Home » MPI Products Inc » Products » Magnetic Separation and Metal Sorting Solutions » Electronic Inspection and Metal Detection » Application Specific Metal Detectors
Application Specific Metal Detectors
MPI’s Application Specific Metal Detectors are purpose-built solutions engineered to meet the unique challenges of specialized production environments. These detectors are tailored for operations where standard metal detection systems may struggle due to product effects, space constraints, extreme temperatures, or highly customized material flows. Whether dealing with wet, conductive, high-salt, or high-acid products—or inspecting within confined machinery—MPI develops detection systems that balance precision, adaptability, and reliability.
Designed in collaboration with customers and supported by MPI’s engineering expertise, these detectors are available in a wide range of configurations, including in-line, compact, high-speed, high-temperature, and sanitary options. Advanced signal processing and customizable controls ensure optimal sensitivity while minimizing false rejects. Ideal for industries such as food, pharmaceutical, plastics, textiles, and recycling, MPI’s application-specific detectors deliver consistent contaminant detection without compromising product quality or line efficiency.
Liquid Metal Detector
The Liquid Metal Detector is specifically engineered for fluid and paste-like products, including sauces, dairy items, baby food, jams, and liquid pharmaceuticals. Designed for seamless integration into pressure or vacuum pipeline systems, it continuously inspects product flow using a high-sensitivity detection cell that accurately identifies ferrous, non-ferrous, and stainless-steel contaminants. The system's hygienic, stainless-steel design is CIP (Clean-in-Place) compatible, supporting fast, sanitary maintenance with minimal downtime. Its high-pressure capability and compact footprint make it ideal for demanding environments where space is limited, and safety is paramount. This detector ensures consistent product purity while protecting both consumers and processing equipment.
Meat Metal Detector
The compact metal detector is specifically designed for sausage pumps and stuffer machines, enabling real-time inspection of meat emulsions and fillings during processing. Its small size allows for easy installation in tight production spaces without compromising detection performance. Equipped with high-sensitivity sensors, it effectively identifies ferrous, non-ferrous, and stainless-steel contaminants in challenging high-density and high-fat products. Constructed from hygienic, washdown-ready materials, it complies with stringent food safety standards and supports Clean-in-Place (CIP) processes. An integrated reject valve facilitates the swift removal of contaminated products, thus reducing waste and protecting downstream equipment.
Pneumatic Line Metal Detector
The Pneumatic Lines Metal Detector is designed for installation in both vacuum and pressure conveyor pipelines, making it ideal for the inspection of powders, granules, and free-flowing bulk materials in enclosed systems. Commonly used in the food, plastics, chemical, and pharmaceutical industries, this detector continuously monitors product flow and quickly identifies ferrous, non-ferrous, and stainless-steel contaminants. It features a high-speed, automatic reject mechanism that ensures minimal product loss while maintaining system integrity. With a compact, hygienic design and compatibility with Clean-in-Place (CIP) procedures, it supports safe, efficient operation in high-throughput production environments where contamination control is critical.
COMBI Metal Detector
The Metal Detector COMBI is a highly sensitive, multi-segment sensor system specifically engineered for the inspection of wide-format materials such as nonwoven fabrics, transformer boards, paper, and textiles. Its segmented sensor array allows for precise localization of metal contaminants across the full width of the product, enabling targeted rejection that minimizes material loss and maximizes efficiency. Designed for high-speed, continuous processing lines, the COMBI combines durable construction with advanced signal filtering to deliver consistent performance in demanding industrial environments. It is ideal for quality-critical applications where early detection of metal particles ensures product integrity, equipment protection, and industry compliance standards.
Flat Plate Metal Detector
The Flat Plate Metal Detector (FL type) is a high-performance detection sensor designed for installation either beneath or above conveyed materials. Engineered for use in continuous production lines, it provides reliable identification of both magnetic and non-magnetic metal contaminants with exceptional sensitivity. The FL type is ideally suited for applications in fleece, textile, foil, and nonwoven material manufacturing, where early detection of foreign metal objects is essential to maintain product quality and protect downstream equipment. Its flat, low-profile design allows for easy integration into compact machinery layouts, while its robust construction ensures stable performance in high-speed, high-volume operations.
Compatibility Check - Application Specific Metal Detector Comparison
Unique Benefits and Considerations
Industries, Applications and Regulations
For assistance in selecting the most suitable Electro & ElectroPermanent Magnetic Chucks and Controller for your application or for additional customization options, contact Magnetic Products Inc. today to speak with our team of experts!
Industry Type
Industries That Use MPI’s Application Specific Metal Detectors
Each detector is designed for specialized processes across a variety of industries:
Food and Beverage
Meat processing (emulsions, sausages, ground products)
Dairy, sauces, soups, baby food
Bulk dry ingredient handling (spices, flours, sugars)
Pharmaceutical & Nutraceutical
Liquid suspensions, pastes, and fine powders in pipelines
Tablet coating and granulation lines
CIP (Clean-In-Place) production areas
Plastics and Chemical
Granular resins and fine powders conveyed pneumatically
Liquid chemical processing lines
Textile, Paper, and Nonwovens
Inspection of wide sheeted materials like fleece, paper rolls, and textiles
Manufacturing of hygiene products or insulation materials
Processing Application
Typical Applications
Here’s how each detector type fits into specific use cases:
Liquid Metal Detector
Inline inspection of viscous products in pressurized pipelines
Used in food, beverage, baby food, and pharmaceutical processing
Ensures metal-free flow before filling, homogenizing, or packaging
Meat Metal Detector
Mounted on stuffer machines or sausage pumps
Inspects emulsified, fatty meat blends in high-pressure systems
Protects brand integrity and downstream slicing/packaging equipment
Pneumatic Line Metal Detector
Installed in vacuum or pressure pneumatic conveyors
Inspects fine powders, flour, spices, and plastic granulates during air-driven transport
Prevents equipment damage and ensures ingredient purity
COMBI Metal Detector
Multi-segment detection across wide materials like nonwovens, textiles, and paper
Pinpoints exact position of contamination for minimal material rejection
Used in high-speed web or roll production lines
Flat Plate Metal Detector
Mounted above or below conveyors carrying thin materials
Common in fleece, foil, and textile production
Offers non-intrusive inspection in continuous flat-product lines
Materials Processed
These detectors are optimized for:
Liquids and Pastes – Soups, sauces, purees, creams, baby food, slurries
Meat Emulsions – Ground meats, sausage blends, fat-injected proteins
Powders and Granules – Flour, sugar, plastic resin, dry chemicals
Textile Width Goods – Paper, fleece, nonwoven fabrics, and foils
Flat, Thin Conveyed Products – Films, webs, layered materials
Regulations and Requirements
Regulations and Quality Control Requirements
Regulatory Standards
FDA (U.S. Food and Drug Administration) – For food and pharma applications
USDA / FSIS – Required in meat and poultry processing environments
GFSI (BRCGS, SQF, FSSC 22000) – Mandates validated metal detection in HACCP plans
21 CFR Part 11 – Applies to detectors used in pharmaceutical recordkeeping
CE / UL – Safety compliance for electrical and industrial use
EHEDG or 3-A Sanitary Standards – Relevant for hygienic design and CIP systems
Quality Control Practices
Test Calibration – Routine sensitivity checks with certified test spheres (ferrous, non-ferrous, stainless)
Performance Verification – Documentation of reject operation and detection validation
Data Logging and Audit Trails – Required for traceability and regulatory audits
Sanitary Construction – Smooth surfaces, CIP-ready designs, and washdown compatibility
Minimal False Rejects – Product effect compensation and fine-tuned signal processing