The JL IMD-I Seafood Electronic Metal Detector is a purpose-built food safety inspection system designed for continuous, high-speed detection of metal contaminants in seafood processing environments. Built from food-grade 304 stainless steel and engineered for 24/7 non-stop operation, it provides reliable protection against ferrous, non-ferrous, and stainless steel metals — including iron, copper, aluminum, and Sus304 — at every stage of the production line.

Whether you operate a fish fillet processing plant, shrimp production facility, or a frozen seafood packaging line, this industrial metal detector delivers the sensitivity, durability, and compliance-readiness your operation demands.

 

Why Metal Detection Matters in Seafood Processing

Metal contamination in food products is one of the leading causes of product recalls, regulatory penalties, and brand damage in the seafood industry. A single contaminated batch can trigger HACCP non-compliance flags, FDA intervention, and irreversible consumer trust issues.

 

The JL IMD-I serves as a critical control point (CCP) in your HACCP plan — automatically identifying and rejecting contaminated product before it reaches packaging, distribution, or the end consumer. It is equally effective for raw, chilled, and frozen seafood formats.

 

주요 기능

1. Food-Grade 304 Stainless Steel Construction

The entire machine frame and search coil housing are fabricated from 304 stainless steel, offering excellent resistance to corrosion, moisture, and the chemical washdowns common in seafood processing facilities. The washdown-ready build meets the hygienic standards expected in food-grade manufacturing environments.

 

2. Advanced Dual-Channel Detection Technology

Using a dual-channel electromagnetic system combined with DSP (Digital Signal Processing) and MCU (Microcontroller Unit) signal management, the IMD-I achieves precise detection of multiple metal types simultaneously. This configuration minimises false triggers caused by product signal interference, a common issue in wet or conductive food environments like fresh seafood.

 

3. High Detection Sensitivity

The system meets the following minimum detection thresholds under standard conditions:

•       Fe (ferrous): ≥ 1.2 mm sphere equivalent
•       Non-Fe (non-ferrous, e.g. copper, aluminium): ≥ 2.0 mm sphere equivalent
•       Sus304 (stainless steel): ≥ 2.5–3.0 mm sphere equivalent

These sensitivity ratings make it suitable for detecting fine metallic foreign bodies that standard detectors miss, particularly in high-conductivity seafood products.

 

4. Automatic Product Learning and Adjustment

The built-in learning function allows the machine to automatically calibrate for product effect compensation. When running a new seafood product, the system samples the product’s natural electromagnetic signature and adjusts its detection baseline accordingly. This significantly reduces false alarms without compromising on sensitivity — a critical balance in high-throughput seafood lines.

5. Multi-Product Memory Storage

With the ability to store up to 52 product profiles in memory, operators can switch between different seafood products — whole fish, fillets, shrimp, crab, shellfish, and more — without recalibrating from scratch each time. Each stored profile retains its optimised detection parameters, ensuring consistent performance across product changeovers.

6. Automatic Rejection System

When metal contamination is detected, the system triggers an audible alarm and automatically stops the conveyor belt to isolate the affected product. This automatic rejection mechanism prevents contaminated product from advancing to downstream packaging or distribution without requiring manual intervention at the moment of detection.

7. Waterproof and Shock-Proof Design

The IMD-I is engineered for the demanding physical conditions of food processing facilities. Its enclosure and electronics are protected against water ingress, dust, vibration, and mechanical shock — making it suitable for high-temperature and high-humidity environments as well as cold-room or frozen seafood applications.

8. Continuous 24/7 Industrial Operation

Designed for uninterrupted production environments, the system is rated for continuous 24-hour operation. There is no mandatory rest cycle or thermal shutdown, making it ideal for high-volume seafood processing operations running multiple shifts per day.

9. User-Friendly LCD Interface

The integrated LCD display provides operators with real-time detection status, product profile selection, sensitivity adjustment, and diagnostic readouts. No specialist training is required to operate or configure the system day-to-day.

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Suitable Applications

The JL IMD-I is suited for inline metal detection across a wide range of seafood and aquatic food processing formats:

• Fresh and chilled fish fillet processing lines
• Frozen seafood packaging and portioning lines
• Shrimp, prawn, and crustacean processing plants
• Crab meat and shellfish production facilities
• Fish paste, surimi, and processed seafood lines
• Mixed seafood ready-meal production environments

 

The system can also be integrated into general food processing lines where metal contamination control is required under HACCP, FDA, or international food safety standards.

 

Food Safety Compliance and Regulatory Alignment

Metal detection at the production level is a mandatory critical control point (CCP) under most food safety management systems. The JL IMD-I supports compliance with:

• HACCP (Hazard Analysis and Critical Control Points) programmes
• BRC Global Food Safety Standards
• IFS (International Featured Standards) Food
• FDA regulations for seafood processing safety
• ISO 22000 food safety management requirements

Implementing an inline metal detector also provides documented traceability and detection records that support food safety audits, reducing exposure to product recalls and regulatory penalties.

Detection Capability Comparison

Metal Type	Detection Threshold	Examples
Ferrous	≥ 1.2 mm	Steel nails, iron fragments
Non-Ferrous	≥ 2.0 mm	Copper, aluminium, lead
스테인리스 스틸	≥ 2.5–3.0 mm	Sus304, processing equipment wear

 

Why Choose the JL IMD-I Seafood Metal Detector

There are several industrial food metal detectors on the market. The JL IMD-I is positioned for seafood-specific processing environments where moisture, temperature variation, and conductive product signals create additional detection challenges. Key differentiators include:

 

• Seafood-specific product effect compensation: reduces false rejects on salty, wet, or fatty seafood
• Full 304 stainless steel frame : no aluminium or painted components that corrode in marine processing environments
• 52-profile memory: practical for facilities running a broad range of seafood SKUs
• DSP + MCU dual-processing : faster signal resolution with lower false alarm rates versus single-processor units
• Conveyor-integrated design:  ready for inline installation without extensive line modification
• Straightforward LCD operation :  minimal downtime for operator training or parameter adjustment

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 기술 사양

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Frequently Asked Questions

Can this detector identify stainless steel contaminants?

Yes. The IMD-I detects Sus304 stainless steel from 2.5 mm, which is particularly important in seafood processing environments where stainless steel tooling and equipment fragments are the most common metallic foreign bodies.

Is the machine suitable for frozen seafood lines?

Yes. The waterproof and shock-proof construction allows operation in cold-room and freezer-adjacent environments. The product learning function also handles the different electromagnetic signatures that frozen seafood produces compared to fresh product.

What happens when metal is detected?

The system triggers an audible alarm and automatically stops the conveyor belt, isolating the contaminated product at the detection point. This allows operators to remove the affected product before the line resumes operation.

How many product profiles can be stored?

The IMD-I stores up to 52 product profiles. Each profile retains the specific sensitivity and product effect settings for a given seafood type, enabling quick and accurate changeover between production runs.

What certifications or compliance standards does it support?

The machine is suitable for integration into HACCP, BRC, IFS, ISO 22000, and FDA-compliant food safety programmes as a critical control point for metal contamination.

Request a Quote or Technical Consultation

For pricing, custom configuration, installation enquiries, or to discuss specific seafood processing line requirements, contact our technical sales team. We provide full pre-sale consultation to match the correct detection system to your production environment, throughput volume, and regulatory compliance obligations.