Magnetic separation in the recycling industry



The separation and sorting of metals is a basic task in the recycling industry that must be carried out efficiently and safely to increase plant productivity and minimise the amount of waste that ends up in a landfill or incinerated.

Methods for separating and classifying metals. Metal recycling

In most recycling plants, it will be necessary to install various types of magnetic separation throughout the entire process, from the incoming flow to the end, with the material clean and ready for processing.

At Dragoelectrónica we advise and offer a comprehensive solution, including all the steps in the treatment process of the material to be recycled and metal recycling.

Eddy current separation of non-ferrous metal

Separation of ferrous metals by means of powerful electromagnets

Separation by electromagnets plates

Magnetic separation in the recycling of glass, wood and foundry sands

In glass recycling, this involves the automatic removal of ferrous and non-ferrous metals such as bottle sheets. In wood recycling, it involves the removal of nails and stainless metals. In metal smelting centres, the separation and sorting of ferrous, non-ferrous and stainless metals.

Extraction of metals in glass recycling

Detection of metals embedded in wood

Metal extraction in foundry sand recycling

Magnetic drum separator for the extraction of stainless steel

Stainless steel is an alloy of various metals containing a small amount of ferromagnetic iron, up to AISI304 quality.

Due to this peculiarity, it is important that 100% of the material flow passes in contact with the drum made of high gradation Neodymium magnets in order for it to be effective in separating any metallic particles that contain a small amount of magnetic iron. With this system, we ensure the separation of all stainless steel that may contain a stream of materials to be recycled.

Drum with neodymium magnets.

Eddy current separator

Once we have extracted all the ferromagnetic particles and all particles containing stainless steel, what’s left is to separate from the process all the non-ferrous metallic elements, such as aluminium, brass or copper.

For this purpose, Dragoelectrónica proposes our eddy current separators, consisting of a high frequency electromagnetic field that induces electrical currents in the conductive materials that are in the flow of the material to be recycled. These non-ferrous metals are carried away by this electromagnetic current.

Eddy current separator

Discover our magnetic separators for recycling

Discover our eddy current separator

Discover our magnetic drum for stainless steel