Types of Industrial Metal Detectors for Quality Control | Samegram
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- Aug 9,2025
Summary
Discover the best industrial metal detectors for non-aluminum packaging, aluminum packaging, and raw materials. Learn how Samegram's advanced solutions ensure product safety and compliance in the food and pharmaceutical industries.
Introduction to Industrial Metal Detectors
In today's manufacturing landscape, ensuring product safety and quality is paramount. Industrial metal detectors play a critical role in quality control by detecting and removing metal contaminants that could compromise product integrity or consumer safety. This is especially crucial in industries like food production, where metal fragments can pose serious health risks.
There are various types of industrial metal detectors, each designed to address specific challenges based on the product being inspected. In this guide, we explore the three main categories of metal detectors used in quality control, as classified on Samegram's website:
1. Metal Detectors for Non-Aluminum Packaging Products
2. Metal Detectors for Aluminum Packaging Products
3. Metal Detectors for Raw Materials
Understanding these categories will help you choose the right metal detection solution for your production line.
Non-aluminum packaging includes materials such as plastic, paper, glass, and cardboard, which do not interfere with metal detection signals. Industrial metal detector machines for these products are designed to identify metal contaminants—such as ferrous, non-ferrous, or stainless steel particles—inside the packaging.
How They Work
These metal detectors typically use balanced coil technology. The system consists of three coils: a central transmitter coil and two receiver coils. When a metal contaminant passes through the detector, it disrupts the electromagnetic field, triggering an alarm or automatic rejection mechanism.
Applications
● Packaged food items like snacks, cereals, and frozen meals
● Pharmaceuticals in plastic or glass containers
● Consumer goods in cardboard boxes
Advantages
● High sensitivity to detect small metal particles
● Versatility across various packaging types
● Seamless integration into existing production lines
Samegram's Solutions
At Samegram, we offer advanced conveyor metal detectors tailored for non-aluminum packaging. Our systems feature multi-frequency technology for enhanced detection accuracy and user-friendly interfaces for easy operation.
Industrial Metal Detector with Conveyors for Aluminum Packaging Products
Aluminum packaging, such as foil trays, cans, and blister packs, presents a unique challenge for metal detection because aluminum is a conductive metal. Standard metal detectors may struggle to differentiate between the packaging and potential contaminants. Therefore, specialized technologies are required.
How They Work
For aluminum packaging, metal detectors often use ferrous-in-foil technology, which is sensitive to ferrous metals while ignoring the aluminum packaging. Alternatively, X-ray inspection systems can be used to detect a wider range of contaminants, including non-metallic ones.
Applications
● Foil-wrapped chocolates or snacks
● Canned foods and beverages
● Pharmaceuticals in aluminum blister packs
Advantages
● Accurate detection of metal contaminants without false alarms from packaging
● Compliance with industry standards for packaged goods
● Protection of brand reputation by ensuring product safety
Samegram's Solutions
Samegram provides specialized metal detectors designed for aluminum packaging, utilizing advanced signal processing to minimize interference. Our systems ensure reliable detection while maintaining high production speeds.
DD-220 is a food conveyor metal detector designed for aluminum foil packaging,with high sensitivity and easy integration.
Categories: Metal Detector
Brand: SameGram
Model: DD-220
Passing height: 300 (customizable)
Passing width: 100;120;150;200;300;350;400
Standard detection sensitivity: magnetic ball 0.6; 0.8; 1.0; 1.2; 1.5; 2.0; 2.5; 3.0
Standard detection sensitivity: stainless steel bal 2.5; 3.0; 3.0; 3.5; 3.5; 3.5; 4.0; 4.0
Belt speed: 27 m/min
Body size: 1400×750×1100mm
Metal Detectors for Raw Materials
Inspecting raw materials before they enter the production process is essential for preventing contamination early on. Metal detectors for raw materials are built to handle bulk goods, liquids, and other unpackaged items.
How They Work
Depending on the material, different systems are used:
● Pipeline metal detectors for liquids and slurries
● Gravity fall metal detectors for free-flowing solids like grains or powders
● Conveyor systems for larger bulk items
These detectors identify metal contaminants and typically integrate with rejection mechanisms to remove tainted materials.
Applications
● Inspecting flour, sugar, or spices in food production
● Checking pharmaceutical powders or granules
● Screening mining or recycling materials
Advantages
● Early detection reduces the risk of contaminants in final products
● Protects processing equipment from damage
● Ensures the purity of raw materials
Samegram's Solutions
Samegram offers robust metal detection systems for raw materials, including pipeline and gravity fall detectors. Our solutions are designed for high throughput and durability in demanding environments.
HC-700 gravity fall metal separator offers precise, hygienic, and sealed metal removal for food and pharma use.
Categories: Metal Detector
Brand: SameGram
Model: HC-700
Feeding method: Free-fall detection of raw materials
Temperature Environment: -8 to 80 degrees
Part in contact with raw materials: Nylon, stainless steel, aluminum
Processing volume: 700-800kg/hr
Compressed air: 3~6bar, 8mmΦ
Gas consumption: 0.4 liters per separation action
Conclusion
Selecting the appropriate type of industrial metal detector is crucial for effective quality control. Whether you're dealing with non-aluminum packaging, aluminum packaging, or raw materials, understanding the specific requirements of your production line will help you choose the right solution.
At Samegram, we have decades of experience in providing tailored metal detection systems that meet the highest industry standards. Our commitment to innovation and customer support ensures that you can rely on our products to protect your brand and consumers.
Contact us today to learn more about how Samegram can enhance your quality control processes with our advanced metal detectors.