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Views: 0 Author: Site Editor Publish Time: 2026-05-12 Origin: Site
Metal contamination is one of the most serious risks in food production. A single contaminated product can lead to costly recalls, damaged brand reputation, and potential liability. For bakeries, frozen food producers, seafood processors, and other food manufacturers, reliable metal detection is not optional—it is essential.
The HM Series Metal Detector delivers high-sensitivity detection for ferrous and non-ferrous metals, with strong inhibition capability for product effects common in seafood, frozen food, and pickled products. Available in multiple tunnel sizes to accommodate different product heights and widths.
This metal detector is designed for inline inspection of food products as they move along the production line. It detects ferrous and non-ferrous metal contaminants, including iron, stainless steel, and other metals, triggering an alert or rejection mechanism when contamination is found.
Key features across all models:
Adjustable sensitivity for ferrous and non-ferrous metals separately
Two-way LED display for signal intensity
Strong inhibition for product effects
Quick detachable stainless steel frame
Water-resistant construction
Model | Sensitivity Fe (mm) | Sensitivity Sus (mm) | Tunnel Height (mm) | Tunnel Width (mm) | Max Load | Power |
|---|---|---|---|---|---|---|
4012 | 0.8 | 1.0 | 120 | 400 | 15 kg | 220V |
4015 | 0.8 | 1.0 | 150 | 400 | 15 kg | 220V |
4023 | 1.0 | 1.2 | 230 | 400 | 15 kg | 220V |
4028 | 1.2 | 1.5 | 280 | 400 | 50 kg | 220V/380V |
5020 | 1.0 | 1.2 | 200 | 500 | 50 kg | 220V/380V |
5025 | 1.2 | 1.5 | 250 | 500 | 50 kg | 220V/380V |
5030 | 1.5 | 2.0 | 300 | 500 | 50 kg | 220V/380V |
5041 | 1.8 | 2.5 | 410 | 500 | 50 kg | 220V/380V |
Different metals have different magnetic properties. Ferrous metals (iron, steel) are strongly magnetic and easier to detect. Non-ferrous metals (stainless steel, aluminum, copper) are less magnetic and require higher sensitivity.
This metal detector allows separate sensitivity adjustment for ferrous and non-ferrous metals. Operators can fine-tune detection levels for each type, optimizing performance for their specific products and contamination risks.
The two-way LED display shows signal intensity for ferrous and non-ferrous metals separately. This feature provides:
Clear visual feedback – Operators see signal strength at a glance
Quick identification – Easy to tell which type of metal triggered an alert
Troubleshooting assistance – Helps identify false positives versus actual contamination
Simple operation – Minimal training required
Some products naturally interfere with metal detection. Seafood has high salt content. Frozen products have moisture and ice crystals. Pickled products are acidic and conductive.
These product effects can cause false alarms or reduce detection sensitivity. This metal detector features strong inhibition capability that suppresses these product effects, ensuring reliable detection even with challenging products:
Seafood – High salt and moisture content
Frozen food – Ice crystals and temperature variations
Pickled products – Acidity and conductivity
Bakery products – Moisture, salt, and density variations
Industry | Application |
|---|---|
Bakeries | Detecting metal in bread, buns, pastries, cookies |
Frozen food producers | Inspecting frozen dumplings, buns, seafood, vegetables |
Seafood processors | Checking fresh and frozen fish, shrimp, shellfish |
Meat processors | Detecting metal in ground meat, sausages, patties |
Pickled products | Inspecting pickles, olives, sauerkraut, kimchi |
Confectionery | Checking candies, chocolates, gum |
Snack food | Inspecting chips, crackers, nuts |
Non-food industries | Toys, clothing, plastic, rubber |
Detection sensitivity is measured in a no-load condition using standard test pieces passed over the conveyor belt surface. Actual detection sensitivity will vary based on:
Product type and composition
Product shape and size
Environmental factors
Conveyor speed
For optimal results, product testing is recommended before final installation.
Consideration | Recommendation |
|---|---|
Product height | Choose tunnel height at least 20mm taller than tallest product |
Product width | Choose tunnel width at least 50mm wider than widest product |
Product weight | Choose model with appropriate maximum load (15kg or 50kg) |
Sensitivity requirement | Smaller tunnel height = higher sensitivity |
Power availability | 220V models for standard, 220V/380V for industrial |
Metal contamination detection is a critical component of any food safety program. The HM Series Metal Detector delivers high sensitivity for ferrous and non-ferrous metals, with strong inhibition for product effects from seafood, frozen food, and pickled products.
With separate sensitivity adjustment, intuitive LED display, quick detachable stainless steel frame, and multiple tunnel sizes, this metal detector is built for demanding food production environments.
Whether you produce baked goods, frozen foods, seafood, or pickled products, this metal detector helps protect your brand and your customers.
Ready to enhance your food safety program? Contact us to discuss your product specifications and find the right model for your production line.
