Quality Food Metal Detector & Food Grade Metal Detector manufacturer

Puffed snacks such as potato chips, shrimp crackers, and corn sticks are loved by consumers worldwide for their crispy texture and rich flavors. However, during mass production, small metal fragments from worn machine parts, broken wires, or packaging debris can accidentally enter the product. This not only risks consumer safety but can also result in costly recalls and brand damage.   Key Challenges in Detection: 1.Lightweight, Irregular Shapes: Puffed products are loose and airy, making them more sensitive to conveyor belt vibrations, which can cause unstable detection signals. 2.Packaging Material Interference: Many puffed snacks are packaged in metallized film or aluminum foil bags, which can cause false signals in traditional metal detectors.   Recommended Solutions: · For non-metallized packaging: Use a high-sensitivity, dual-frequency metal detector capable of detecting down to φ0.4 mm stainless steel spheres, φ0.3 mm ferrous, and φ0.5 mm non-ferrous metals. · For metallized or aluminum foil packaging: Switch to an X-ray inspection system that can detect not only metals but also glass, stones, and hard plastics without being affected by the packaging material. · Install the detection system after the packaging machine to ensure 100% inspection of finished products before shipment. With over 15 years of manufacturing experience, Guangdong Shan’an Technology Co., Ltd. offers complete metal detection and X-ray inspection solutions tailored to snack food production lines, ensuring your brand meets the highest global food safety standards.     For expert advice and solutions, contact us today: Guangdong Shanan Technology Co., Ltd. www.foodgrademetaldetector.com ruth@shanantechnology.com Whatsapp/Wechat: +86 138 2728 2272    

In the food, cosmetics, and pharmaceutical industries, we often hear about metal detectors and X-ray inspection systems used to detect foreign objects. But one small, common contaminant is often overlooked — human hair. So, can hair be detected by inspection machines? The honest answer is: rarely, and only in specific conditions. This article explains why hair is so difficult to detect, what current technology can (and cannot) do, and how manufacturers can manage this quality control challenge.  Why Is Hair So Hard to Detect? Despite being a frequent complaint from consumers, hair is one of the most difficult contaminants to detect during production. Here’s why: Non-metallic → Metal detectors can't pick it up Extremely low density → X-ray scanners can’t image it Ultra-lightweight → Weighing machines can’t detect changes Irregular and camouflaged → Hard for vision systems to spot, especially if it blends in In short: Hair is not metal, not dense, not heavy, and not obvious.  Can Detection Devices Catch Hair? Detection Method Working Principle Can It Detect Hair? Notes Metal Detector Electromagnetic sensing  No Only detects ferrous and non-ferrous metals X-ray Inspection Machine Density-based imaging  No Hair is too low-density to image Vision System (AI) Camera + Algorithm Analysis  Sometimes Limited to surface hair only Manual Visual Inspection Human eye  Yes Labor-intensive and prone to fatigue  How Can Manufacturers Minimize Hair Contamination? While no machine today can fully automate the detection of hair, manufacturers can reduce risks through a combination of prevention, control, and layered inspection:  Personnel hygiene: Hairnets, gloves, gowning procedures  Cleanroom standards: Air filtration, dust control, controlled environments  Manual checks: Visual inspection before and after packaging  Device support: Use X-ray and metal detectors for other foreign objects  AI visual systems: Can detect visible hair on product surfaces  Summary: Key Takeaways Hair is one of the most difficult contaminants to detect in food and cosmetics No current machine can guarantee 100% hair detection The most effective solution is prevention and multi-step control  Expert Advice from Shanan Technology With over 15 years of experience in inspection systems, Guangdong Shanan Technology understands your quality challenges. While hair detection remains difficult, we offer reliable X-ray machines, metal detectors, and tailored consultation to help you minimize foreign body risks.  For expert advice and solutions, contact us today: Guangdong Shanan Technology Co., Ltd.  www.foodgrademetaldetector.com  ruth@shanantechnology.com  Whatsapp/Wechat: +86 138 2728 2272

Ensuring food safety starts at the source. Cocoa beans, as the core raw material for chocolate and other cocoa-based products, are highly susceptible to foreign body contamination during harvesting, drying, transport, and storage. Common contaminants include stones, metal fragments, glass, and ceramics—posing a significant risk for manufacturers and exporters. Client Background Our client, based in West Africa, is a major exporter of cocoa beans with an annual processing volume exceeding 2,000 tons. Their main markets include Europe and South America, where food safety regulations are especially strict. Although they had previously relied on manual sorting and magnetic separation, they struggled to eliminate non-metallic foreign bodies such as small stones and glass fragments. Solution To address this challenge, we recommended our SA-X Series X-ray Inspection Machine, designed to detect a wide range of dense foreign objects in bulk cocoa beans. The system is equipped with a high-resolution X-ray generator and advanced imaging software, capable of detecting: Metal fragments (iron, aluminum, stainless steel, etc.) Stones Glass pieces Ceramic particles Hard plastic debris To match the client’s bulk material handling process, we customized the machine with a sealed protective housing and automatic rejection system, ensuring efficient inline inspection without interrupting the production flow. Client Feedback After installation and testing, the client reported a significant improvement in detection accuracy, especially for hard-to-identify non-metallic contaminants. The rejection system reliably removed defective batches, reducing product complaints and minimizing risk during third-party inspections. “The X-ray system gives us greater confidence in our quality control. It has helped us pass stringent export inspections more easily, especially for the EU market.” Application Benefits Wide detection capability: Detects both metallic and non-metallic dense contaminants Non-contact inspection: No damage or contamination to cocoa beans Flexible for raw materials: Suitable for both bulk and packaged cocoa Improved compliance: Helps meet international food safety standards If you are looking for a foreign body detection solution for cocoa, nuts, or other raw materials, feel free to contact us for more information or a free sample test. Whatsapp/Wechat: +86 138 2728 2272 Email: ruth@shanantechnology.com Website: www.foodgrademetaldetector.com