Metal Control Solutions for the Powder and Bulk Solids Industry
Even tiny metal contaminants can lead to equipment damage, product defects, dust explosions, or regulatory non-compliance in the powder and bulk solids industry. MPI’s magnetic separation and material handling products are used throughout:
- Raw material intake
- Blending, conveying, and processing
- Packaging and bagging
Metal fines and tramp contaminants can originate from:
- Incoming raw materials (minerals, chemicals, plastics, additives)
- Abrasion in grinding, conveying, or milling equipment
- Pneumatic transport wear
- Poorly maintained hoppers or transfer lines
MPI solutions are installed to maximize plant safety, prevent downtime, ensure product quality, and protect expensive capital equipment.
| Stage | MPI Product | Purpose |
|---|---|---|
| Ingredient receiving | Hump magnets, plate magnets | Remove large tramp metal from incoming bulk powders |
| Blending & weighing | Drawer-in-housing magnets | Remove fine particles before batching or formulation |
| Pneumatic transport | Pneumatic line magnets | Clean ferrous from high-velocity, in-line powder movement |
| Sifting and screening | Magnetic head pulleys, drum separators | Remove scrap or contaminants before product refinement |
| Final packaging QA | Metal detectors | Final non-ferrous and ferrous contaminant detection |
MPI’s rugged, high-performance magnetic separators and detectors deliver:
- Reliable contaminant control
- Extended equipment life
- Reduced risk of recalls or batch loss
- Improved processing flow
- Compliance with regulatory and safety standards
Whether you're handling minerals, fertilizers, cement, polymers, dry foods, or chemical powders, MPI’s solutions help keep your operations clean, efficient, and safe.
Turnkey Solutions for Powder and Bulk Solids From Magnetic Products, Inc
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Protects Downstream Equipment from Wear and Failure
MPI magnets capture metallic particles before they enter grinders, rotary valves, mixers, and packaging machinery, reducing repair costs and process interruptions.
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Prevents Defective or Contaminated Final Product
Metal fragments can cause clumping, streaks, and voids—MPI ensures a clean product, reducing rework and preserving brand quality.
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Improves Process Efficiency and Flow Control
Magnetic separators help avoid buildup, blockages, or inconsistencies in pneumatic lines and gravity-fed chutes, maintaining continuous material flow.
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Compatible with Dry, Semi-Moist, and Dusty Materials
Whether you handle fine powders, flakes, granules, or dense mineral charges, MPI systems are built to withstand abrasive and dusty conditions.
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Complies with OSHA, NFPA, and Food Safety Regulations
MPI magnetic solutions support dust hazard mitigation and foreign material control in industries like chemicals, food, and agriculture.
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Reduces Dust and Explosion Hazards
By removing metal that may strike, spark, or ignite dry airborne particles, MPI helps control ignition sources in hazardous dust environments.
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Quick-Clean Designs for Minimal Downtime
Fast-cleaning options minimize labor and enable rapid product changeovers for facilities processing multiple powder types.
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Custom Engineered for Harsh Environments
All MPI separators are constructed from durable stainless steel and can be configured for high temperatures, corrosive materials, or abrasive solids.
How Does the Powder and Bulk Solids Industry Use Magnets?
US Customary Units
| MPI PRODUCT TYPE | WHERE | WHY | WHEN | HOW |
|---|---|---|---|---|
| Drawer Magnets (Manual, Quick-Clean, Self-Clean) | Gravity-fed systems (bag dump stations, blenders, sifter hoppers) | Remove tramp iron and fine particles from dry flow materials. Maximum magnetic contact with easy-access design for cleaning. | Prior to mixing, grinding, or packaging | Material passes over high-strength magnetic cartridges in sealed housing |
| Pneumatic Line Magnets (Quick-Clean, Self-Clean) | In-line with pressurized or vacuum pneumatic conveying systems | Capture contaminants during high-velocity material transfer. No interruption to material flow; suitable for dense and abrasive powders. | From silo to mixer, mixer to sifter, or sifter to packaging | Magnetic bars trap fine ferrous contaminants in fast-flowing systems |
| Hump Magnets and Plate Magnets | Gravity-fed vertical or angled chutes | Used in high-volume transitions like bagging or silo loading. Ideal for coarse material, rugged and reliable with low pressure drop. | During early-stage receiving or bulk ingredient metering | Material flows over or between magnetic plates to separate tramp metal |
| Pneumatic Line Magnets | Inside round vertical pipes or pneumatic lines | Compact inline magnetic solution for tight installations. Low resistance to flow, ideal for dusty or granular material. | In pre-mix, transport, or drying phases | Ferrous particles are attracted to the conical magnetic core |
| Magnetic Head Pulleys and Drum Separators | Bulk flow on belt conveyors or vibratory feeders | Automatically separate ferrous contaminants from high-volume streams. Hands-free, continuous separation for large or coarse product flows. | In reclaim systems, prior to packaging, or during screening | Magnetic surface lifts metal from material as it flows over belt or drum |
| Metal Detectors (Tunnel or Conveyor Style) | Final inspection before packaging or shipment | Detects all metal types (ferrous, non-ferrous, stainless) missed by magnets. Provides audit-ready verification of metal-free finished product. | After blending, sifting, or bulk bag filling | Electromagnetic field senses and rejects contaminated packages or flow |
