Electronic Gravimetric Weigh Feeder
Precision Continuous Weighing & Feeding for Bulk Solids
Indus Electronic Gravimetric Weigh Feeders represent the pinnacle of continuous feeding technology for bulk solids. As a leading manufacturer in Bangalore, we incorporate state-of-the-art engineering to deliver precise, reliable proportioning of materials in high-volume industrial processes. Operating on a closed-loop control system, these feeders continuously measure belt load and speed, compare actual flow to setpoints, and automatically adjust conveyor speed to maintain exact feed rates—ensuring consistent quality and optimal process control.
How It Works – Closed-Loop Control System
- Material Loading – Bulk material is fed onto the moving conveyor belt via hopper or chute.
- Weight Measurement – Two high-precision load cells measure belt load (kg/m).
- Speed Measurement – Rotary encoder monitors belt speed (m/s) in real-time.
- Flow Calculation – PLC calculates instantaneous flow rate:
Flow Rate = Belt Load × Belt Speed - Comparison – Actual flow compared to operator-set setpoint.
- Correction – Any deviation triggers VFD to adjust belt speed, maintaining target flow.
- Totalization – Cumulative throughput displayed and recorded.
Technical Specifications
| Feature | Specification |
|---|---|
| Capacity Range | 0.5 – 2000 TPH (tons per hour) |
| Accuracy | ±0.5% FSR (Full Scale Range) |
| Belt Width | 300 mm – 2000 mm (as per capacity) |
| Load Cells | High-precision, hermetically sealed, stainless steel |
| Speed Sensor | Rotary encoder, non-contact type |
| Control System | PLC with PID controller & Touchscreen HMI |
| Drive System | Variable Frequency Drive (VFD) – closed-loop |
| Communication | 4-20mA, RS-485, Ethernet/IP, Profibus, Modbus |
| Power Supply | 415V, 3 Phase, 50 Hz |
Salient Features
- Precision Machined Rollers
Ensure perfect belt alignment and consistent weighing accuracy for reliable performance. - Rubber-Coated Pulleys
Prevent belt slippage, maintaining speed integrity and accurate flow control. - Gravity Take-Up Unit
Maintains constant belt tension automatically, eliminating manual adjustments. - Scraper System
Multiple scrapers prevent material buildup, protect belt, and eliminate tare changes. - Easy Maintenance Design
Belt can be changed from the side without external aids or crane support—minimizing downtime. - Sealed Electronics
IP65/IP66 rated junction boxes and load cells for harsh industrial environments. - Auto-Zero & Auto-Span
Automatic calibration routines ensure long-term accuracy with minimal drift.
Optional Features
- RS-485 Interface
Enables remote monitoring, data logging, and printouts with SQC (Statistical Quality Control) Analysis for quality management. - Batch Controller Integration – For totalized batch dosing applications.
- Inlet Flow Aid Devices – Vibratory trays, agitators, or screw feeders for consistent material feed.
- Dust Enclosures & Extraction Points – For clean operation with dusty materials.
- Corrosion-Resistant Construction – SS304/SS316 or coated surfaces for corrosive environments.
- Explosion-Proof Design – ATEX certification for hazardous areas.
- High-Temperature Belts – For hot materials like clinker or sinter.
Applications
| Industry | Typical Materials |
|---|---|
| Cement | Raw meal, clinker, gypsum, coal, fly ash, additives |
| Sponge Iron | Iron ore, coal, dolomite, fluxes |
| Steel | Sinter, pellets, coke, limestone, slag |
| Fertilizer | Urea, DAP, MOP, rock phosphate, additives |
| Chemical | Soda ash, pigments, polymers, catalysts |
| Tobacco | Cut tobacco, flavoring additives |
| Petrochemical | Coke, catalysts, additives |
| Power Plants | Coal, limestone for FGD |
| Mining & Minerals | Bauxite, copper concentrate, phosphate rock |
Control & Connectivity
- Touchscreen HMI – Real-time flow display, trending, diagnostics, and recipe management
- Advanced PID Tuning – Self-adaptive or manual tuning for optimal control response
- Data Logging – Stores flow totals, alarms, and calibration records
- Remote I/O & Networking – Integrates with plant DCS/SCADA systems
- Alarm Management – Belt slip, overload, blockage, and calibration alerts
- Multi-Language Support – Operator interface in local languages
Why Choose Indus Weigh Feeder?
✅ High Accuracy – ±0.5% FSR ensures precise control of material flow
✅ Robust Construction – Built for 24/7 heavy-duty industrial operation
✅ Low Maintenance – Easy belt replacement and sealed components reduce downtime
✅ Process Optimization – Consistent feed rate improves product quality and reduces waste
✅ Flexible Configuration – Custom lengths, widths, and capacities to match your layout
✅ SQC Ready – Optional RS-485 interface for statistical quality control
✅ Proven Reliability – Installed in critical processes across cement, steel, and fertilizer industries
Integration Capabilities
- Standalone Operation – Manual setpoint control
- Line Integration – Part of continuous blending or milling circuit
- Multi-Feeder Systems – Synchronized control for blended products
- SCADA / DCS Integration – Full remote monitoring and control
- Weigh Bridge Integration – For bulk material receipt verification
Industries Served
| Industry | Application |
|---|---|
| Cement | Raw mill feeding, kiln feeding, coal firing |
| Sponge Iron | Rotary kiln feeding |
| Steel | Sinter plant, blast furnace charging |
| Fertilizer | Granulation plant dosing |
| Chemical | Continuous reactor feeding |
| Tobacco | Flavor dosing, blending |
| Petrochemical | Catalyst addition |
Request a Weigh Feeder Proposal
✅ Material Analysis – We evaluate your material characteristics for optimal design
✅ Process Review – Assess your current feeding setup and recommend improvements
✅ Capacity Calculation – Determine correct size and speed for your throughput
✅ Layout Planning – Provide CAD drawings for seamless plant integration
✅ Performance Guarantee – Committed to specified accuracy and reliability
✅ After-Sales Support – Installation, commissioning, training, AMC, spare parts
📞 Call/WhatsApp: +91 98454 52906
📧 Email: indusdigitalmarketing01@gmail.com
🌐 Website: www.induscontrol.in
Precision in motion. Control in flow.
