Inline Magnets
Magnets are the first defense against stray metal in most lines. They’re effective, low-cost, and can be fitted virtually anywhere. Most applications use ceramic, alnico, or rare-earth magnets; ceramic and alnico being cheaper and rare-earth being more effective. We integrate many configurations of magnets in lines as shown here to protect equipment, products, and consumers from ferrous metals. If you need to screen for non-ferrous metals, we will use screeners, metal detectors, or x-ray.
Drawer Magnets
Drawer magnets are so-called because the cylinder assemblies pull out like drawers. We mount these magnets in lines where product flows through them by gravity and contacts the magnetic bars, thus depositing any ferrous metals that may be in it. As you can see in the images below, the bars are spaced to balance flow and product-surface contact, and these spacings will be chosen based on the properties of your product. Most products (like grains) will flow optimally though the standard configuration; but for product that flow less freely, we'll use wider spacings and either more bars or stronger magnets.
FF Series drawer magnets
The FF Series is designed for free-flowing product applications, excels in high temperatures, and can support 10,000 lb loads. It features single-motion cleaning magnets and comes with various options; an internal No-Spill™ slide gate and purge hopper for messless cleaning, a dump tube for load clearing, and a liquid port for easy resin coloration or temperature monitoring. There are low-profile models and others designed for fine-grained and dry resins.
HF Series Drawer Magnets
HF Drawer Magnets are larger versions of the FF Series. They flow bulk product over bar magnets and are available in any degree of cleaning automation. Manual models allow you to pull out the magnets and wipe them manually, self-cleaning models have silicon wipers that clean the cylinders as you pull out the drawer (with contaminants falling into a receptacle below, and pneumatic self-cleaning models which automatically discharge the drawer and wipe the magnets.
Plate Magnets
For bridging, thick, or stringy materials that will not flow well through a drawer magnet but will still flow, we will use these magnetic plates for product to flow over. Plate magnets come in a few different configurations as laid out below depending on where it makes sense in your line. Recommended magnet slopes are between 30 and 60°, and the ridge you can see on the exposed magnet below protects against contaminant wipe-off in rapid-flow applications (it keeps contaminants from being swept off the magnet by other product).
Hump Magnets
Hump magnets are the standard application of plate magnets in bulk ingredient lines. They come with optional self-cleaning features and metal-detectable gaskets and grommets.
Dry Line Magnet Traps
Also called "enclosed pipe magnets", we use these to allow unobstructed dry product flow in gravity and pneumatically fed lines. Magnets for gravity-fed applications can be angled as much as 60°, and pneumatic conveying solutions are operable at up to 15 psi.
Liquid Line Magnet Traps
Also called "magnetic liquid traps" we use these to remove ferrous tramp metal from liquid processing and conveying lines. The plate style is designed for viscous and fibrous liquids, but there is also a cartridge style designed for non-fibrous applications.
Custom Plates
Every processing system is unique, and often premade solutions don't work—they're either too large, aren't shaped right, or would be too hard to clean. Using an exposed plate, we can make a custom magnet configuration that will fit where you need them. We can put them in tight spaces, inside equipment, and before or after product discharges.
DRUM MAGNETS
We use drum magnets for high-volume removal and separation of metal—most commonly in waste & recycling applications. As you can see in the second gif of the gallery, they employ a drum rotating around a large crescent magnet which gives plenty of time for ferrous metals to be drawn to it. The magnet extends past the first discharge and into the second so the ferrous metals will be discharged separately from the non-ferrous metals or other product. They are self-cleaning, come in three different rare earth options, and allow high-volume throughput without the need for cleaning or interrupting product flow.
Specialty Magnets
Wedge Magnets
Wedge magnets are primarily for protecting pellet mills and particulate-processing equipment from damage from metal contaminants. They’re placed in narrow, vertical, or steeply inclined chutes because they need to be cleaned manually and should be easily accessible.
Torpedo Magnets
We use torpedo magnets to protect plastic molding machines and are suspended in the center of a JIT loader’s glass tube.
Liquid Line Magnet Traps
The TurboGrate employs a rotating grate magnet and flow-assist features to separate metal from especially flow-resistant product. It can be customized to fit your application and is available in a self-cleaning option.