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Industrial metal detector for food

Welcome to YUNDU’s professional product category page for industrial inspection solutions. As a trusted food metal detector manufacturer, YUNDU delivers state-of-the-art detection, weighing, and sorting technologies designed to safeguard product integrity, enhance metal detector food safety, and optimize production line efficiency.

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Industrial Metal Detector - Yundu

Inline metal detection for secure foreign body detection

Our advanced systems—including the high-performance food metal detectors, specialized aluminum foil detectors, high-precision x ray metal detector food industry units, and intelligent checkweighers—are engineered to meet rigorous international standards (IP65, HACCP, and IFS) across food processing, pharmaceuticals, daily chemicals, electronics, and packaging industries.

Comprehensive Industrial Inspection Solutions

Ensuring absolute product safety and compliance requires robust multi-stage inspection. YUNDU integrates cutting-edge American core technology into our systems, providing unmatched detection precision for both magnetic and non-magnetic metal impurities (ferrous, non-ferrous, and stainless steel) alongside precise dynamic weight verification.

Metal Detector - Yundu

Food Metal Detector

Metal Detector - Yundu-2

Metal Detector for Aluminum Foil-Packaged Products

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Core Product Categories & Systems

Featuring American technology and a control unit imported from the U.S., this system offers unparalleled detection accuracy and superior performance.

It is designed for the detection of metallic contaminants in products across the food, pharmaceutical, and chemical industries, and is suitable for both bulk materials and packaged goods.

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Standard Conveyor Food Metal Detectors

Designed for general-purpose applications, our standard conveyor systems are essential for detecting metal contaminants in packaged and bulk goods.

Core Structure: Consists of three integrated components—a high-sensitivity search head, a robust conveyor system, and an efficient rejection unit.

Industry Applications: Widely utilized as a reliable metal detector for food processing, pharmaceuticals, baked goods, snacks, and meat production lines.

Key Advantages: Features advanced product tracking to automatically compensate for product effect variations, ensuring zero false rejects while maintaining high-speed metal detector food processing standards.

Standard Metal Detector

More Information

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Aluminum Foil Metal Detectors

Traditional metal detectors struggle with products packaged in metallized or aluminum foil films due to the conductive nature of the packaging. YUNDU’s specialized aluminum foil metal detectors overcome this challenge.

  • Applications: Ideal for pharmaceutical blister packs with aluminum foil backing, milk powder foil bags, and chocolate products with metallic coatings.

  • Performance: Delivers exceptional sensitivity to ferrous and non-ferrous contaminants even inside conductive packaging environments.

Metal Detector - Yundu-3
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X-Ray Inspection Systems

Our state-of-the-art X-ray technology goes beyond metal detection to provide comprehensive internal structural analysis of products.

  • Applications:

    • Chicken and meat processing for residual bones.

    • Packaged food for dense foreign objects (glass, stone, high-density plastics).

    • Bottled and canned beverages for 360-degree zero-dead-zone inspection.

    • Liquid and fluid foods (ketchup, chocolate, sauces) for micro-contaminants.

    • Bulk materials (such as nuts and grains) to detect internal insect damage, hollows, and mold.

X-ray Foreign Object Detection Machine - Food Inspection

X-ray foreign object inspection systems are widely used in the food, pharmaceutical, and chemical industries to detect both metallic and non-metallic foreign objects—a capability particularly valuable for products packaged in aluminum foil or metal containers.

These systems not only provide highly sensitive detection of various foreign objects—such as metal, bone, glass, ceramic, stone, hard rubber, and hard plastic—but also offer excellent product integrity inspection, identifying defects, missing components, and other product flaws.

Learn more: X-Ray Inspection Systems

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Difficulty LevelDifficulty RatingCategory / Metal TypeProduct Examples / Typical Metal SourcesDetection Chart Type
High Moisture / High Salt Products
High (★★★)
Meat ProductsFresh meat, frozen meat, thawed meat, ham, sausage, meatballs, cured meatDifficult Product Chart
Seafood ProductsFish fillets, shrimp, crab meat, shellfish, surimi products, frozen seafoodDifficult Product Chart
Pickled ProductsPickles, kimchi, salted fish, preserved meat, sauce meat, brined foodsDifficult Product Chart
Dairy ProductsCheese blocks, shredded cheese, yogurt, butter, creamDifficult Product Chart
Sauces / Semi-FluidsJam, ketchup, meat sauce, chocolate sauce, salad dressing, baby foodDifficult Product Chart
Frozen FoodsQuick-frozen dumplings, sweet glutinous rice balls, ice cream, frozen fries, prepared mealsDifficult Product Chart
Bakery / High-Temp ProductsFreshly baked bread, cooling pastriesDifficult Product Chart
Stainless Steel304 Stainless SteelFood contact equipment, conveyor belts, containersMetal Contaminant Chart
316 Stainless SteelCorrosion-resistant equipment, pharmaceutical-grade machineryMetal Contaminant Chart
430 Stainless SteelSelect machine components (magnetic)Metal Contaminant Chart
Metal Film / Aluminum Packaging
Medium (★★☆)
Aluminum Foil Pouch PackagingMilk powder, coffee powder, seasonings, pet foodDifficult Product Chart
Aluminized Film PackagingSnack foods, chocolate, instant noodles, tea leavesDifficult Product Chart
Metallic Composite PackagingReady-to-eat meals, instant foods, vacuum-packed meat productsDifficult Product Chart
Non-Ferrous MetalsCopperWire fragments, electrical components, pipe fittingsMetal Contaminant Chart
AluminumPackaging material fragments, foil shavings, equipment partsMetal Contaminant Chart
BrassValve fragments, pipe fittingsMetal Contaminant Chart
LeadSolder residue, counterweightsMetal Contaminant Chart
TinSoldering materials, inner lining of cansMetal Contaminant Chart
ZincGalvanized component wear debrisMetal Contaminant Chart
Gold / SilverElectronic components, decorative materialsMetal Contaminant Chart
Other Low-Difficulty Products
Low (★☆☆)
High-Iron Content ProductsCereals, oatmeal, whole wheat flourDifficult Product Chart
High-Sugar ProductsCandies, chocolate, preserved fruitsDifficult Product Chart
Temperature Fluctuating ProductsThawing meat, cooling baked goodsDifficult Product Chart
General Ferrous MetalsIronEquipment wear debris, screws, nuts, tool fragmentsMetal Contaminant Chart
SteelCutting blades, conveyor belt steel wiresMetal Contaminant Chart
Cast IronMachinery structure fragmentsMetal Contaminant Chart

High-Precision Checkweighers (Dynamic Weighing System)

Integrated seamlessly with our metal detection units, YUNDU checkweighers ensure that every package leaves the production line with the correct weight.

  • Smart Operation: Powered by a user-friendly Weinview color human-machine interface with full smart design and easy-to-clean removable conveyor belts.

  • Speed & Precision: Utilizes high-precision digital sensors with rapid sampling rates, driven by variable frequency motor control.

  • Data Management: Built-in statistical reporting generates Excel-format data stored via USB for over a year, supporting up to 2,000 storable product recipes for quick switching.

Multi-Grade Sorting & Rejection Systems

VFFS packaging of powder, granules, and liquid products in flexible bags

Combining metal detection, X-ray scanning, and checkweighing, our multi-grade sorting and rejection systems automatically divert contaminated or underweight items from the production line safely and efficiently.

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YUNDU Industrial Inspection Systems with Any Questions

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YUNDU Industrial Inspection Systems Video

Key Technical Advantages of YUNDU Systems

High Precision

Ensure that testing for every product is consistent and accurate, thereby enhancing the level of quality control.

American Core Technology

Control units imported from the United States deliver superior detection sensitivity, computational stability, and long-term reliability.

Flexible Rejection & Control

Upon detecting impurities, the controller triggers synchronized stopping mechanisms or high-speed pneumatic rejection flippers/jets.

Robust Stainless Steel Architecture

Built with heavy-duty stainless steel frames to guarantee vibration-free stability and extended operational lifespans in harsh industrial environments.

Hygienic Tool-Free Design

Engineered to meet strict food grade metal detectors hygiene codes. Table surfaces and conveyor belts can be disassembled in seconds without tools for thorough cleaning.

Intelligent Self-Learning

When creating a new product recipe, the system utilizes an automatic self-learning function to configure optimal parameters without manual trial and error.

ProductTest sample Examples

Detection of residual bones in chicken meat
Vacuum sealed almonds and cashews in clear bags for preservation.
Alu PVC blister packaging with transparent PVC cavities and aluminum foil lidding

Frequently Asked Questions (FAQs)

A standard food industry metal detector creates an electromagnetic field using transmitter coils. When a metal contaminant (ferrous, non-ferrous, or stainless steel) passes through this field, it disturbs the electromagnetic balance, which is instantly sensed by receiver coils and triggers the rejection mechanism.

High-moisture products (like fresh meat or sauces) and metallized packaging create a “product effect” that can cause false triggers. Advanced food metal detectors from YUNDU use multi-frequency filtering and automated product tracking algorithms to neutralize product signals while maintaining high sensitivity to actual metal contaminants.

While standard metal detectors find metallic objects, an x ray metal detector food industry solution can identify non-metallic contaminants such as glass, bone fragments, stones, and dense plastics, providing total quality assurance for food safety compliance.

YUNDU offers combination systems where the metal detector for food processing and the checkweigher share a unified frame and control interface, saving valuable floor space while inspecting both weight compliance and metal contamination simultaneously.

Our machines are built to IP65 ratings (with higher protection optional) and strictly comply with international food safety standards including HACCP, IFS, and GMP guidelines, making them ideal for any food industry metal detector requirement.

Yes. YUNDU systems are engineered to detect all types of metallic impurities, including iron, copper, aluminum, lead, brass, and stainless steel, ensuring comprehensive protection across all food manufacturing metal detector applications.

The self-learning feature allows operators to introduce a new product to the machine, which then automatically analyzes the product’s electrical characteristics and sets optimal operating parameters in seconds, minimizing setup downtime.

Thanks to our tool-free quick-release conveyor design and robust stainless steel construction, routine cleaning and basic maintenance take only minutes, significantly reducing operational downtime and lowering total cost of ownership.

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If you’d prefer, a representative from Yundu can contact you directly. Please provide the information below and a member of our sales team will contact you shortly. * fields are required.