Quality Food Metal Detector & Food Grade Metal Detector manufacturer

Ensuring product safety under aluminum foil packaging has always been a challenge for many food manufacturers. Traditional metal detectors cannot penetrate aluminum foil, making it difficult to detect metal fragments or other foreign bodies inside sealed packages. Recently, Guangdong Shan’an Technology successfully completed an inspection test using our X-ray Inspection System for a customer’s aluminum-foil packaged food products. The results demonstrated clear advantages in accuracy, stability, and adaptability. Background The customer produces snack items sealed in aluminum foil film. Due to the packaging material, their existing metal detector could not identify contaminants such as stainless steel, iron, or non-metallic foreign bodies. To ensure production safety, they required a detection solution that works regardless of packaging type. Inspection Process During the test, samples were placed directly onto the conveyor without any special preparation. The Shan’an X-ray system automatically analyzed internal structures of each package and detected multiple types of contaminants, including: Stainless steel Ferrous metals Glass fragments Hard plastic Stones and other dense materials Even under high-speed production conditions, the system maintained a stable rejection accuracy and clear imaging. Test Results Packaging type: Fully sealed aluminum foil Inspection speed: Suitable for continuous mass production Detection performance: Foreign bodies as small as 0.3–0.5 mm Reject system: Automatic, with real-time image storage The customer confirmed that X-ray inspection provides a more reliable solution for their packaging line compared to traditional metal detection. Why X-ray for Aluminum Foil Packaging? Detects foreign objects even through thick aluminum foil Identifies more than just metal Works with high-moisture, high-salt, or conductive products Provides real-time imaging for traceability Reduces product risks during audits and export inspections Conclusion Shan’an’s X-ray Inspection System offers an effective and stable solution for aluminum foil packaged products. With clear imaging, high precision, and compatibility with fast production lines, it helps manufacturers meet domestic and international food safety standards with confidence. If you would like to arrange a similar test or learn more about our inspection systems, our technical team is ready to assist.     Ruth Zheng Sales Manager Whatsapp/Wechat:+86 138 2728 2272 E-mail: ruth@shanantechnology.com Company: Guangdong Shanan Technology Co.,Ltd Website: www.foodgrademetaldetector.com

As food safety regulations tighten and audits become more frequent, food manufacturers must be fully prepared to pass inspections and meet all compliance standards. One key factor in passing audits with ease is ensuring that your metal detectors, X-ray inspection systems, and checkweighers are fully documented and operational. To help food factories stay audit-ready, we’ve compiled a comprehensive checklist of the essential documentation you’ll need to provide during customer audits: 1. Metal Detector Documentation Daily Sensitivity Test Logs: Ensure your metal detectors are calibrated regularly, with daily tests verifying their effectiveness for detecting Fe, SUS, and Non-Fe metals. Test Piece Verification: Records showing that metal detectors have been tested with various test pieces. Reject System Function Log: Evidence that the reject system is working properly to remove contaminated products from the production line. Calibration Certificates: Certificates confirming that your machines are properly calibrated to meet industry standards. HACCP Validation: Documentation that your metal detectors are validated as Critical Control Points (CCPs) within your Hazard Analysis and Critical Control Points (HACCP) plan. 2. X-ray Inspection Documentation Image Verification Records: Logs that demonstrate the system’s ability to detect contaminants through image analysis. Product Learn Documentation: Details showing the products the X-ray system is calibrated to inspect. Reject Confirmation Log: Verification that rejected products are consistently logged for traceability. Detection Capability Report: A report detailing the effectiveness of the X-ray machine in detecting foreign materials. Annual Calibration Certificates: Certification that the X-ray system is calibrated yearly. 3. Checkweigher Documentation Accuracy Verification Logs: Records proving that the checkweigher’s accuracy is regularly tested. Zero / Span Check Records: Confirmation that the machine’s zero point and span range are checked frequently. Reject Records for Over/Underweight Products: Evidence that products that fail weight specifications are rejected. Packaging Weight Standards: Details showing that product weight standards are maintained for packaging. Maintenance & Calibration Logs: Maintenance records to prove that equipment is regularly serviced and calibrated. 4. General Audit Essentials Cleaning SOPs & Records: Documentation of cleaning procedures and frequency. Traceability Records: Systems that allow tracking of products from raw materials to the final product. Non-conformity Handling: Records of how deviations are detected, documented, and corrected. Preventive Maintenance Logs: Documentation showing proactive maintenance to minimize downtime. Operator Training Records: Proof that personnel are trained on using equipment and understanding safety standards. Stay Audit-Ready Every Day Food safety audits are not just about meeting requirements for one day — they’re about maintaining consistent and documented practices across your entire operation. Regular checks, clear documentation, and validated equipment can save time, resources, and ensure that your products meet the highest standards. At Shanan Technology, we provide reliable and accurate metal detectors, X-ray inspection systems, and checkweighers that help food manufacturers meet compliance and protect their brands. Our equipment not only ensures product safety but also simplifies the audit process, making it easier for your team to stay organized, efficient, and ready for inspections at any time. Get in Touch with Us Need more information on how to improve your audit preparation? Contact us today at ruth@shanantechnology.com or 86 13827282272 to learn how Shanan Technology can support your food safety program.

In recent years, consumers have become increasingly concerned about food safety, especially in natural and minimally processed products such as fruits and dried fruits. Manufacturers are therefore seeking more advanced inspection technologies to ensure product purity, enhance production efficiency, and comply with international export standards.   Challenges with Metal Detection Traditional metal detectors are widely used in the food industry, but they have clear limitations when applied to fruits and dried fruits. Moisture and mineral interference: Fresh and dried fruits often contain natural moisture, sugar, and minerals that create product effects, reducing metal detection sensitivity. Limited detection range: Metal detectors can only identify metallic contaminants (Fe, Non-Fe, SUS) and cannot detect non-metallic foreign objects such as glass, stones, or hard plastic. Packaging restrictions: Many dried fruits use metalized film or aluminum foil packaging, which interferes with metal detection.   Benefits of X-ray Inspection X-ray inspection systems overcome these challenges and provide a comprehensive solution for fruit and dried fruit processing lines. They can detect a wide range of foreign bodies regardless of moisture or packaging material. Key advantages include: Detects both metallic and non-metallic foreign objects such as glass, stones, bones, and hard plastic. Stable and consistent performance in detecting loose, sticky, or irregularly shaped fruits. Applicable for both bulk inspection and packaged products. High-resolution imaging ensures accurate rejection of contaminated items.   Ensuring Consistent Quality and Compliance By integrating X-ray inspection, manufacturers can significantly reduce product recalls and customer complaints, while meeting international standards such as HACCP, ISO22000, and BRC. This technology helps ensure that every batch leaving the factory is safe, clean, and of consistent quality.   About Shan’an Technology With over 15 years of experience, Guangdong Shan’an Technology Co., Ltd. specializes in providing intelligent inspection and weighing solutions for the food industry. Through continuous innovation and practical experience, Shan’an Technology remains committed to advancing food safety inspection systems that meet the evolving needs of global manufacturers.   WeChat/WhatsApp：86 13827282272 Contact us: Ruth@shanantechnology.com Website: www.foodgrademetaldetector.com