In order to optimize heat dissipation, magnet force and magnet life time, the SGM electro magnets are designed with very conservative electrical density for their winding and, as a standard, their windings are of anodized aluminum strip.
The first two elements (material temperature and duty cycle) are specific to every application and situation while current density and the type of magnet winding conductor are decided by magnet designer. Current density of the winding conductor.Temperature of material to be lifted (in case of a hot application).The four elements that impact the internal temperature of an electro magnets are: Electro magnets generate heat (Joule effect) when energized and the hotter the magnet winding, the more the current decreases. Once an electro magnet is designed and built, the first two elements (size and turns) are set while the third one (current) can vary based on direct voltage (Vdc) setting and winding temperature that impacts the electrical resistance (R) of the winding conductor (Vdc= R x Idc). The quantity of direct current (Amps, Idc) passing through the winding (the more, the stronger).The quantity of turns that constitute the winding (the more, the stronger).The size (and geometry) of the ferrous core (the larger, the stronger).If you have a industrial magnet that needs repair – why not look at our magnet repair section and get in touch to find out how we can help you.The lifting force of an electro magnet is determined by three factors which are: Store magnets off the ground where possible.Do not use the magnet as drop ball or ram.Correct or replace faulty controller components.
Heat is the number one reason for premature magnet failure. SGM Magnetics started in 1954 with the design and production of lifting magnets for industrial. Welcome to the premier industrial source for Lifting Magnets in Ohio - Northern. Instead, we find that working with magnets chronically underperform and are often a costly maintenance item. They can be incredibly reliable and potentially last for many years of service. Radpol Engineering provides load strength testing and repairs on most brands of magnetic lifting equipment as specified in Australian Standard AS4991, section 6.9. But you could be getting more for your money from your magnet system. Radpol Engineering Australia for all your magnetic supply, repair and testing solutions.
Lifting magnets are often revenue generators for scrap metal yards and steel production facilities.
Magnet maintenance for productivity and longer life