Ideal for Heavy Product Flows
MPI Filter Bag Magnets efficiently capture ferrous metal before it reaches the bag filter, reducing filter clogging and extending filter life. By installing a high-performance rare earth filter bag magnet, companies save time and money by decreasing the frequency of filter replacements.
With over 10,000 gauss on product contact surfaces, MPI’s rare earth magnetic circuit outperforms ceramic and alnico designs, effectively trapping tramp metal that can plug or tear filter bags.
Filter Bag Magnets units are durable and easy to install, featuring 316 stainless steel, a fully welded liquid-tight design, and a full-length magnetic tube for maximum retention. A four-clover handle grip ensures proper positioning, while a nonmetallic stripper simplifies cleaning.
This magnetic filtration system allows fluids to flow through a powerful magnetic field, capturing ferrous contaminants before they reach sensitive components. Once removed and cleaned, the magnetic tube is reusable, reducing waste.
Magnetic filtration is widely used in industries such as automotive, pharmaceuticals, food processing, and machining, effectively removing iron particles from liquids, oils, coolants, and slurries to protect equipment and improve product quality.
Benefits of the Filter Bag Magnets From Magnetic Products, Inc
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Extended Filter Life
Captures ferrous contaminants before they reach the filter bag, reducing clogging and prolonging usability.
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Superior Magnetic Performance
High-performance rare earth magnetic circuit generates over 10,000 gauss for maximum tramp metal retention, outperforming ceramic and alnico designs.
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Cost Savings
Reduces the frequency of filter bag replacements, lowering maintenance and operational costs.
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Liquid-Tight, Fully Welded Design
Prevents water ingress that could damage the magnet, ensuring long-term durability.
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Full-Length Magnetic Tube
Maximizes metal retention and enhances filtration efficiency.
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Durable, Heavy-Wall Construction
Built with a high-strength stainless steel tube, designed to withstand harsh industrial environments.
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Easy Maintenance
Includes a nonmetallic stripper for quick and effortless cleaning of the magnetic tube.
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Versatile & Customizable
Available in multiple designs to meet various budget and performance needs, with custom sizes shipped in as little as 24 hours.
Filter Bag Magnets Product Details
MPI Filter Bag Magnets (FBM Series) provide highly effective magnetic filtration, efficiently capturing fine ferrous contaminants before they reach the bag filter. By integrating high-intensity rare earth magnets into the filtration system, MPI Filter Bag Magnets help maintain cleaner fluids, extend filter life, and reduce maintenance costs.
Step-by-Step Filtration Process
Placement
- The magnetic rod is inserted directly into the filter bag within the filter housing.
- Positioned in the fluid flow path, the magnet effectively attracts and captures ferrous metal particles suspended in the liquid.
- Protective bumpers prevent damage to the filter bag while ensuring proper positioning.
Magnetic Contaminant Capture
- As the liquid flows around the powerful rare earth magnetic field, ferrous contaminants—including fine metal particles, swarf, and debris—are attracted to the magnetic tube.
- These contaminants remain securely trapped, preventing filter bag clogging and premature wear.
- Unlike conventional filter media, MPI Filter Bag Magnets are not particle-size sensitive, capturing even sub-micron-sized metal particles that traditional filters might miss.
Effortless Cleaning & Reusability
- Once the magnet reaches capacity, it can be easily removed from the filter housing for cleaning.
- A nonmetallic stripper allows for quick removal of the collected ferrous particles.
- After cleaning, the magnetic tube is reinserted, ready to continue providing high-efficiency filtration.
Key Benefits
- Extended Filter Life – Reduces metal buildup on filter bags, minimizing replacements and maintenance costs.
- Improved Filtration Efficiency – Captures fine ferrous contaminants before they clog filter material.
- Minimal Maintenance Downtime – Easy removal and cleaning without disrupting fluid flow.
- Eco-Friendly & Cost-Effective – Eliminates disposable filters and reduces waste.
- High-Durability Design – Built with 316 stainless steel, liquid-tight, and resistant to wear.
By integrating MPI Filter Bag Magnets into filtration systems, industries can enhance fluid cleanliness, protect sensitive equipment, and boost operational efficiency across various applications, including automotive, pharmaceuticals, food processing, and machining.
Filter Bag Magnets Specification Table

US Customary Units
FILTER BAG MAGNET MODEL # | FILTER SIZE | (A) OVERALL LENGTH (IN) | APPROX. WEIGHT (LBS) |
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FBM-112-REN | 12 | 11.825 | 2.24 |
FBM-118-REN | 18 | 17.825 | 3.37 |
FBM-124-REN | 24 | 23.825 | 4.49 |
Filter Bag Magnets Installations & Variations

Saturated Filter Bag Magnet from Swarf Flank Milling Application

Large Quantity of Filter Bag Magnet Ordered by Large Automotive OEM

Filter Bag Magnet with Iron Contaminants from Pre-Treatment Line in Paint Facility