Gravimetric Loss-in-Weight Feeder for Precision Powder Dosing
Loss-in-weight feeder for continuous gravimetric dosing of powders and granules. ±0.25% accuracy for cement additives, chemicals, and food ingredients.
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Introduction
Gravimetric Loss-in-Weight Feeder for Precision Powder Dosing
Gravimetric Loss-in-Weight Feeder
The loss-in-weight feeder is the gold standard for precision dosing of bulk materials. It continuously weighs the entire feeder plus its contents, measuring the weight loss over time to calculate the actual feed rate. A PID controller adjusts the feeder speed to maintain the target rate within ±0.25% accuracy.
Operating Principle
The hopper, feeder (screw, vibratory, or belt), and material are all mounted on load cells. As material discharges, the controller calculates the instantaneous feed rate from the weight loss rate. If the actual rate deviates from the setpoint, the controller adjusts the feeder speed proportionally.
Applications
- Cement additive dosing (fly ash, slag, gypsum, limestone)
- Chemical powder metering for water treatment
- Food ingredient batching (flour, sugar, spices)
- Pharmaceutical excipient dosing
Specifications
- Feed rate: 1-200 tph depending on model
- Accuracy: ±0.25% of setpoint (gravimetric mode)
- Hopper capacity: 0.5-20 m³
- Output signals: 4-20mA, Modbus, Profibus
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Case
Industrial Steel Silo EPC Solutions | Manxing's Proven Engineering Excellence
Manxing has successfully delivered comprehensive steel silo systems for cement, clinker, fly ash, and coal storage applications. Our extensive project portfolio demonstrates advanced engineering capabilities, innovative design, and consistent superior performance across diverse industrial sectors.
Silo System
Manxing is a leading EPC contractor specializing in bulk material storage and conveying systems, providing customized steel silo solutions for cement, fly ash, coal, clinker, slag, and other industrial materials worldwide.
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