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Magnetic Separation for Bulk Gravity Applications
Chute Magnets
Chute Magnets are engineered to extract medium to large-sized ferrous tramp iron contaminants from gravity-fed vertical chutes with high-volume product streams, such as those used for grain, chemicals, food, and powders. Available options include Manual Clean Chute Magnets, Quick Clean Chute Magnets, and Self-Clean Chute Magnets.
Drawer Magnets
Drawer Magnets feature tiers of magnetic tubes to eliminate medium and small-sized ferrous tramp metal contaminants. The range includes Manual, Quick, and Self-Clean models, Carbon and Stainless-Steel Drawer Magnets, Continuous Flow Drawer Magnets, large tube drawer magnets, Round Spout Drawer Magnets, Sanitary Toolless Drawer Magnets, and 2-inch Tube Drawer Magnets.
Feeder Magnets
Feeder Magnets are intended to safeguard and regulate the feeding characteristics of free-flowing materials positioned above hammer mills as they enter processing equipment. Magnetic rotary feeders are among the available products. These magnets effectively manage the flow of materials, ensuring optimal operation and protection in processing systems.
Free-Flow Magnets
Free-flow magnets are engineered to capture both large and small tramp metal in high-volume, abrasive, gravity-fed product streams. The Quick Clean Free-Flow Magnets are specifically suited for vertical product streams in the grain and mining sectors, while Self-Clean Free-Flow Magnets effectively collect tramp metal in vertical chutes and feature a pneumatically operated cleaning mechanism for easy maintenance.
Grate and Tube Magnets
Grate Magnets are designed to eliminate medium- and small-sized ferrous tramp metal contaminants from dry, granular products in gravity-fed systems like chutes, hoppers, and bins. Magnetic Tubes serve a similar purpose by effectively removing ferrous metal from both dry and liquid products, often caused by metal-on-metal wear or other contamination. This category encompasses both Ceramic and Rare-Earth Tube Magnets.
Plate Magnets
Plate Magnets are ideal for gravity-fed angled chutes with inclines of up to 60 degrees, effectively handling product streams ranging from low to high volumes. The product lineup includes Ceramic Plate Magnets, Hybrid Plate Magnets, and Rare Earth Plate Magnets. Each type is designed to perform efficiently within these angled chutes while accommodating varying product stream volumes.
Compatibility Check - What Type of Magnetic Separation Fits Your Application
MPI offers magnetic separation solutions tailored for bulk gravity applications, specifically designed to eliminate ferrous contaminants from free-flowing dry materials like powders, granules, and pellets. These high-performance magnets, including drawer, plate, and hump separators, are installed in chutes, hoppers, or silos and utilize advanced rare-earth magnet technology to achieve maximum capture efficiency. Options are available in manual, quick-clean, and self-clean configurations, built to endure demanding environments and high-volume throughput.
Ensure the protection of critical equipment, uphold product purity, and maintain regulatory compliance with MPI’s gravity-fed magnetic separators. These systems are built for durability and ease of maintenance, enhancing product quality and processing uptime across the food, plastics, minerals, and bulk solids sectors.
Bulk Gravity Applications for Abrasive, Explosive, and Harsh Environments
Industries
Aggregate, Minerals, and Mining
Cement and Concrete Production
Foundry and Metal Casting
Glass and Ceramics Manufacturing
Fertilizer, Lime, and Potash Processing
Wood Pellet and Biomass Fuel Production
Powder and Bulk Solids Handling
Chemical and Petrochemical Industries
Feed and Grain Mills with Combustible Dust Risks
Applications
Heavy-duty tramp metal removal from crushed rock, coal, gravel, silica, or slag before screening and crushing
Wear-resistant separation at silo discharge points, inclined chutes, or transfer lines handling highly abrasive materials
Explosion-prone environments where combustible dust (e.g., grain dust, wood fines, coal dust) requires hazardous-location-rated magnets to comply with NFPA and OSHA standards
Corrosive material flows, such as salt, potash, phosphate, or urea, where 316 stainless steel or coated magnet housings resist chemical attack
Protecting expensive processing equipment, like impact mills, pulverizers, grinders, or mixers, from tramp iron damage
ATEX- and NEC-compliant installations for Class II, Division 1 and 2 areas with combustible particulate atmospheres
Magnetic separation during dry chemical blending or bulk fertilizer packaging, where dust, abrasion, and corrosion are prevalent
Use in remote or outdoor facilities exposed to wide temperature swings, moisture, or vibration, enabled by rugged sealed magnet assemblies and heavy-duty housings
Bulk Gravity Applications for Sanitary and Food-Grade Requirements
Industries
Food Processing
Beverage and Dairy Powder Production
Nutraceuticals
Pharmaceuticals
Cosmetics
Infant Formula and Baby Food
Pet Food Manufacturing
Applications
Removal of fine metal contaminants from food-grade powders (e.g., flour, sugar, spices)
Bulk ingredient handling in sanitary gravity chutes or bag dump stations
Magnetic protection at sifter or screener discharge points
Preventing contamination during batching, blending, or filling
Supporting HACCP, USDA, and FDA compliance with sanitary quick-clean designs
Cleaning stainless steel tramp metal from nutraceutical powders and gelatin capsules
Bulk Gravity Applications for High-Volume Production
Industries
Plastic Pellet and Resin Manufacturing
Feed, Grain, and Milling
Chemical Processing
Powder and Bulk Solids
Salt and Sugar Refineries
Dry Blending and Contract Packaging
Applications
Continuous inline magnetic separation during bulk gravity feed
Round-the-clock removal of ferrous metal from extruded plastic pellets or powder compounds
Gravity-flow protection in high-speed bagging or blending lines
Batching of dry ingredients with automated quick-clean or self-clean magnetic units
Keeping large-scale grain or feed operations running metal-free
Protecting granulators, mixers, and blenders from production-halting tramp metal