not add a separate system for this. The cross-scan that measures volume flow already contains the profile data. Off-centre-load and spillage monitoring is a by-product of the volumetric measurement — switched on in software, no extra hardware.

Recommendation. If you already run — or are considering — volumetric conveyor belt measurement, use the profile data. It is the cheapest predictive-maintenance signal on the conveyor, and it is already there.

More at /volume-flow/, the belt-scale comparison at /belt-scale-alternative/, and in the FAQ.

A belt scale tells you how much mass went past. It tells you nothing about where on the belt the material sat — and that is exactly the information that decides how long the belt lasts.

Why off-centre loading matters. Bulk material rarely lands perfectly centred on a conveyor. A worn chute, a shifted transfer point or a change in material flow pushes the load to one side. The consequences build up slowly and expensively:

  • Belt mistracking. An off-centre load pulls the belt sideways. It runs against the frame, the edges fray, and in the worst case the belt tears.
  • Edge spillage. Material rides too close to the belt edge and spills along the conveyor. Someone has to clean it up — every shift.
  • Uneven idler and belt wear. A load that always sits on the same side wears that side of the belt and its idlers far faster than the rest.

None of this shows up in a tonnage figure. By the time an operator notices it visually, the wear has already happened.

What a LiDAR cross-scan sees. The same 2D-LiDAR sensor that OWL EYE® VOLUME FLOW uses for volume measurement scans the full cross-section of the belt, line by line, crosswise to the running direction. Every scan is a profile — so the system does not just compute a volume, it also knows the shape and position of the load:

  • Material centre-of-gravity versus the belt centreline — a direct off-centre-loading (Schieflast) reading.
  • Profile height across the belt width — peaks, hollows, anomalies.
  • How close the load runs to each belt edge — an early spillage signal.

From inspection to prediction. Because the cross-section is captured continuously, the trend is visible long before the damage is. A load that drifts 8 cm off-centre over two weeks is flagged as a trend, not discovered as a frayed belt edge. That turns conveyor belt load monitoring from a walk-the-belt inspection task into a predictive-maintenance signal the dashboard raises by itself.

One sensor, two jobs. The practical point: you do not add a separate system for this. The cross-scan that measures volume flow already contains the profile data. Off-centre-load and spillage monitoring is a by-product of the volumetric measurement — switched on in software, no extra hardware.

Recommendation. If you already run — or are considering — volumetric conveyor belt measurement, use the profile data. It is the cheapest predictive-maintenance signal on the conveyor, and it is already there.

More at /volume-flow/, the belt-scale comparison at /belt-scale-alternative/, and in the FAQ.


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