Thermal Seal Inspection
Ensure every seal is defect-free and tamper‑proof, using thermal monitoring
Thermal Seal Inspection
Out of the box solution for 100% in-line quality control, when seal integrity is critical. Built for bottles, pouches, bags, and sealed packages.
Thermal seal inspection uses infrared thermography to identify weak or defective seals on packaging by analyzing heat distribution, often achieving >99% accuracy. It is a non-destructive, high-speed, inline method used to detect leaks, contamination, and misalignments in pouches, bottles, and trays. This technology works through opaque, printed materials to verify seal integrity.
- Methodology: Infrared cameras detect inconsistencies in heat patterns along the seal line. A cooler area typically suggests a lack of heat/pressure (weak bond), while uneven areas indicate contamination. Infrared cameras basically “see” the residual heat from joining, gluing, sealing, and welding processes.
- Applications: Commonly used in food processing for trays, bags, and pouches, and in pharmaceutical applications for induction-sealed bottles, pouches, sacks etc.
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Advantages of High-Resolution Thermal Inspection
- 100% Inspection of all seals to ensure packaging quality.
- Non-contact Thermal Measurement guarantees detailed and accurate product inspection. No need to open packaging to check quality.
- High-speed Inspection caters to the demands of fast-paced packing.
- Advanced Machine Vision analysis further enhances the system’s precision & reliability.
- Improved Quality: Detects issues standard cameras cannot, such as microscopic weak bonds or inclusions.
Thermal Inspection vs Other Methods
| CONSIDERATIONS | THERMAL INSPECTION | PRESSURE TESTING | MANUAL INSPECTION |
|---|---|---|---|
| Defect Detection | Comprehensive | Limited | Limited |
| Speed | Fast | Moderate | Slow |
| Automation | Fully Automated | Semi-Automated | Manual |
| Non-Destructive | Yes | Yes | No |
| Real-Time Monitoring | Yes | Semi | No |
| Cost-Effectiveness | High | Moderate | Low |
| Scalable | Scalable | Limited | Limited |
| User Skill Dependency | Low | Moderate | High |
| Data Collection | Automated | Semi-Automated | Manual |
Seal defects can happen anywhere, catch them all
The Thermal Seal Inspection System consists of
- High-performance infrared camera (FLIR)
- Standard powder-coated Industrial Electrical Enclosure with Touch-Screen PC and application software (Hi-Tech/ MoviTHERM/User’s own developed)
- Robust bi-directional PLC interface to transfer status messages and PASS/FAIL results to plant PLC over Ethernet/IP or Modbus (Hi-Tech/ MoviTHERM/User’s own developed)
- Image FTP to transfer fault images to remote server for offline review
Intelligent programming identifies the most common seal defects & causes and safeguards your brand promise with 24/7 intelligence and reporting. Following defect detections are possible with the system:
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When it comes to thermal seal inspection applications in India, Hi-Tech Systems & Services Ltd. is the go-to company, having implemented most projects so far, across the nation.