Removing Iron Contamination from Grain, Flour & Feed
Iron and tramp metal contamination in grain, flour and animal feed is removed with magnetic plates and humps at intake and gravity-fed chutes, magnetic grills for bulk material ducts, and magnetic drum separators for continuous high-volume conveyor flow. Metal fragments reaching a mill or blending line risk both a product safety recall and serious damage to rollers and grinding equipment. Below is which equipment fits which point in your process.
Why It Matters
- Product recall risk — metal fragments reaching packaged flour or feed is one of the most common causes of a food safety recall.
- Equipment damage — tramp iron reaching rollers, grinders or hammer mills causes expensive damage and unplanned downtime.
- Multiple entry points — contamination risk exists at intake, at blending, and again before packaging, so a single magnet at one point usually isn't enough.
Which Equipment Fits Your Line
Magnetic Plate and Magnetic Hump — positioned at intake, gravity-fed chutes and hoppers, or blending bins, catching tramp iron as material falls through.
Magnetic Grill / Drawer Type Magnetic Grill — for bulk material moving through ducts and hoppers, positioned directly in the flow.
Magnetic Drum Separator — for continuous, high-volume grain or feed flow on conveyors, self-cleaning so it doesn't interrupt production.
Frequently Asked Questions
Where should magnets be installed in a mill or feed plant?
At three key points: where raw material is received (intake), during blending, and again before packaging — contamination can enter at any of these stages.
What causes metal contamination in flour or feed?
Most commonly tramp metal in the original raw material or transport, and wear from milling and conveying equipment itself.
Can this handle high-volume continuous grain flow?
Yes — the Magnetic Drum Separator is self-cleaning and built for continuous conveyor throughput without stopping for manual cleaning.
Is this suitable for animal feed as well as human food grain?
Yes — the same equipment range applies to both; the difference is typically which point in the process needs coverage, not the equipment itself.
Need to cover a specific point in your grain, flour or feed line? Enquire now and our engineering team will size the right solution.