Tube Magnet

MPI magnetic tubes provide an efficient, cost-effective solution for removing ferrous tramp metal contaminants from product streams. These tubes are strategically placed within processing lines to capture, isolate, and retain metal particles, preventing equipment damage and ensuring product purity.

At its core, an MPI magnetic tube is designed to capture and retain unwanted ferrous metal contaminants, protecting your product and process. What sets MPI apart is our commitment to providing the RIGHT solution—balancing strength, durability, and cost for your specific application. Contact an MPI magnet professional today to find the best fit for your production line.

Magnetic Tube Placement & Installation

• MPI magnetic tubes are 1” in diameter and are typically installed within a housing, using tapped end holes (1/4"-20) for secure attachment.
• These tubes can be used individually or in multi-row configurations, depending on the level of protection required.
• The product stream flows around the magnetic tubes, allowing the embedded high-intensity Neodymium magnets to attract and capture ferrous metal contaminants.

Metal Capture & Retention Process

 

• As material moves through the system, the powerful magnetic field draws in and holds ferrous contaminants, including fine metal particles, metal shavings, and larger tramp metal debris.
• The captured contaminants migrate to the underside of the tube, which prevents "wash-off"—ensuring metals stay securely attached even in high-flow environments.
• This process prevents metal recontamination and ensures efficient separation.

Easy Cleaning & Maintenance

• MPI magnetic tubes are designed for quick removal and easy cleaning to maintain maximum performance.
• Cleaning is performed by simply wiping away the accumulated ferrous material or using a quick-release mechanism in certain configurations.
• This simple cleaning process minimizes downtime while ensuring continuous operation.

Choosing the Right Magnetic Tube for Your Application

At MPI, we understand that a one-size-fits-all approach doesn’t work when it comes to magnetic separation. That’s why we offer multiple tube designs to help balance performance, cost, and durability for your specific needs. Key factors affecting magnetic tube selection include:

• Raw material strength (Neodymium, Samarium Cobalt, or Ceramic)
• Protective coatings (non-stick and abrasion-resistant options)
• Wall thickness (thinner walls enhance pull strength but may reduce durability)
• Pole piece size and magnetic circuit characteristics

MPI’s magnet professionals are available to help customers select the best solution for their unique processing requirements.

The Hi-G Magnetic Tube – Strength & Durability Without Compromise

For applications demanding both high pull strength and long-term durability, MPI has developed the Hi-G Magnetic Tube.

• Unlike standard thin-walled tubes, the Hi-G Tube offers high pull values comparable to the “strongest on the market” non-thin-walled tubes.
• It provides enhanced durability, ensuring longevity in demanding applications without compromising magnetic strength.
• This exclusive MPI technology bridges the gap between performance and durability, giving customers a reliable, long-lasting solution.

Proudly Manufactured in the USA

• MPI magnetic tubes are engineered and manufactured in Highland, MI, under strict quality control guidelines.
• They meet the highest industry standards for durability, sanitary design, and magnetic performance.

Applications & Industries Served

MPI magnetic tubes are widely used across food processing, pharmaceutical, plastics, recycling, and industrial manufacturing industries. Common applications include:

• Removing ferrous contaminants from dry bulk materials such as powders, granules, and pellets.
• Capturing metal fines from liquid or slurry-based products.
• Preventing wear-related metal contamination, caused by metal-on-metal contact within processing equipment.
• Protecting critical downstream machinery, such as mills, grinders, and extruders.

The Science Behind Neodymium Magnets

MPI magnetic tubes utilize high-strength Neodymium Rare Earth Magnets, composed of a mixture of:

• Neodymium (Nd)
• Iron (Fe)
• Boron (B)
• Cobalt (Co)
• Dysprosium (Dy) & Praseodymium (Pr), which enhance temperature resistance

The Maximum Energy Product (MGOe) determines a magnet’s strength. Currently, 52 MGOe is the highest commercial-grade energy product available, ensuring maximum performance in MPI’s magnetic tubes.