SMARTWEIGH INSTRUMENT CO.,LTD
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Checkweigher Integration in Packaging Lines
A checkweigher is a precision instrument used in production and packaging lines to verify that products meet specified weight requirements. Integrating a checkweigher into a packaging line ensures compliance with regulatory standards, minimizes giveaway (overfilling), and detects underweight products that could lead to customer complaints or legal penalties.
Quality Control – Automatically rejects underweight or overweight products, maintaining consistency.
Regulatory Compliance – Meets trade laws (e.g., FDA, EU FMCG regulations) to avoid fines.
Cost Savings – Reduces product giveaway by optimizing fill levels.
Process Efficiency – Works seamlessly with conveyors, fillers, and labeling systems.
Data Tracking – Records weight data for traceability and production analytics.
In-Line Checkweighers – Installed directly within the packaging line, often after filling and before labeling/sealing.
Rejection Mechanisms – Uses pushers, air jets, or diverter arms to remove non-compliant products.
Communication Protocols – Connects via PLC, HMI, or Industry 4.0 systems (e.g., OPC UA, Ethernet/IP).
Multi-Stage Integration – Combines with metal detectors, vision systems, or barcode scanners for full inspection.
Vibration/Noise – Use stable mounting and vibration dampeners.
High-Speed Lines – Choose dynamic checkweighers with fast response times (e.g., 300+ ppm).
Product Variability – Adjust settings for different package sizes via preset recipes.
Food & Beverage – Ensures portion control (e.g., snacks, meat, canned goods).
Pharmaceuticals – Verifies tablet counts and blister pack weights.
Cosmetics & Chemicals – Prevents underfilled bottles or tubes.
AI-Driven Optimization – Predictive adjustments based on historical data.
Cloud-Based Monitoring – Real-time alerts and remote diagnostics.
Specifications:
| Parameter | Specifications |
| Weighing Range | 1g – 50kg (varies by model) |
| Weighing Accuracy | ±0.1g to ±5g (depends on speed & load) |
| Maximum Throughput | 100 – 800 packages per minute (ppm) |
| Minimum Package Size | 20mm (L) x 20mm (W) x 5mm (H) |
| Conveyor Belt Type | Modular plastic, stainless steel, or PU belt |
| Belt Width | 150mm – 600mm |
| Rejection System | Pusher arm, air blast, drop flap, or diverter |
| Mounting | Floor-standing or inline conveyor integration |
| Power Supply | 110V/220V AC, 50/60Hz |
