Thermo Scientific Xpert Bulk B400/B600

Significance of Topic

Detecting foreign objects in bulk food processing is a critical step to ensure consumer safety and brand integrity. X-ray inspection systems offer comprehensive detection of metal, glass, rock and other contaminants even in heterogeneous products like nuts, seeds and vegetables.

Objectives and Study Overview

This article presents the Thermo Scientific Xpert Bulk B400 and B600 X-ray inspection systems, detailing their design goals of optimizing throughput, sensitivity and cost-effectiveness in bulk food contamination control. Key aims include evaluating detection capabilities, system flexibility and operational performance in high-volume production environments.

Methodology

The systems employ a high-powered X-ray generator to create detailed density images of bulk product streams. Incoming food is conveyed through the inspection area on adjustable belt widths, enabling real-time scanning.

Used Instrumentation

• X-ray source: 70 kV, 1.2 mA (84 W) or 80 kV, 2 mA (160 W) (B600 fixed at 160 W)
• Detector: standard 0.8 mm resolution, optional 0.4 mm (B400) at up to 2800 lines/s
• Belt configurations: 274 mm and 474 mm widths with adjustable product height up to 72 mm
• Reject mechanism: single- or eight-lane ejection with separate gates
• HMI: 15″ touchscreen with multilingual interface
• Environmental: operating range +5 °C to +40 °C, 0–90 % RH non-condensing
• Compliance: FDA CFR 21 part 1020.40, CE, UL/CSA 508A on request, IP54/IP65

Key Results and Discussion

The Xpert Bulk platforms demonstrate reliable detection of diverse foreign objects across variable flow rates (10–64 m/min) and product densities. Multilane inspection reduces material waste by targeting specific lanes for rejection. Enhanced detector resolution on the B400 model offers improved sensitivity for smaller contaminants.

Practical Benefits and Applications

• Flexible belt widths maximize throughput and cost efficiency.
• Heavy-duty construction supports continuous operation in harsh environments.
• Easy-to-clean design and washdown options ensure hygiene compliance.
• Modular options (higher power, advanced detectors) allow customization to specific production needs.

Future Trends and Opportunities

Advancements in detector technology and image-processing algorithms are expected to further enhance sensitivity and reduce false positives. Integration with Industry 4.0 systems and machine-learning analysis will enable predictive maintenance and real-time quality analytics. Compact designs and energy-efficient X-ray sources will drive wider adoption in small- to medium-scale operations.

Conclusion

Thermo Scientific Xpert Bulk B400/B600 systems offer a robust solution for bulk food inspection, combining high detection performance with operational flexibility and compliance. Their modular design addresses the evolving demands of food safety and quality assurance across diverse production environments.

References

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