MAGNETIC TUBES & GRATE MAGNETS

Applications

• Plastics
• Food
• Pharma
• Liquids
• Powder
• Recycling

Cartridge & Grate Magnets

Cartridge Magnets from Bunting Magnetics might also be referred to as magnetic rods, magnetic tubes or separator grids.

They are primarily used to extract ferrous metal contaminants from a product flow or line that passes directly over the magnet’s surface. The kinds of ferrous metal removed will often be things like nuts and bolts. Available in a variety of high strength versions, Bunting Magnetics can provide solutions to materials that are ferrimagnetic and ferromagnetic. Paramagnetic and antiferromagnetic materials can also be captured in this way.

A number of models are available in this range of cartridge magnets with a choice of Neodymium Power-Balanced™ Rare Earth or Neodymium High-Intensity Rare Earth Temperature Compensated models, in addition to ceramic and Alnico versions. When opting for one of the standard models, the construction will either be from 316 stainless steel for sanitary installations or 304 stainless steel. The standard cartridge diameter is 25mm or 1 inch. If cartridge magnets are required for applications with high flow rates or for when bridging might be possible, a better option is the heavy-duty range. These square rods provide a greater reach as well as almost twice the magnetic surface area of the standard cylindrical model, with a diameter of 38mm or 1.5 inches.

Bunting’s range of cartridge magnets which are easily installed into processing equipment feature either plain or tapped ends. They are available in a number of different lengths and are often purchased as inspection tools. In addition to being used in a standalone way as described above, they also serve as the main component in other magnetic separators like magnetic traps and grate magnets.

With such a number of available cartridge types, it can perhaps be difficult to work out which ones are best for your relevant applications and industries. The Bunting team are in place to help in any way they can, with advice and guidance regarding which cartridge is most suitable for the materials, flow rate and various kinds of ferrous metals in your particular situation.

Grate Magnets

The task of Bunting’s range of grate magnets is to extract fine ferrous fragments and particles as well as larger pieces of metal from dry, gravity fed, free flowing materials. Often seen used in industries like plastics, food and pharmaceutical, they can be suitable for other applications and industries too.

Bunting’s cartridge magnets form part of the make-up of grate magnets and they are combined (welded together) into frames of stainless steel ensuring they are incredibly strong. The magnetic forces of the grate magnets combine with those of the cartridges or rods and together they interact to produce very strong magnetic fields in the gaps (25mm or 1 inch) between.

Select from square, rectangle or round configurations as Bunting Grate Magnets can be used inside a range of hoppers, bins, chutes or housings to provide effective metal contamination protection. To break up and direct product flow over the cartridges, angled baffles (optional) can be used to increase performance levels.

If only a standard size grate magnet is required, these are available in Bunting’s ValueMag™ range and once ordered, will be quickly dispatched from stock. However, if something a little more bespoke is required, then please contact Bunting’s technical team to work out the best options and solutions for your particular magnetic separation requirements.