When metal contamination gets into powder, liquid, or granular material, it usually costs more to fix downstream than it would have to catch it early. HIMAGNET's magnetic filter - sometimes called a hopper magnet or magnetic grid - sits directly in the material flow and pulls out ferrous particles before they reach your processing equipment. No power required, no moving parts, just a stainless steel housing packed with neodymium magnetic rods doing the work continuously.
How It Works and What's Inside
The core of the unit is a set of neodymium magnetic rods rated at 8,000, 10,000, or 12,000 gauss, depending on how aggressive the separation needs to be. Food processing lines dealing with fine powders generally want the higher end of that range - 10,000 GS or above - especially if the line runs under HACCP requirements. Lower gauss options work fine for coarser materials or less critical filtration steps.
The housing comes in two grades: food-grade SS316 stainless steel for anything touching consumables, or industrial-grade SS304 for general manufacturing use. Both are built to sit inside a hopper, pipe, or chute and let material flow past the magnetic rods while ferrous contamination gets trapped on contact.
Where This Gets Used
We've supplied these units for hydraulic oil filtration lines, food powder processing (spices, flour, powdered ingredients), chemical raw material purification, ceramic slurry production, water treatment intake lines, and plastic pellet sorting before extrusion. The common thread across all of these is the same: something upstream of a critical machine needs to be free of metal fragments, and running a magnet doesn't require energy, sensors, or maintenance downtime.
Customization and Cleaning
Hopper diameter, rod spacing, and gauss strength are all configurable to match your equipment opening and material flow rate. Send us your hopper or pipe dimensions and we'll confirm a matching configuration. There is no fixed minimum order quantity requirement across our full range, though most standard configurations ship at MOQ 5 pieces.
Cleaning is straightforward by design - the stainless sleeve allows the rod assembly to be pulled out for wiping down collected ferrous debris, without disassembling the surrounding equipment. Most operators build this into a regular maintenance schedule rather than waiting for visible buildup.
Handling Notes
These units use strong neodymium rods, and like any high-gauss magnet assembly, they should be handled carefully during installation - avoid letting the rod bundle snap against steel surfaces or other magnetic hardware, which can chip the coating or shift internal magnet alignment over time. Once mounted, the unit itself requires no special handling beyond routine cleaning.
Common Questions
What gauss level should I use for food processing?
Food industry applications typically call for 10,000 GS or higher. If your line runs under HACCP certification, we recommend the 12,000 GS configuration for maximum contamination capture.
How do I clean the magnetic rods?
The stainless steel sleeve design makes this simple - pull the rod assembly out periodically and wipe off the collected ferrous particles by hand. There's no need to disassemble the surrounding hopper or piping.
Can the size be customized to my equipment?
Yes. Send us your hopper diameter or pipe dimensions and we'll confirm a rod spacing and housing configuration that fits your setup. Custom gauss strength and housing material are also available.
To request a quote, send us your hopper dimensions, required gauss strength, and housing material preference (SS304 or SS316) - we'll respond within one business day.
HIMAGNET - Neodymium Magnet Manufacturer | ISO9001, CE, ROHS Certified | Fujian, China
Brand: HIMAGNET
Gauss Strength: 8,000 / 10,000 / 12,000 GS (selectable)
Core Material: Neodymium Magnetic Rods
Type: Magnetic Grid / Hopper Magnet
Housing Material: Food-grade SS316 or Industrial SS304
Coating: Ni-Cu-Ni
Tolerance: ±0.05mm
Max Working Temperature: 80°C
Certification: ISO9001, CE, TS16949, ROHS, SGS
Net Weight: 0.475kg
MOQ: 5 pieces
Lead Time: 10-20 days depending on quantity
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