Load Cell Solutions for Belt Scales and Weigh Feeders
Measure bulk-material flow on moving conveyors for production monitoring, inventory control, batching and controlled feeding. We support load-cell selection for belt scales, weigh feeders and conveyor-integrated weighing equipment.
Request a Conveyor Weighing SolutionAccuracy Depends on More Than the Load Cell
A conveyor scale calculates flow from belt load and belt speed. Mechanical alignment, belt tension, material distribution, vibration and signal processing all influence the final result.
Typical Belt-Weighing System
- One or more load cells in the weigh frame
- Weigh idler or integrated weighing section
- Belt-speed sensor or encoder
- Integrator, transmitter or controller
- Zero and span calibration arrangement
- PLC, batching or process-control interface
Solutions for Continuous Material Handling
Select the arrangement according to the required function, conveyor structure, flow range and target accuracy.
Conveyor Belt Scales
Continuous flow measurement for aggregates, grain, minerals, coal, feed, fertilizer and other bulk materials transported by belt.
Weigh Feeders
Controlled material delivery where measured belt load and speed are used to regulate a target feed rate for batching or process control.
Conveyor Check Weighing
Integrated weighing sections for discrete packages or products where weight verification, sorting or rejection is required in motion.
Information Needed for System Selection
Share these operating details so load-cell capacity, weigh-frame structure and electronics can be evaluated together.
| Parameter | Details to Confirm |
|---|---|
| Function | Flow monitoring, totalizing, controlled feeding, batching or package check weighing |
| Material | Bulk density, particle size, moisture, flow behavior and expected impact |
| Flow Range | Minimum, normal and maximum mass flow rate |
| Conveyor | Belt width, speed range, inclination, idler spacing and structural drawings |
| Accuracy Target | Required repeatability, totalized accuracy and allowable process variation |
| Environment | Dust, moisture, washdown, corrosion, vibration and temperature |
| Control Interface | Display, totalizer, analog output, pulse, fieldbus, PLC or feeder control |
Four Factors That Protect Dynamic Accuracy
Keep the weigh idler and adjacent idlers aligned to avoid false force on the weigh frame.
Maintain stable tracking and tension, and control material buildup on the belt and rollers.
Minimize impact, surging and uneven distribution before material reaches the weighing zone.
Perform zero checks and scheduled span verification using an appropriate calibration method.
Belt and Conveyor Weighing FAQ
How does a conveyor belt scale measure flow?
The load cells measure material load over a defined belt length, while a speed sensor measures belt velocity. The integrator combines these signals to calculate instantaneous flow and totalized mass.
Which load cell is suitable for a belt scale?
Shear beam, single-point and other compact load cells may be used depending on weigh-frame design, capacity, load distribution, vibration and environmental requirements.
Why does belt tension affect accuracy?
Changing tension and poor alignment can apply forces to the weighing idler that are unrelated to material weight, causing zero drift or measurement error.
Is a speed sensor always required?
A speed sensor is strongly recommended when belt speed varies. A fixed-speed assumption may be possible in limited applications but must match actual operating conditions.
How is a belt scale calibrated?
Common methods include static test weights, calibration chains, material tests or a combination. The method should verify both zero and span under representative operating conditions.
What information should I send for a quotation?
Please send the application, material, flow range, belt width and speed, inclination, drawings, accuracy target, environment, output requirements and destination.
Planning a Conveyor Weighing Project?
Send your material, flow rate, belt dimensions and accuracy target for a suitable load-cell configuration.