Magnets are the first defense against stray metal particulates for every product line. 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.
Drawer magnets are so-called because the cylinders pull out like drawers. Pneumatic or manual describe the method by which the cylinders are discharged, and standard or self-cleaning refers to how they are cleared of contaminants. Standard cleaning means wiped by hand and self-cleaning systems allow contaminants to fall after leaving a magnetic field. These terms are used across applications of magnetic separation.
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.
Plate magnets are general-use products that come in a variety of forms and can be placed numerous places along a line. Product flows freely over the magnetic surface, typically sloped 30-60°, with enough space that it doesn’t bridge. The tapered surface protects against contaminant wipe-off in rapid-flow applications.
Where space is limited, isolated plate magnets can be integrated into existing equipment or placed above/below product as it’s conveyed.
Hump magnets are the standard solution for plate magnet applications. They come with optional self-cleaning features and metal-detectable gaskets and grommets.
Enclosed pipe magnets
Enclosed pipe magnets allow unobstructed dry product flow in gravity and pneumatically fed applications. Magnets for gravity-fed applications can be angled as much as 60°, and pneumatic conveying solutions are operable at up to 15 psi.
Wedge magnets are primarily for protecting pellet mills and particulate-processing equipment from damage from tramp metal. They’re placed in narrow, vertical, or steeply inclined chutes because they need to be cleaned manually and should be easily accessible.
Torpedo magnets were designed to protect plastic molding machines and are suspended in the center of a JIT loader’s glass tube.
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.