How To Choose and Use A Magnetic Separator


The first magnetic separator was developed back in 1940s, and since then, the magnetic separators have been widely used for removing ferrous compounds from a specific mixture. Over the years, the magnetic separators were significantly modified and improved, and today there are the obvious choice for tasks that involve removing ferrous components from a mixture. The ferrous metal compounds need to be removed because they may damage the equipment and lower the value of the final product. Today, there is a wide range of different magnetic separators, so choosing the right magnetic separator may require a lot of understanding about how the magnetic separators work.

First, you need to specify what type of material you will process with the magnetic separator, because every magnetic separator is specifically designed for specific material and application. In fact, this is the most important consideration for choosing the right magnetic separator. The materials are generally divided in three categories: dry, moist and liquid. However, there are thousands of variations of these three groups and they require different magnetic separators. But if you accurately define what type of material you will process, the choice will be easy.

Another important consideration is choosing a plate magnet design. The plate magnet is positioned in the bottom of the inclined chute of the magnetic separators and it is used for removing the occasional pieces of ferrous contamination, such as nuts, welding rod, staples, bolts, etc. A magnetic force gets and holds the ferrous compounds until the magnet plate is removed from the machine. The plate magnet is very efficient for removing occasional pieces of metal compounds, and it is also simple and easy to install. However, you need to pay attention because there are few different plate magnet designs, including round pipe separator, hump magnet and deep reach separator.

The drum magnet is a self-cleaning magnet assembly that continually removes tramp metal for smooth material flow. Fully enclosed in a stainless steel drum, the drum magnet is very efficient for fine and weak magnet contamination. The ferrous compounds are being drawn around the drum and are discharged through the gap at the bottom.

The grate magnet is also an important part of the magnetic separators that requires attention. A common grate magnet is composed of 25mm magnetic tubes placed in a grid formation to spread the material effectively. Different applications require different grate magnet designs.