Weigh Belt Feeder — Continuous Dosing You Can Verify
The weigh belt feeder combines a short belt conveyor with precision weighing: load cells measure the material on the belt, the controller adjusts belt speed, and the result is a continuously verified mass flow. It is the standard machine for dosing main components into mixers, granulators and dryers.
Working Principle
Material flows from the hopper outlet onto the feeder belt through a defined inlet gate. Load cells under the weighing section measure the belt load (kg/m); multiplied by the measured belt speed (m/s) this gives the live mass flow (kg/s). The controller compares it with the setpoint and trims the belt speed — closing the loop within seconds.
Because the measurement is direct and continuous, the feeder both doses and documents: totalised throughput per batch or shift feeds directly into recipe reports. Calibration with test weights or chains keeps the accuracy traceable.
Typical Applications
- Main component dosing in fertilizer blending and granulation
- Controlled feed into dryers and mills
- Raw material proportioning in chemical processes
- Throughput measurement and reporting on existing lines
Technical Features
Precision weighing
Load cell weighing section with rigid frame and defined belt tension.
Closed-loop control
Inverter-driven belt with live mass flow control against setpoint.
Inlet engineering
Gate and skirt design ensuring a stable material bed on the belt.
Calibration equipment
Test weight or chain calibration for traceable accuracy.
Data Required for Feeder Design
| Design input | Role in the design |
|---|---|
| Material and bulk density | Belt width and bed depth |
| Dosing range (t/h min–max) | Turndown and drive sizing |
| Required accuracy | Weighing section and control specification |
| Upstream storage | Inlet gate and discharge aid design |
Accuracy commitments are stated in the proposal based on the dosing range and material flow behaviour.
Why Pro Makina
Manufactured in Turkey
Design and fabrication are carried out in our own facility in Eskişehir, Turkey, with full in-house engineering control.
Project-based engineering
Every machine is sized around your raw material, moisture content and capacity target — not sold from a fixed catalogue.
Export experience
We prepare international technical proposals, shipping documentation and commissioning support for overseas projects.
Single point of responsibility
Process design, fabrication, automation and commissioning are managed by one engineering team.
Frequently Asked Questions
How does a weigh belt feeder differ from a belt scale?
A belt scale only measures flow on an existing conveyor; a weigh belt feeder actively controls the flow to a setpoint. For dosing duties the feeder is the right machine.
What turndown ratio is possible?
Weigh belt feeders regulate over a wide range between minimum and maximum flow; the practical turndown depends on stable material bed formation and is defined in the design.
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Share Your Project Details
Send us your raw material, capacity and process data. Our engineering team will review your requirements and prepare a project-specific technical proposal.
Weigh Belt Feeder — Continuous Dosing You Can Verify
Final dimensions, capacity and drive power are determined per project, based on your raw material analysis, moisture content and process calculations.